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123-586: The Chazy Fossil Reef National Natural Landmark includes three islands in Lake Champlain . Included within the designated area are two preserves on Vermont's Isle La Motte ; the 20-acre (8.1 ha) Fisk Quarry Preserve and the 83-acre (34 ha) Goodsell Ridge Preserve are both open to the public and managed by the Isle La Motte Preservation Trust. New York's Valcour Island and Garden Island are also included as part of

246-718: A direct invasion route to British Canada. However, had the British controlled the lake, they could have divided the colonies of New England and further depleted the Continental Army . The Continental Army's first offensive action took place in May 1775, three weeks after the Battles of Lexington and Concord . Ethan Allen , accompanied by 200 Green Mountain Boys , was ordered to capture Fort Ticonderoga and retrieve supplies for

369-482: A discharge of pollution into Lake Champlain. Agricultural and urban runoff from the watershed or drainage basin is the primary source of excess phosphorus, which exacerbates algae blooms in Lake Champlain. The most problematic blooms have been cyanobacteria , commonly called blue-green algae, in the northeastern part of the lake: primarily Missisquoi Bay . To reduce phosphorus runoff to this part of

492-596: A dooryard garden, typical of mid-19th century New England village homes, and his experience settling in the Champlain Valley depicts the industries and lifestyles surrounding Lake Champlain following the Revolutionary War. Similar to the experience of Salmon Dutton, former colonial militia Major General Hezekiah Barnes settled in Charlotte, Vermont , in 1787. Following the war, Barnes worked as

615-472: A fragile ecosystem known as the Southern Appalachian spruce–fir forest . Fraser fir rarely occurs below 5,500 ft (1,700 m), and becomes the dominant tree type at 6,200 ft (1,900 m). By contrast, balsam fir is found from near sea level to the tree line in the northern Appalachians, but ranges only as far south as Virginia and West Virginia in the central Appalachians, where it

738-735: A great thickness of sediment accumulated. Eventually, the tectonic forces pulling the two continents apart became so strong that an ocean formed off the eastern coast of the Laurentian margin. This was called the Iapetus Ocean and was the precursor of the modern Atlantic Ocean. The rocks of the Valley and Ridge province formed over millions of years, in the Iapetus. Shells and other hard parts of ancient marine plants and animals accumulated to form limey deposits that later became limestone. This

861-502: A name for the tribe and region spreading well inland to the north. Pánfilo de Narváez 's expedition first entered Apalachee territory on June 15, 1528, and applied the name. Now spelled "Appalachian", it is the fourth-oldest surviving European place-name in the US. After the 1540 expedition of Hernando de Soto , Spanish cartographers began to apply the name of the tribe to the mountains themselves. The first cartographic appearance of Apalchen

984-456: A natural defensive position. The British and American vessels engaged in combat for much of the day, only stopping due to impending nightfall. After a long day of combat, the American fleet was in worse shape than the experienced British Navy. Upon ceasefire, Arnold called a council of war with his fellow officers, proposing to escape the British fleet via rowboats under the cover of night. As

1107-672: A new ocean opened up, the Rheic Ocean , during the Middle to Late Devonian, and subsequently its closure would result in the formation of the Alleghanian orogeny . As the continental plates moved closer together, fragments of oceanic crust, islands, and other continental masses collided with the eastern margin of ancestral North America. By this time, plants had appeared on land, followed by scorpions, insects, and amphibians. The ocean continued to shrink until, about 270 million years ago,

1230-504: A number of deciduous rhododendrons (azaleas), and smaller heaths such as teaberry ( Gaultheria procumbens ) and trailing arbutus ( Epigaea repens ). The evergreen great rhododendron ( Rhododendron maximum ) is characteristic of moist stream valleys. These occurrences are in line with the prevailing acidic character of most oak forest soils. In contrast, the much rarer chinquapin oak ( Quercus muehlenbergii ) demands alkaline soils and generally grows where limestone rock

1353-444: A number of serious insect and disease outbreaks. Among the most conspicuous is that of the introduced spongy moth ( Lymantria dispar ), which infests primarily oaks, causing severe defoliation and tree mortality. But it also has the benefit of eliminating weak individuals, and thus improving the genetic stock, as well as creating rich habitat of a type through accumulation of dead wood. Because hardwoods sprout so readily, this moth

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1476-658: A road surveyor; he also established an inn and trading post in Charlotte, along the main trade route from Montreal down Lake Champlain. Barnes' stagecoach inn was built in traditional Georgian style, with 10 fireplaces, a ballroom on the interior and a wraparound porch on the outside. In 1800, Continental Army Captain Benjamin Harrington established a distillery business in Shelburne, Vermont , which supplied his nearby inn. These individual accounts shed light on

1599-532: A row, or flocks of blackbirds flying close to the water". In 2022, it was reported that a feature dramatic film, Lucy and the Lake Monster , was in the works about a young orphan girl and her grandfather looking for Champ. A pollution prevention, control and restoration plan for Lake Champlain was first endorsed in October 1996 by the governors of New York and Vermont and the regional administrators of

1722-612: A small uproar, the Great Lake status was rescinded on March 24 (although New York and Vermont universities continue to receive funds to monitor and study the lake). In 1609, Samuel de Champlain wrote that he saw a lake monster 5 ft (1.5 m) long, as thick as a man's thigh, with silver-gray scales a dagger could not penetrate. The alleged monster had 2.5 ft (0.76 m) jaws with sharp and dangerous teeth. Native Americans claimed to have seen similar monsters 8 to 10 ft (2.4 to 3.0 m) long. This mysterious creature

1845-461: A successful siege of Quebec. In May 1776, with the arrival of a British convoy carrying 10,000 British and Hessian troops to Canada, the Continental forces retreated back down the Champlain Valley to reevaluate their strategy. "I know of no better method than to secure the important posts of Ticonderoga and Crown Point, and by building a number of armed vessels to command the lakes, otherwise

1968-544: A variety of oaks ( Quercus spp.), hickories ( Carya spp.) and, in the past, by the American chestnut ( Castanea dentata ). The American chestnut was virtually eliminated as a canopy species by the introduced fungal chestnut blight ( Cryphonectaria parasitica ), but lives on as sapling-sized sprouts that originate from roots, which are not killed by the fungus. In present-day forest canopies, chestnut has been largely replaced by oaks. The oak forests of

2091-531: Is Kaniatarakwà:ronte , meaning "a bulged lake" or "lake with a bulge in it". An alternate name is Kaniá:tare tsi kahnhokà:ronte (phonetic English spelling Caniaderi Guarunte ), meaning "door of the country" or "lake to the country". The lake is an important eastern gateway to Iroquois Confederacy lands. The lake was named after the French explorer Samuel de Champlain , who encountered it in July 1609. While

2214-476: Is 23 miles (37 km) north of Glens Falls on the Hudson River and 70 miles (110 km) north of Albany, New York . Forts were built at Ticonderoga and Crown Point ( Fort St. Frederic ) to control passage on the lake in colonial times. Important battles were fought at Ticonderoga in 1758 and 1775. During the Revolutionary War, the British and Americans conducted a frenetic shipbuilding race through

2337-483: Is a boreal species that forms a few high elevation outliers as far south as West Virginia. All of these species except white pine tend to occupy sandy, rocky, poor soil sites, which are mostly acidic in character. White pine, a large species valued for its timber, tends to do best in rich, moist soil, either acidic or alkaline in character. Pitch pine is also at home in acidic, boggy soil, and Table Mountain pine may occasionally be found in this habitat as well. Shortleaf pine

2460-636: Is a natural freshwater lake in North America . It mostly lies between the US states of New York and Vermont , but also extends north into the Canadian province of Quebec . The New York portion of the Champlain Valley includes the eastern parts of Clinton County and Essex County . Most of this area is part of the Adirondack Park . There are recreational facilities in the park and along

2583-471: Is an extensive Ordovician carbonate rock formation that extends from Tennessee to Quebec and Newfoundland . The oldest reefs are around "The Head" of the south end of Isle La Motte ; slightly younger reefs are found at the Fisk Quarry, and the youngest (the famous coral reefs) are in fields to the north. The lake has long acted as a border between indigenous nations, much as it is today between

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2706-719: Is fed by the Ausable , Boquet , Great Chazy , La Chute , Little Ausable, Little Chazy , Salmon and Saranac rivers, along with Putnam Creek. In Quebec, it is fed by the Pike River . It is connected to the Hudson River by the Champlain Canal . Parts of the lake freeze each winter, and in some winters the entire lake surface freezes, referred to as "closing". In July and August, the lake temperature reaches an average of 70 °F (21 °C). The Chazy Reef

2829-403: Is found at high elevations in the northern Appalachians, and in bogs as far south as Pennsylvania. The Appalachians are also home to two species of fir, the boreal balsam fir ( Abies balsamea ), and the southern high elevation endemic, Fraser fir ( Abies fraseri ). Fraser fir is endemic to the highest parts of the southern Appalachian Mountains, where along with red spruce it forms

2952-533: Is generally found in warmer habitats and at lower elevations than the other species. All the species listed do best in open or lightly shaded habitats, although white pine also thrives in shady coves, valleys, and on floodplains. The Appalachians are characterized by a wealth of large, beautiful deciduous broadleaf (hardwood) trees. Their occurrences are best summarized and described in E. Lucy Braun 's 1950 classic, Deciduous Forests of Eastern North America (Macmillan, New York). The most diverse and richest forests are

3075-726: Is in the Lake Champlain Valley between the Green Mountains of Vermont and the Adirondack Mountains of New York , drained northward by the 106 mi-long (171 km) Richelieu River into the St. Lawrence River at Sorel-Tracy, Quebec , northeast and downstream of Montreal . The Champlain basin collects waters from the northwestern slopes of the Green Mountains and the eastern portion of

3198-476: Is likely the original Lake Champlain monster. The monster has been memorialized in sports teams' names and mascots, e.g., the Vermont Lake Monsters and Champ, the mascot of the state's minor league baseball team. A Vermont Historical Society publication recounts the story and offers possible explanations for accounts of the so-called monster: "floating logs, schools of large sturgeon diving in

3321-414: Is near the surface. Hence no ericaceous shrubs are associated with it. The Appalachian flora also include a diverse assemblage of bryophytes (mosses and liverworts), as well as fungi . Some species are rare and/or endemic. As with vascular plants , these tend to be closely related to the character of the soils and the thermal environment in which they are found. Eastern deciduous forests are subject to

3444-525: Is not as harmful as the hemlock woolly adelgid . Perhaps more serious is the introduced beech bark disease complex, which includes both a scale insect ( Cryptococcus fagisuga ) and fungal components. During the 19th and early 20th centuries, the Appalachian forests were subject to severe and destructive logging and land clearing, which resulted in the designation of the national forests and parks as well many state-protected areas. However, these and

3567-527: Is now the southern United States, the Ococee Basin was formed. Seawater filled the basin. Rivers from the surrounding countryside carried clay, silt, sand, and gravel to the basin, much as rivers today carry sediment from the midcontinent region to the Gulf of Mexico. The sediment spread out in layers on the basin floor. The basin continued to subside, and over a long period of time, probably millions of years,

3690-532: Is on Diego Gutiérrez 's map of 1562; the first use for the mountain range is the map of Jacques le Moyne de Morgues in 1565. The name was not commonly used for the whole mountain range until the late 19th century. A competing and often more popular name was the "Allegheny Mountains", "Alleghenies", and even "Alleghania". In the early 19th century, Washington Irving proposed renaming the United States either Appalachia or Alleghania. In U.S. dialects in

3813-552: Is possible that the cratons of Kalahari , and Rio Plato , were also part of that early collision since they were present as Rodinia broke up). Mountain-building referred to as the Grenville Orogeny occurred along the boundaries of the cratons. The present Appalachian Mountains have at least two areas which are made from rock formations that were formed during this orogeny - the Blue Ridge Mountains and

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3936-659: Is sometimes termed the Appalachian orogeny , writing communities struggle to agree on an encyclopedic definition of the mountain range. However, each of the governments has an agency that informs the public about the major landforms that make up the countries, the United States Geological Survey (USGS) and the Geological Survey of Canada (GSC). The landforms are referred to as physiographic regions. The regions create precise boundaries from which maps can be drawn. The Appalachian Highlands

4059-706: Is subject to the hemlock woolly adelgid ( Adelges tsugae ), an introduced insect, that is rapidly extirpating it as a forest tree. Less abundant, and restricted to the southern Appalachians, is Carolina hemlock ( Tsuga caroliniana ). Like Canada hemlock, this tree suffers severely from the hemlock woolly adelgid. Several species of pines characteristic of the Appalachians are eastern white pine ( Pinus strobus ), Virginia pine ( Pinus virginiana ), pitch pine ( Pinus rigida ), Table Mountain pine ( Pinus pungens ) and shortleaf pine ( Pinus echinata ). Red pine ( Pinus resinosa )

4182-460: Is the name of one of the eight physiographic regions of the contiguous 48 United States. The Appalachian Uplands is the name of one of seven physiographic regions of Canada. The second level in the physiographic classification schema for the USGS is "province", the same word as Canada uses to divide its political subdivisions, meaning that the terminology used by the two countries do not match below

4305-506: Is the same process by which limestone forms in modern oceans. The weathering of limestone, now exposed at the land surface, produces the lime-rich soils that are so prevalent in the fertile farmland of the Valley and Ridge province. During this continental break-up, around 600 million to 560 million years ago, volcanic activity was present along the tectonic margins. There is evidence of this activity in today's Blue Ridge Mountains. Mount Rogers , Whitetop Mountain , and Pine Mountain are all

4428-464: Is usually confined above 3,900 ft (1,200 m) asl, except in cold valleys. Curiously, it is associated with oaks in Virginia. The balsam fir of Virginia and West Virginia is thought by some to be a natural hybrid between the more northern variety and Fraser fir. While red spruce is common in both upland and bog habitats, balsam fir, as well as black spruce and tamarack, are more characteristic of

4551-628: The Adirondacks . After the Grenville orogeny, the direction of the continental drift reversed, and the single supercontinent Rodinia began to break up. The mountains formed during the Grenvillian era underwent erosion due to weathering, glaciation, and other natural processes, resulting in the leveling of the landscape. The eroded sediments from these mountains contributed to the formation of sedimentary basins and valleys. For example, in what

4674-518: The Alps and the Rockies before natural erosion occurred over the last 240 million years leading to what is present today. The Appalachian Mountains are a barrier to east–west travel, as they form a series of alternating ridgelines and valleys oriented in opposition to most highways and railroads running east–west. This barrier was extremely important in shaping the expansion of the United States in

4797-471: The Appalachians , are a mountain range in eastern to northeastern North America . The term "Appalachian" refers to several different regions associated with the mountain range, and its surrounding terrain. The general definition used is one followed by the United States Geological Survey and the Geological Survey of Canada to describe the respective countries' physiographic regions. The U.S. uses

4920-674: The Champlain Canal connected Lake Champlain to the Hudson River system, allowing north–south commerce by water from New York City to Montreal and Atlantic Canada . In 1909, 65,000 people celebrated the 300th anniversary of the French discovery of the lake. Attending dignitaries included President William Howard Taft , along with representatives from France, Canada and the United Kingdom. In 1929, then-New York Governor Franklin Roosevelt and Vermont Governor John Weeks dedicated

5043-596: The Coal Region of northeastern Pennsylvania . The bituminous coal fields of western Pennsylvania , western Maryland , southeastern Ohio, eastern Kentucky, southwestern Virginia , and West Virginia contain the sedimentary form of coal. The mountain top removal method of coal mining , in which entire mountain tops are removed, is currently threatening vast areas and ecosystems of the Appalachian Mountain region. The surface coal mining that started in

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5166-544: The Great Appalachian Valley , which stretches between Quebec , Canada, to the north, and Alabama , US, to the south. The Champlain Valley is a physiographic section of the larger Saint Lawrence Valley , which in turn is part of the larger Appalachian physiographic division. Lake Champlain is one of numerous large lakes scattered in an arc through Labrador , in Canada, the northern United States, and

5289-758: The Gulf of Mexico . In the central section, north of the New River, the rivers, rising in or just beyond the Valley Ridges, flow through great gorges to the Great Valley, and then across the Blue Ridge to tidal estuaries penetrating the coastal plain via the Roanoke River, James River , Potomac River , and Susquehanna River . In the northern section the height of land lies on the inland side of

5412-734: The Iapetus Ocean , from the North America/Europe collision (See Caledonian orogeny ). By the end of the Mesozoic Era , the Appalachian Mountains had been eroded to an almost flat plain. It was not until the region was uplifted during the Cenozoic Era that the distinctive topography of the present formed. Uplift rejuvenated the streams, which rapidly responded by cutting downward into the ancient bedrock. Some streams flowed along weak layers that define

5535-491: The North American craton . Volcanoes grew along the continental margin coincident with the initiation of subduction . Thrust faulting uplifted and warped older sedimentary rock laid down on the passive margin. As the mountains rose, erosion began to wear them down over time. Streams carried rock debris downslope to be deposited in nearby lowlands. The Taconic orogeny ended after about 60 million years, but built much of

5658-510: The Northwest Territories of Canada. It is the thirteenth-largest lake by area in the US. Approximately 490 sq mi (1,269 km ) in area, the lake is 107 mi (172 km) long and 14 mi (23 km) across at its widest point, and has a maximum depth of approximately 400 ft (120 m). The lake varies seasonally from about 95 to 100 ft (29 to 30 m) above mean sea level . Lake Champlain

5781-556: The Rocky Mountains of the west. Some of the outcrops in the Appalachians contain rocks formed during the Precambrian era. The geologic processes that led to the formation of the Appalachian Mountains started 1.1 billion years ago. The first mountain range in the region was created when the continents of Laurentia and Amazonia collided, creating a supercontinent called Rodinia . The collision of these continents caused

5904-620: The United States Environmental Protection Agency (EPA). In April 2003, the plan was updated, and Quebec signed on to it. The plan is being implemented by the Lake Champlain Basin Program and its partners at the state, provincial, federal and local levels. Renowned as a model for interstate and international cooperation, its primary goals are to reduce phosphorus inputs to Lake Champlain, reduce toxic contamination, minimize

6027-525: The Webster–Ashburton Treaty of 1842, the Canada–U.S. border was adjusted northward to include the strategically important site of "Fort Blunder" on the US side. In 1844, work was begun to replace the remains of the 1812-era fort with a massive new Third System masonry fortification, known as Fort Montgomery . Portions of this fort are still standing. In the early 19th century, the construction of

6150-723: The eastern seaboard of the United States and the Midwest region of the country. The Eastern Continental Divide follows the Appalachian Mountains from Pennsylvania to Georgia. The Appalachians, particularly the Central and Southern regions, is one of the most biodiverse places in North America. The north–south orientation of the long ridges and valleys contributes to the high number of plant and animal species. Species were able to migrate through these from either direction during alternating periods of warming and cooling, settling in

6273-1552: The mixed-mesophytic or medium-moisture types, which are largely confined to rich, moist montane soils of the southern and central Appalachians, particularly in the Cumberland and Allegheny Mountains, but also thrive in the southern Appalachian coves. Characteristic canopy species are white basswood ( Tilia heterophylla ), yellow buckeye ( Aesculus octandra ), sugar maple ( Acer saccharum ), American beech ( Fagus grandifolia ), tuliptree ( Liriodendron tulipifera ), white ash ( Fraxinus americana ) and yellow birch ( Betula alleganiensis ). Other common trees are red maple ( Acer rubrum ), shagbark and bitternut hickories ( Carya ovata and C. cordiformis ) and black or sweet birch ( Betula lenta ). Small understory trees and shrubs include paw paw ( Asimina tribola ), flowering dogwood ( Cornus florida ), hophornbeam ( Ostrya virginiana ), witch-hazel ( Hamamelis virginiana ) and spicebush ( Lindera benzoin ). There are also hundreds of perennial and annual herbs, among them such herbal and medicinal plants as American ginseng ( Panax quinquefolius ), goldenseal ( Hydrastis canadensis ), bloodroot ( Sanguinaria canadensis ) and black cohosh ( Cimicifuga racemosa ). The foregoing trees, shrubs, and herbs are also more widely distributed in less rich mesic forests that generally occupy coves, stream valleys and flood plains throughout

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6396-475: The 1796 Jay Treaty . Eager to take back control of Lake Champlain following the end of the Revolutionary War, Americans flocked to settle the Champlain Valley . Many individuals emigrated from Massachusetts and other New England colonies, such as Salmon Dutton , a settler of Cavendish, Vermont . Dutton emigrated in 1782 and worked as a surveyor, town official and toll-road owner. His home had

6519-596: The 1940s has significantly impacted the central Appalachian Mountains in Kentucky , Tennessee , Virginia and West Virginia. Early mining methods were unregulated and mined land reclamation research, including acid base reaction , was led by the West Virginia University in the 1960s and 1970s. West Virginia developed rigorous mine reclamation standards for state coal mines in the late 1960s. Regulations were introduced by most federal states to protect

6642-568: The 96-square-mile (248.6 km ) archipelago of Saint Pierre and Miquelon , an overseas collectivity of France , meaning it is technically in three countries. The highest peak of the mountain range is Mount Mitchell in North Carolina at 6,684 feet (2,037 m), which is also the highest point in the United States east of the Mississippi River . The range is older than the other major mountain range in North America,

6765-656: The Adirondack Mountains, reaching as far south as the 32 mi-long (51 km) Lake George in New York. Lake Champlain drains nearly half of Vermont, and approximately 250,000 people get their drinking water from the lake. The lake is fed in Vermont by the LaPlatte, Lamoille , Missisquoi , Poultney and Winooski rivers, along with Lewis Creek, Little Otter Creek and Otter Creek . In New York, it

6888-462: The American victory denied the British any leverage to demand exclusive control over the Great Lakes or territorial gains against the New England states. Three US Naval ships have been named after this battle: USS  Lake Champlain  (CV-39) , USS  Lake Champlain  (CG-57) and a cargo ship used during World War I . Following the War of 1812, the U.S. Army began construction on " Fort Blunder ": an unnamed fortification built at

7011-419: The Appalachian Basin. Some plateaus of the Appalachian Mountains contain metallic minerals such as iron and zinc . There are many geological issues concerning the rivers and streams of the Appalachians. In spite of the existence of the Great Appalachian Valley, many of the main rivers are transverse to the mountain system axis. The drainage divide of the Appalachians follows a tortuous course that crosses

7134-489: The Appalachian Mountains by the late 1960s. Social and political activism brought about the Surface Mining Control and Reclamation Act of 1977 . The 1859 discovery of commercial quantities of petroleum in the Appalachian Mountains of western Pennsylvania started the modern United States petroleum industry . Recent discoveries of commercial natural gas deposits in the Marcellus Shale formation and Utica Shale formations have once again focused oil industry attention on

7257-434: The Appalachian range in New Brunswick and Quebec . While exploring inland along the northern coast of Florida in 1528, the members of the Narváez expedition , including Álvar Núñez Cabeza de Vaca , found a Native American village near present-day Tallahassee, Florida whose name they transcribed as Apalchen or Apalachen [a.paˈla.tʃɛn] . The name was soon altered by the Spanish to Apalachee and used as

7380-419: The Blue Ridge again reaches 2,000 ft (600 m) and higher. In the Virginia Blue Ridge, the following are some of the highest peaks north of the Roanoke River : Stony Man 4,031 ft (1,229 m), Hawksbill Mountain 4,066 ft (1,239 m), Apple Orchard Mountain 4,225 ft (1,288 m) and Peaks of Otter 4,001 and 3,875 ft (1,220 and 1,181 m). South of the Roanoke River, along

7503-439: The Blue Ridge, are Virginia's highest peaks including Whitetop Mountain 5,520 ft (1,680 m) and Mount Rogers 5,729 ft (1,746 m), the highest point in the Commonwealth. Chief summits in the southern section of the Blue Ridge are located along two main crests, the Western or Unaka Front along the Tennessee - North Carolina border and the Eastern Front in North Carolina, or one of several "cross ridges" between

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7626-622: The British burned Arnold's flagship, the Royal Savage , to the east, the Americans rowed past the British lines. The following morning, the British learned of the Americans' escape and set out after the fleeing Continental vessels. On October 13, the British fleet caught up to the struggling American ships near Split Rock Mountain . With no hope of fighting off the powerful British navy, Arnold ordered his men to run their five vessels aground in Ferris Bay, Panton, Vermont . The depleted Continental army escaped on land back to Fort Ticonderoga and Mount Independence ; however, they no longer controlled

7749-402: The British fleet on Lake Champlain. By the end of the summer of 1776, the opposing armies were prepared to battle over the strategic advantage of controlling Lake Champlain. On October 11, 1776, the British and American naval fleets met on the western side of Valcour Island , on Lake Champlain. American General Benedict Arnold established the location, as it provided the Continental fleet with

7872-478: The British took control of the fort. However, Burgoyne's southern campaign did not go uncontested. On October 7, 1777, American General Horatio Gates , who occupied Bemis Heights , met Burgoyne's army at the Second Battle of Freeman's Farm . At Freeman's Farm, Burgoyne's army suffered its final defeat and ended its invasion south into the colonies. Ten days later, on October 17, 1777, British General Burgoyne surrendered his army at Saratoga . This defeat

7995-432: The British. Thus, the colonial militias devised a plan to take control of the two forts and bring the guns back to the fight in Boston. The necessity of controlling the two forts at Ticonderoga and Crown Point placed Lake Champlain as a strategic arena during the Revolutionary War. By taking control of these forts, Americans not only gained heavy artillery, but control of a vast water highway as well: Lake Champlain provided

8118-444: The Champlain Valley from 1778 to 1780, and Lake Champlain permitted direct transportation of supplies from the British posts at the northern end of the lake. With the end of the Revolutionary War in 1783, the British naval fleet on Lake Champlain retreated up to St. John's. However, British troops garrisoned at Fort Dutchman's Point ( North Hero, Vermont ) and Fort au Fer ( Champlain, New York ), on Lake Champlain, did not leave until

8241-411: The Champlain Valley. The goal of this invasion was to divide the New England colonies, thus forcing the Continental Army into a separated fight on multiple fronts. Lake Champlain provided Burgoyne with protected passage deep into the American colonies . Burgoyne's army reached Fort Ticonderoga and Mount Independence in late June, 1777. During the night of July 5, the American forces fled Ticonderoga as

8364-491: The Great Balsams. The Western Blue Ridge Front is subdivided into the Unaka Range , the Bald Mountains , the Great Smoky Mountains , and the Unicoi Mountains , and its major peaks include Roan Mountain 6,285 ft (1,916 m) in the Unakas, Big Bald 5,516 ft (1,681 m) and Max Patch 4,616 ft (1,407 m) in the Bald Mountains, Kuwohi 6,643 ft (2,025 m), Mount Le Conte 6,593 feet (2,010 m), and Mount Guyot 6,621 ft (2,018 m) in

8487-555: The Great Smokies, and Big Frog Mountain 4,224 ft (1,287 m) near the Tennessee- Georgia -North Carolina border. Prominent summits in the cross ridges include Waterrock Knob (6,292 ft (1,918 m)) in the Plott Balsams . Across northern Georgia, numerous peaks exceed 4,000 ft (1,200 m), including Brasstown Bald , the state's highest, at 4,784-and-4,696 ft (1,458-and-1,431 m) Rabun Bald . In north-central Alabama , Mount Cheaha rises prominently to 1,445 feet (440 m) over its surroundings, as part of

8610-421: The Lake Champlain waterway. The approaching winter of 1776–1777 restricted British movement along the recently controlled Lake Champlain. As the British abandoned Crown Point and returned to Canada for the winter, the Americans reduced their garrisons in the Champlain Valley from 13,000 to 2,500 soldiers. In early 1777, British General John Burgoyne led 8,000 troops from Canada, down Lake Champlain and into

8733-456: The October 1776, the Continental Army had 16 operating naval vessels on Lake Champlain: a great increase to the four small ships they had at the beginning of the summer. General Benedict Arnold commanded the American naval fleet on Lake Champlain, which was composed of volunteers and soldiers drafted from the Northern Army. With great contrast to the Continental navy, experienced Royal Navy officers, British seamen and Hessian artillerymen manned

8856-547: The U.S./Canadian border, the St. Lawrence Valley area is handled differently in the physiographic classification schemas. The part of the St. Lawrence Valley in the United States is one of the second-level classifications, part of the Appalachian Highlands. In Canada, the area is part of the first-level classification, the St. Lawrence Lowlands . This includes the area around the city of Montreal, Anticosti Island , and

8979-641: The colonial era. The range is the home of a very popular recreational feature, the Appalachian Trail . This is a 2,175-mile (3,500 km) hiking trail that runs all the way from Mount Katahdin in Maine to Springer Mountain in Georgia , passing over or past a large part of the Appalachian range. The International Appalachian Trail is an extension of this hiking trail into the Canadian portion of

9102-457: The continent that are now exposed. The first mountain-building tectonic plate collision that initiated the construction of what are today the Appalachians occurred at least a billion years ago when the pre-North American craton called Laurentia collided with at least one other craton - Amazonia . All the other cratons of the earth also collided at about this time to form the supercontinent Rodinia and were surrounded by one single ocean. (It

9225-669: The continents that were ancestral to North America and Africa collided during the formation of the supercontinent Pangea . Because North America and Africa were once geographically connected, the Appalachians formed part of the same mountain chain as the Little Atlas in Morocco . This mountain range, known as the Central Pangean Mountains , extended into Scotland , before the Mesozoic Era opening of

9348-412: The deciduous needle-leaf conifer, the tamarack , or eastern larch ( Larix laricina ). The dominant northern and high elevation conifer is the red spruce ( Picea rubens ), which grows from near sea level to above 4,000 ft (1,200 m) above sea level (asl) in northern New England and southeastern Canada. It also grows southward along the Appalachian crest to the highest elevations of

9471-529: The driest sites are dominated by chestnut oak, or sometimes by scarlet or northern red oaks. In the northern Appalachians the oaks, except for white and northern red, drop out, while the latter extends farthest north. The oak forests generally lack the diverse small tree, shrub and herb layers of mesic forests. Shrubs are generally ericaceous , and include the evergreen mountain laurel ( Kalmia latifolia ), various species of blueberries ( Vaccinium spp.), black huckleberry ( Gaylussacia baccata ),

9594-496: The fight in Boston. Benedict Arnold shared the command with Allen, and, in early May 1775, they captured Fort Ticonderoga, Crown Point and the southern Loyalist settlement of Skenesborough . As a result of Allen's offensive attack on the Champlain Valley in 1775, the American forces controlled the Lake Champlain waterway. The Continental Army realized the strategic advantage of controlling Lake Champlain, as it leads directly to

9717-582: The first bridge to span the lake, built from Crown Point to Chimney Point . This bridge lasted until December 2009. Severe deterioration was found, and the bridge was demolished and replaced with the Lake Champlain Bridge , which opened in November 2011. On February 19, 1932, boats were able to sail on Lake Champlain. It was the first time that the lake was known to be free of ice during the winter at that time. Lake Champlain briefly became

9840-425: The folds and faults created many millions of years earlier. Other streams downcut so rapidly that they cut right across the resistant folded rocks of the mountain core, carving canyons across rock layers and geologic structures. The Appalachian Mountains contain major deposits of anthracite coal as well as bituminous coal . In the folded mountains the coal is in metamorphosed form as anthracite , represented by

9963-678: The following year. In this period, the Continental Army gained strength and was victorious at Saratoga . At the start of the Revolutionary War , British forces occupied the Champlain Valley . However, it did not take long for rebel leaders to realize the importance of controlling Lake Champlain. Early in the war, the colonial militias attempted to expel the British from Boston ; however, this undertaking could not be achieved without heavy artillery. The British forts at Ticonderoga and Crown Point , on Lake Champlain, were known to have ample supplies of artillery and were weakly-manned by

10086-429: The forces now in Canada will be brought down upon us as quick as possible, having nothing to oppose them...They will doubtless try to construct some armed vessels and then endeavor to penetrate the country toward New York." (Brigadier General John Sullivan to George Washington , June 24, 1776). Both British and American forces spent the summer of 1776 building their naval fleets, at opposite ends of Lake Champlain. By

10209-539: The heart of Quebec. Immediately after taking Forts Ticonderoga and Crown Point, the Americans began planning an attack on British Canada. The American siege of Quebec was a two-pronged assault and occurred throughout the winter of 1775–1776. Brigadier General Richard Montgomery led the first assault up the Champlain Valley into Canada, while Benedict Arnold led a second army to Quebec via the Maine wilderness. Despite

10332-564: The lake, Vermont and Quebec agreed to reduce their inputs by 60% and 40%, respectively, by an agreement signed in 2002. While agricultural sources (manure and fertilizers) are the primary sources of phosphorus (about 70%) in the Missisquoi basin, runoff from developed land and suburbs is estimated to contribute about 46% of the phosphorus runoff basin-wide to Lake Champlain, and agricultural lands contributed about 38%. Appalachian Mountains The Appalachian Mountains , often called

10455-485: The land mass that is now New England and southwestward to Pennsylvania. The Taconic Orogeny was the second of four mountain building plate collisions that contributed to the formation of the Appalachians, culminating in the collision of North America and Africa (see Alleghanian orogeny ). The third mountain-building event was the Acadian orogeny which occurred between 375 and 359 million years ago. The Acadian orogeny

10578-464: The landmark. The reef is an observable portion of the larger Chazy Formation which extends from Quebec to Tennessee . The location features an exposed Ordovician fossil reef, approximately 450 to 480 million years old, containing fossils from what was once a tropical marine environment. The site is recognized as the oldest known fossil reef that contains substantial biological diversity . Strata from successive periods of time may be viewed across

10701-694: The landscape due to the tilted orientation of the sedimentary rock layers. The presence of fossils from a continuous time series allow for the observation of faunal succession . On Isle La Motte, the oldest fossils occur at the southern end of the island, with progressively newer layers visible toward the island's north end. Among the preserved specimens are prehistoric stromatoporoids , gastropods , cephalopods , echinoderms , brachiopods , sponges , coral , bryozoa and stromatolites . Lake Champlain Lake Champlain ( / ʃ æ m ˈ p l eɪ n / sham- PLAYN ; French : Lac Champlain )

10824-475: The largest include Grand Isle , Isle La Motte and North Hero : all part of Grand Isle County, Vermont . Because of Lake Champlain's connections both to the St. Lawrence Seaway via the Richelieu River , and to the Hudson River via the Champlain Canal , Lake Champlain is sometimes referred to as "The Sixth Great Lake". The Champlain Valley is the northernmost unit of a landform system known as

10947-469: The latter. However, balsam fir also does well in soils with a pH as high as 6. Eastern or Canada hemlock ( Tsuga canadensis ) is another important evergreen needle-leaf conifer that grows along the Appalachian chain from north to south but is confined to lower elevations than red spruce and the firs. It generally occupies richer and less acidic soils than the spruce and firs and is characteristic of deep, shaded and moist mountain valleys and coves . It

11070-540: The microclimates that best suited them. The flora of the Appalachians are diverse and vary primarily in response to geology, latitude, elevation and moisture availability. Geobotanically, they constitute a floristic province of the North American Atlantic Region . The Appalachians consist primarily of deciduous broad-leaf trees and evergreen needle-leaf conifers, but also contain the evergreen broad-leaf American holly ( Ilex opaca ), and

11193-788: The more notable peaks in West Virginia. The Blue Ridge Mountains , rising in southern Pennsylvania and there known as South Mountain , attain elevations of about 2,000 ft (600 m) in Pennsylvania. South Mountain achieves its highest point just below the Mason-Dixon line in Maryland at Quirauk Mountain 2,145 ft (654 m) and then diminishes in height southward to the Potomac River . Once in Virginia ,

11316-787: The mountainous belt just north of the New River in Virginia. South of the New River, rivers head into the Blue Ridge, cross the higher Unakas, receive important tributaries from the Great Valley, and traversing the Cumberland Plateau in spreading gorges ( water gaps ), escape by way of the Cumberland River and the Tennessee River rivers to the Ohio River and the Mississippi River, and thence to

11439-429: The mountainous belt, and thus the main lines of drainage run from north to south, exemplified by the Hudson River . However, the valley through which the Hudson River flows was cut by the gigantic glaciers of the ice ages —the same glaciers that deposited their terminal moraines in southern New York and formed the east–west Long Island . The Appalachian region is generally considered the geographical divide between

11562-520: The nation's sixth Great Lake on March 6, 1998, when President Clinton signed Senate Bill 927. This bill, which was led by U.S. Senator Patrick Leahy of Vermont and reauthorized the National Sea Grant Program , contained a line declaring Lake Champlain to be a Great Lake. This status enabled its neighboring states to apply for additional federal research and education funds allocated to these national resources. However, following

11685-447: The northernmost end of Lake Champlain to protect against attacks from British Canada. Its nickname came from a surveying error: the initial phase of construction on the fort turned out to be taking place on a point 3 ⁄ 4  mi (1.2 km) north of the Canada–U.S. border. Once this error was spotted, construction was abandoned. Locals scavenged materials used in the abandoned fort for use in their homes and public buildings. By

11808-531: The northwest coastline of Newfoundland. The dissected plateau area, while not actually made up of geological mountains, is popularly called "mountains", especially in eastern Kentucky and West Virginia, and while the ridges are not high, the terrain is extremely rugged. In Ohio and New York, some of the plateau has been glaciated , which has rounded off the sharp ridges and filled the valleys to some extent. The glaciated regions are usually referred to as hill country rather than mountains. The Appalachian belt includes

11931-424: The oceans, but there were no plants or animals on land. Then, during the middle Ordovician Period about 500 to 470 million years ago, the motion of the crustal plates changed, and the continents began to move back toward each other. The once-quiet Appalachian passive margin changed to a very active plate boundary when a neighboring Iapetus oceanic plate containing a volcanic arc collided with and began sinking beneath

12054-662: The plateaus sloping southward to the Atlantic Ocean in New England , and southeastward to the border of the coastal plain through the central and southern Atlantic states; and on the northwest, the Allegheny and Cumberland plateaus declining toward the Great Lakes and the interior plains. A remarkable feature of the belt is the longitudinal chain of broad valleys, including the Great Appalachian Valley , which in

12177-414: The ports of Burlington, Vermont , Port Henry, New York , and Plattsburgh, New York , today are primarily used by small craft, ferries and lake cruise ships, they were of substantial commercial and military importance in the 18th and 19th centuries. New France allocated concessions all along Lake Champlain to French settlers and built forts to defend the waterways. In colonial times, Lake Champlain

12300-601: The region level. The lowest level of classification is "section". The Appalachian Uplands are one of the seven physiographic divisions in Canada . Canada's GSC does not use the same classification system as the USGS below the division level. The agency does break the divisions of the Appalachian Uplands into 13 subsections that are in four different political provinces of Canada. While the Appalachian Highlands and Appalachian Uplands are generally continuous across

12423-407: The relatively undeveloped coastline of the lake. The cities of Plattsburgh, New York , and Burlington, Vermont , are on the lake's western and eastern shores, respectively, and the town of Ticonderoga, New York , is in the southern part of the region. The Quebec portion is in the regional county municipalities of Le Haut-Richelieu and Brome-Missisquoi . There are a number of islands in the lake;

12546-454: The residents of the regions regarding the correct pronunciation. Elsewhere, a commonly accepted pronunciation for the adjective Appalachian is / ˌ æ p ə ˈ l æ tʃ i ə n / , with the last two syllables "-ian" pronounced as in the word "Romanian". Perhaps partly because the range runs through large portions of both the United States and Canada, and partly because the range was formed over numerous geologic time periods, one of which

12669-488: The result of volcanic activity that occurred around this time. Evidence of subsurface activity, dikes and sills intruding into the overlying rock, is present in the Blue Ridge as well. For instance, mafic rocks have been found along the Fries Fault in the central Blue Ridge area of Montgomery County, VA. The Iapetus continued to expand and during that time bacteria, algae, and many species of invertebrates flourished in

12792-534: The risks to humans from water-related health hazards and control the introduction, spread, and impact of non-native nuisance species to preserve the integrity of the Lake Champlain ecosystem. Senior staff who helped organize the Environmental Protection Agency in 1970 recall that International Paper was one of the first companies to call upon the brand-new agency, because it was being pressured by both New York and Vermont with regard to

12915-466: The rocks to be folded and faulted, creating the first mountains in the region. Many of the rocks and minerals that were formed during that event can currently be seen at the surface of the present Appalachian range. Around 480 million years ago, geologic processes began that led to three distinct orogenic eras that created much of the surface structure seen in today's Appalachians. During this period, mountains once reached elevations similar to those of

13038-725: The same side of the Great Valley, south of the Potomac, are the Pinnacle 3,007 feet (917 m) and Pidgeon Roost 3,400 ft (1,000 m). In West Virginia, more than 150 peaks rise above 4,000 ft (1,200 m), including Spruce Knob 4,863 ft (1,482 m), the highest point in the Allegheny Mountains . A number of other points in the state rise above 4,800 ft (1,500 m). Cheat Mountain ( Snowshoe Mountain ) at Thorny Flat 4,848 ft (1,478 m) and Bald Knob 4,842 ft (1,476 m) are among

13161-409: The same trend as the system itself. None of the summits reaches the region of perpetual snow. In Pennsylvania , there are over sixty summits that rise over 2,500 ft (800 m); the summits of Mount Davis and Blue Knob rise over 3,000 ft (900 m). In Maryland, Eagle Rock and Dans Mountain are conspicuous points reaching 3,162 and 2,882 ft (964 and 878 m) respectively. On

13284-669: The significance of Lake Champlain during the post-Revolutionary War period. During the War of 1812 , British and American forces faced each other in the Battle of Lake Champlain, also known as the Battle of Plattsburgh , fought on September 11, 1814. This ended the final British invasion of the northern states during the War of 1812. It was fought just prior to the signing of the Treaty of Ghent , and

13407-487: The southerly sections divides the mountain system into two unequal portions, but in the northernmost lies west of all the ranges possessing typical Appalachian features, and separates them from the Adirondack group. The mountain system has no axis of dominating altitudes, but in every portion, the summits rise to rather uniform heights, and, especially in the central section, the various ridges and intermontane valleys have

13530-416: The southern Appalachians, as in North Carolina and Tennessee . In the central Appalachians it is usually confined above 3,000 ft (900 m) asl, except for a few cold valleys in which it reaches lower elevations. In the southern Appalachians, it is restricted to higher elevations. Another species is the black spruce ( Picea mariana ), which extends farthest north of any conifer in North America,

13653-413: The southern and central Appalachians consist largely of black , northern red , white , chestnut and scarlet oaks ( Quercus velutina, Q. rubra, Q. alba, Q. prinus and Q. coccinea ) and hickories, such as the pignut ( Carya glabra ) in particular. The richest forests, which grade into mesic types, usually in coves and on gentle slopes, have predominantly white and northern red oaks, while

13776-511: The southern and central Appalachians at low and intermediate elevations. In the northern Appalachians and at higher elevations of the central and southern Appalachians these diverse mesic forests give way to less diverse northern hardwood forests with canopies dominated only by American beech, sugar maple, American basswood ( Tilia americana ) and yellow birch and with far fewer species of shrubs and herbs. Drier and rockier uplands and ridges are occupied by oak–chestnut forests dominated by

13899-410: The southern regions of the Appalachians, the word is pronounced / ˌ æ p ə ˈ l æ tʃ ɪ n z / , with the third syllable sounding like "latch". In northern parts of the mountain range, it is pronounced / ˌ æ p ə ˈ l eɪ tʃ ɪ n z / or / ˌ æ p ə ˈ l eɪ ʃ ɪ n z / ; the third syllable is like "lay", and the fourth "chins" or "shins". There is often great debate between

14022-544: The southernmost spur of the Blue Ridge Mountains. Sources written prior to the recognition of the concept of physiographic regions divided the Appalachian Mountains into three major sections: Plate tectonics over the period dating back at least 1 billion years led to geological creation of the land that is now the Appalachian Mountain range. The continental movement led to collisions that built mountains and they later pulled apart creating oceans over parts of

14145-421: The spring and summer of 1776, at opposite ends of the lake, and fought a significant naval engagement on October 11 at the Battle of Valcour Island . While it was a tactical defeat for the Americans, and the small fleet led by Benedict Arnold was almost destroyed, the Americans gained a strategic victory; the British invasion was delayed long enough so the approach of winter prevented the fall of these forts until

14268-544: The states of New York and Vermont . The lake is located at the frontier between Abenaki and Mohawk ( Iroquois Confederacy ) traditional territories. The official toponym for the lake, according to the orthography established by the Grand Council of Wanab-aki Nation, is Pitawbagok (alternative orthographies include Petonbowk and Bitawbagok), meaning "middle lake", "lake in between" or "double lake". The Mohawk name in modern orthography, as standardized in 1993,

14391-504: The strategic advantage of controlling a direct route to Quebec by way of the Champlain Valley, the American siege of British Canada during the winter of 1775 failed. The Continental Army mistakenly assumed that it would receive support from the Canadians upon their arrival at Quebec. This was not the case, and the rebel army struggled to take Quebec with diminishing supplies, support, and harsh northern winter weather. The Continental Army

14514-537: The term Appalachian Highlands and Canada uses the term Appalachian Uplands ; the Appalachian Mountains are not synonymous with the Appalachian Plateau , which is one of the provinces of the Appalachian Highlands. The Appalachian range runs from the Island of Newfoundland in Canada, 2,050 mi (3,300 km) southwestward to Central Alabama in the United States; south of Newfoundland, it crosses

14637-691: The two main crests. Major subranges of the Eastern Front include the Black Mountains , Great Craggy Mountains , and Great Balsam Mountains , and its chief summits include Grandfather Mountain 5,964 ft (1,818 m) near the Tennessee-North Carolina border, Mount Mitchell 6,684 ft (2,037 m) in the Blacks, and Black Balsam Knob 6,214 ft (1,894 m) and Cold Mountain 6,030 ft (1,840 m) in

14760-661: Was caused by a series of collisions of pieces of crust from the Avalonia Terrane, sections broken off from continent of Gondwana , with the North American Plate. The collision initiating this orogeny resulted in the closing of the southern Iapetus Ocean and the formation of a high mountain belt. After the Acadian collision took place, Gondwana began to retreat from Laurentia with the newly accreted Avalonian terranes left behind. As Gondwana moved away,

14883-473: Was forced to camp outside Quebec's walls for the winter, with reinforcements from New York, Pennsylvania , Massachusetts , New Hampshire and Connecticut allowing the soldiers to maintain their siege of the city. However, smallpox descended on both the sieging forces and their reinforcements and savaged the American force. The reinforcements traveled hundreds of miles up the frozen Lake Champlain and St. Lawrence River, but were too late and too few to influence

15006-541: Was instrumental to the momentum of the Revolutionary War, as the defeat of the British army along the Champlain-Hudson waterway convinced France to ally with the American army. Following the failed British campaign led by General Burgoyne, the British still maintained control over the Champlain waterway for the duration of the Revolutionary War. The British used the Champlain waterway to supply raids across

15129-544: Was used as a water (or, in winter, ice) passage between the Saint Lawrence and Hudson valleys. Travelers found it easier to journey by boats and sledges on the lake rather than go overland on unpaved and frequently mud-bound roads. The lake's northern tip at Saint-Jean-sur-Richelieu , Quebec (known as St. John in colonial times under British rule) is just 25 miles (40 km) from Montreal , Quebec. The southern tip at Whitehall (Skenesborough in revolutionary times)

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