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73-562: The Thousand Islands in the Saint Lawrence River have a distinctive flora and fauna and are a part of the biological corridor. The bedrock is mostly gneiss , granite , and marble , more than a billion years old. The Frontenac terrain is the youngest of the Ontario portions of the arch, dated at 1.2 billion years old. These rocks were once part of a large mountain chain of the ancient supercontinent of Rodinia . There

146-768: A French spelling of the Mohawk Katarokwi . The lake was a border between the Huron people and the Iroquois Confederacy in the pre-Columbian era . In the 17th century, the Iroquois drove out the Huron from southern Ontario and settled the northern shores of Lake Ontario . When the Iroquois withdrew and the Anishnabeg / Ojibwa / Mississaugas moved in from the north to southern Ontario, they retained

219-511: A North American archipelago of 1,864 islands that straddles the Canada–US border in the Saint Lawrence River as it emerges from the northeast corner of Lake Ontario . They stretch for about 50 miles (80 km) downstream from Kingston, Ontario . The Canadian islands are in the province of Ontario and the U.S. islands in the state of New York . The islands range in size from over 40 square miles (100 km ) to smaller islands occupied by

292-991: A maximum depth of 133 fathoms 4 feet (802 ft; 244 m). The lake's primary source is the Niagara River, draining Lake Erie, with the Saint Lawrence River serving as the outlet. The drainage basin covers 24,720 square miles (64,030 km ). As with all the Great Lakes, water levels change both within the year (owing to seasonal changes in water input) and among years (owing to longer-term trends in precipitation). These water level fluctuations are an integral part of lake ecology and produce and maintain extensive wetlands. The lake also has an important freshwater fishery, although it has been negatively affected by factors including overfishing , water pollution and invasive species . Baymouth bars built by prevailing winds and currents have created

365-465: A significant number of lagoons and sheltered harbors, mostly near (but not limited to) Prince Edward County, Ontario , and the easternmost shores. Perhaps the best-known example is Toronto Bay , chosen as the site of the Upper Canada capital for its strategic harbor. Other prominent examples include Hamilton Harbour , Irondequoit Bay , Presqu'ile Bay , and Sodus Bay . The bars themselves are

438-475: A single residence, or uninhabited outcroppings of rocks. To count as one of the Thousand Islands, emergent land within the river channel must have at least one square foot (0.093 m ) of land above water level year-round, and support at least two living trees. The Thousand Islands archipelago is at the outlet of Lake Ontario at the head of the Saint Lawrence River . The region is bisected by

511-629: Is a privately owned, private-use general aviation airport two nautical miles (3.7 km; 2.3 mi) south of the central business district of Alexandria Bay, a village in Jefferson County, New York. It once had commercial service provided by Mohawk Airlines. At that time, the airport bore the IATA airport code AXB. Maxson is available to the public by Maxson Airfield, LLC. Brockville-Thousand Islands Regional Tackaberry Airport (IATA: XBR, TC LID: CNL3), also known as Brockville Municipal Airport,

584-598: Is a registered aerodrome in Elizabethtown-Kitley Township, 4.8 nautical miles (8.9 km; 5.5 mi) northwest of the city of Brockville, Ontario, Canada. According to The Oxford Companion of Food and Drink , the name for Thousand Island dressing "presumably comes from the Thousand Islands between the United States and Canada in the St. Lawrence River." However, several different versions of

657-456: Is a wide array of wetlands, ranging from larger marshes along the St. Lawrence river, to smaller marshes and bogs along water courses, and large numbers of beaver ponds. The cycles in vegetation in beaver ponds contribute to further wetland diversity; depending upon the amount of beaver activity, there may be open water, marsh, wet meadows or shrub thickets. Some lakes in the area, such as Bob's Lake, also support uncommon species of turtles, such as

730-463: Is accompanied by the invasion of cattails , which displace many of the native plant species and reduce plant diversity. Eutrophication may accelerate this process by providing nitrogen and phosphorus for the more rapid growth of competitively dominant plants. Similar effects are occurring on the north shore, in wetlands such as Presqu'ile, which have interdunal wetlands called pannes , with high plant diversity and many unusual plant species. Most of

803-517: Is also a meteor crater near Holleford , where the shield meets the limestone plains of southeastern Ontario. The area is distinctive for having tree species typically found further south, and reaching their northern limits. One example is pitch pine ( Pinus rigida ). Shallow soils and recurring fire have also produced unusual fire barren communities. These provide habitat for rare plants, such as bear oak ( Quercus ilicifolia ) and deerberry ( Vaccinium stamineum ), as well as rare animals, such as

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876-616: Is available in both Ontario and New York. Watertown International Airport (ART) in Watertown, New York has daily service on American Airlines connecting through Philadelphia (PHL). Norman Rogers Airport (YGK) in Kingston, Ontario offers service on FlyGTA Airlines connecting through Billy Bishop Toronto City Airport as well as service out of Montréal–Trudeau International Airport via Pascan Aviation . Both airports also offer private aviation services. Maxson Airfield (FAA LID: 89NY)

949-489: Is one of the five Great Lakes of North America. It is bounded on the north, west, and southwest by the Canadian province of Ontario , and on the south and east by the U.S. state of New York . The Canada–United States border spans the centre of the lake. The Canadian cities of Hamilton , Kingston , Mississauga , and Toronto are located on the lake's northern shorelines, while the Canadian city of St. Catharines and

1022-455: Is small, it has many Frontenac Arch species mentioned above, including deerberry, Blanding's turtle, and five-lined skinks. Further north, there is still a large gap in the ecological link to Algonquin Park . In this gap are smaller parks such as Frontenac Provincial Park and Bon Echo Provincial Park . Thousand Islands The Thousand Islands ( French : Mille-Îles ) constitute

1095-402: Is so clear in some areas a rocky bottom can be observed in 80 feet (24 m) of water. The area has several shipwrecks, and although most are over 100 feet (30 m) underwater, some are a mere 15 feet (4.6 m) down and can be seen from the surface. The single largest city in the region is Kingston, Ontario , which has a metropolitan population of more than 170,000 (2021). The city marks

1168-526: Is the Z-shaped Bay of Quinte which separates Prince Edward County from the Ontario mainland, save for a 2-mile (3.2 km) isthmus near Trenton; this feature also supports many wetlands and aquatic plants, as well as associated fisheries. Major rivers draining into Lake Ontario include the Niagara River, Don River , Humber River , Rouge River , Trent River , Cataraqui River , Genesee River , Oswego River , Black River , Little Salmon River , and

1241-472: Is within Jefferson County : In Ontario, Canada This region includes the southern areas of Frontenac  and Leeds & Grenville counties: O boating on the rivers, The voyage down the St. Lawrence, the superb scenery, the steamers, The ships sailing, the Thousand Islands, the occasional timber-raft and the raftsmen with long-reaching sweep-oars, The little huts on the rafts, and

1314-700: The American Revolution with the influx of Loyalist settlers. During the War of 1812, the Royal Navy and US Navy had fought in several engagements for control of Lake Ontario . The Great Lakes, including Lake Ontario, were largely demilitarized after the Rush–Bagot Treaty was ratified in 1818. The lake became a hub of commercial activity following the War of 1812 with canal building on both sides of

1387-736: The Canada–United States border and covers portions of Jefferson and St. Lawrence counties in the U.S. state of New York , in addition to parts of the United Counties of Leeds and Grenville and Frontenac County in the Canadian province of Ontario. Geologically , most of the islands are where a branch of the Canadian Shield , known as the Thousand Islands – Frontenac Arch region, runs south across

1460-475: The Canadian Museum of History ), created by military engineer Jean-Baptiste de Couagne , identified Lake Ontario as "Lac Frontenac" named after Louis de Buade, Comte de Frontenac et de Palluau. He was a French soldier, courtier, and Governor General of New France from 1672 to 1682 and from 1689 to his death in 1698. In the 17th century, reports of an alleged creature named Gaasyendietha , similar to

1533-488: The Moses-Saunders Power Dam regulates the water level of the lake. Lake Ontario is the easternmost of the Great Lakes and the smallest in surface area (7,340 sq mi, 19,000 km ), although it exceeds Lake Erie in volume (393 cu mi, 1,640 km ). It is the 13th largest lake in the world . When its islands are included, the lake's shoreline is 712 miles (1,146 km) long. As

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1606-717: The Native American peoples of the Haudenosaunee Confederacy . The National Oceanic and Atmospheric Administration 's Office of National Marine Sanctuaries and the Government of New York jointly administer the sanctuary. Lake Ontario is the site of several major commercial ports including the Port of Toronto and the Port of Hamilton . Hamilton Harbour is the location of major steel production facilities. The government of Ontario , which holds

1679-716: The Niagara Peninsula is a major fruit-growing and wine-making area. The wine-growing region extends over the international border into Niagara and Orleans counties in New York. Apple varieties that tolerate a more extreme climate are grown on the lake's north shore, around Cobourg . The Great Lakes watershed is a region of high biodiversity, and Lake Ontario is important for its diversity of birds, fish, reptiles, amphibians, and plants. Many of these special species are associated with shorelines, particularly sand dunes, lagoons, and wetlands. The importance of wetlands to

1752-520: The Salmon River . The lake basin was carved out of soft, weak Silurian -age rocks by the Wisconsin ice sheet during the last ice age . The action of the ice occurred along the pre-glacial Ontarian River valley which had approximately the same orientation as today's basin. Material that was pushed southward by the ice sheet left landforms such as drumlins , kames , and moraines , both on

1825-833: The Thousand Islands Parkway in Ontario. Ontario also has the Waterfront Trail alongside the Parkway for cyclists who wish to see the area in an alternative way. Seawaymax lake freighters often ply the Saint Lawrence Seaway . As is usual in inland waters of the United States and Canada, vessels must use maritime pilots to help them travel safely. In places, a vessel less than 25 feet (7.6 m) offshore can find itself in over 200 feet (61 m) of water. Conversely, rocks and shoals less than two feet (61 cm) underwater can be found in

1898-546: The Waldorf-Astoria Hotel , instructed the hotel's maître d'hôtel , Oscar Tschirky , to put the dressing on the menu in 1894. Sociologists attempting to determine the true origin of Thousand Island dressing found several conflicting origin stories exist, and they vary between the various islands and villages of the Thousand Islands region. None appear to have any strong written evidence to support their specific claims. Lake Ontario Lake Ontario

1971-508: The map turtles and Blanding's turtles . Where there is marble bedrock, or other sources of calcium, fens may arise. These often have unusual calcium dependent wetland plants. A southern portion of this region was designated a Biosphere Reserve by UNESCO in 2002, the Frontenac Arch Biosphere Reserve . Within this biosphere reserve is the relatively small St. Lawrence Islands National Park . Although it

2044-505: The 32-mile (52-km) crossing from Niagara-on-the-Lake to Marilyn Bell Park in just under 27 hours. A large conurbation called the Golden Horseshoe occupies the lake's westernmost shores, anchored by the cities of Toronto and Hamilton. Ports on the Canadian side include St. Catharines, Oshawa, Cobourg and Kingston, near the St. Lawrence River outlet. Close to 9 million people, or over a quarter of Canada's population, live within

2117-607: The American city of Rochester are located on the south shore. In the Huron language, the name Ontarí'io means "great lake". Its primary inlet is the Niagara River from Lake Erie . The last in the Great Lakes chain, Lake Ontario serves as the outlet to the Atlantic Ocean via the Saint Lawrence River , comprising the western end of the Saint Lawrence Seaway . The Long Sault control dam , primarily along with

2190-517: The Atlantic. The shoreline created during this stage can be easily recognized by the (now dry) beaches and wave-cut hills 10 to 25 miles (16 to 40 km) from the present shoreline. When the ice finally receded from the St. Lawrence valley, the outlet was below sea level , and for a short time, the lake became a bay of the Atlantic Ocean, in association with the Champlain Sea . Gradually

2263-521: The British Empire and the United States. Many sites from the war can be found, such as Fort Wellington in Prescott, Ontario and the garrison on Chimney Island, Mallorytown, Ontario. Museums about the war can be found on both the Canadian and American side of the river. In the late 19th and early 20th centuries, many distinguished visitors made the region widely known as a summer resort. During

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2336-463: The Iroquois name. Artifacts believed to be of Norse origin have been found in the area of Sodus Bay , indicating the possibility of trading by the indigenous peoples with Norse explorers on the east coast of North America. It is believed the first European to reach the lake was Étienne Brûlé in 1615. As was their practice, the French explorers introduced other names for the lake. In 1632 and 1656,

2409-608: The Ottawa River in downtown Ottawa , Ontario. Several lighthouses exists throughout the lake to help with navigation. Notable historic examples include: A land-based trail that roughly follows the lake's shoreline also exists, the Great Lakes Circle Tour and Seaway Trail . The designated scenic road systems connects all of the Great Lakes and the St. Lawrence River. As the Seaway Trail is posted on

2482-444: The U.S. side only, Lake Ontario is the only of the five Great Lakes to have no posted bi-national circle tour. The Lake Ontario National Marine Sanctuary covers 1,722 square miles (1,300 sq nmi; 4,460 km ) in U.S. waters in southeastern Lake Ontario. Designated on September 6, 2024, the national marine sanctuary protects historic shipwrecks and an area of great cultural, historical, and spiritual importance to

2555-591: The United States, population centres here are among the oldest in the Great Lakes basin, with Kingston, Ontario , formerly the capital of Canada , dating to the establishment of Fort Frontenac in 1673. After the French and Indian War , all forts around the lake were under British control. The United States took possession of the forts along the American side of the lake at the signing of the Jay Treaty in 1794. Permanent, non-military European settlement began during

2628-628: The area between Oswego and Pulaski may receive twenty or more feet (600 cm) of snowfall. Also impacted by lake-effect snow is the Tug Hill Plateau , an area of elevated land about 20 miles (32 km) east of Lake Ontario. The "Hill", as it is often referred to, typically receives more snow than any other region in the eastern United States . As a result, Tug Hill is a popular location for winter enthusiasts, such as snow-mobilers and cross-country skiers. Lake-effect snow often extends inland as far as Syracuse , with that city often recording

2701-439: The area for use in construction, particularly in the growing city of Toronto. As of 2012 , nearly 50 people have successfully swum across the lake. The first person who accomplished the feat was a Canadian long distance swimmer Marilyn Bell , who did it in 1954 at age 16. Toronto's Marilyn Bell Park is named in her honour. The park opened in 1984 and is east of the spot where Bell completed her swim. In 1974, Diana Nyad became

2774-413: The border and heavy travel by lake steamers. Steamer activity peaked in the mid-19th century before competition from railway lines. In the late 19th and early 20th centuries, a type of scow known as a stone hooker was in operation on the northwest shore, particularly around Port Credit and Bronte . Stonehooking was the practice of raking flat fragments of Dundas shale from the shallow lake floor of

2847-459: The center of otherwise deep waters. Due to the great number of rocks and shoals just above or below the water's surface, navigation outside of the marked channels at night can be dangerous. Before the introduction of the zebra mussel , visibility of only 10 to 15 feet (3.0 to 4.6 m) was usual, slightly decreasing as the years passed. Water clarity improved markedly in the mid-1990s with the arrival of zebra mussels, which feed on algae. The water

2920-405: The dressing's origin exist. One common story describes how a fishing guide's wife, Sophia LaLonde, made the condiment as part of her husband George's shore dinner. Often in this version, actress May Irwin requested the recipe after enjoying it. Irwin in turn gave it to another Thousand Islands summer resident, George Boldt , who built Boldt Castle between 1900 and 1904. Boldt, as proprietor of

2993-549: The eastern and northeastern shores, between the Prince Edward County headland and the lake's outlet at Kingston, underlain by the basement rock found throughout the region. However, there exist several islands in the northwestern portion of the lake. Notable islands include: The Great Lakes Waterway connects the lake sidestream to the Atlantic Ocean via the Saint Lawrence Seaway and upstream to

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3066-413: The first person who swam across the lake against the current (from north to south). On August 28, 2007, 14-year-old Natalie Lambert from Kingston, Ontario, made the swim, leaving Sackets Harbor, New York, and reaching Kingston's Confederation basin less than 24 hours after she entered the lake. On August 19, 2012, 14-year-old Annaleise Carr became the youngest person to swim across the lake. She completed

3139-504: The five-lined skink ( Plestiodon fasciatus ) and gray rat snake ( Pantherophis spiloides ). There is high bird diversity, including the cerulean warbler , considered nationally endangered owing to the destruction of forests. Although the most important factor producing the fauna and flora is likely the bed rock, the moderating effect of the Great Lakes may also be factor. Also, some northern species extend their range south, drawn by

3212-727: The forests around the lake are deciduous forests dominated by trees including maple, oak, beech, ash and basswood. These are classified as part of the Mixedwood Plains Ecozone by Environment Canada, or as the Eastern Great Lakes and Hudson Lowlands by the United States Environmental Protection Agency , or as the Great Lakes Ecoregion by The Nature Conservancy. Deforestation in the vicinity of

3285-570: The frost danger is past, and in the autumn delay the onset of fall frost, particularly on the south shore. Cool onshore winds also slow the early bloom of plants and flowers until later in the spring season, protecting them from possible frost damage. Such microclimatic effects have enabled tender fruit production in a continental climate, with the southwest shore supporting a major fruit-growing area. Apples , cherries , pears , plums , and peaches are grown in many commercial orchards around Rochester. Between Stoney Creek and Niagara-on-the-Lake on

3358-419: The half century (1874–1912) of the resort's greatest prominence, most wealthy vacationers came from New York City , joined by prominent families from Chicago , Cleveland , Pittsburgh and other cities of the United States and Canada. Several grand hotels provided luxurious accommodations while steamboats offered extensive tours among the islands. Wealthy and middle-class summer residents built summer homes, and

3431-401: The ice. The lake has completely frozen over on five recorded occasions: in 1830, 1874, 1893, 1912, and 1934. When the cold winds of winter pass over the warmer water of the lake, they pick up moisture and drop it as lake-effect snow . Since the prevailing winter winds are from the northwest, the southern and southeastern shoreline of the lake is referred to as the snowbelt . In some winters,

3504-419: The importance of maintaining and restoring forest cover, particularly along streams and wetlands. By the 1960s and 1970s, the increased pollution caused frequent algal blooms to occur in the summer. These blooms killed large numbers of fish, and left decomposing piles of filamentous algae and dead fish along the shores. Lake Ontario is the most downstream lake of the Great Lakes, so the pollution from all

3577-426: The lake area typically develops, depending on the severity of the winter. Ice sheets typically form along the shoreline and in slack water bays, where the lake is not as deep. During the winters of 1877 and 1878, the ice sheet coverage was up to 95–100% of the lake. During the War of 1812 , the ice cover was stable enough the American naval commander stationed at Sackets Harbor feared a British attack from Kingston, over

3650-602: The lake has been appreciated, and many of the larger wetlands have protected status. These wetlands are changing, partly because the natural water level fluctuations have been reduced. Many wetland plants are dependent upon low water levels to reproduce. When water levels are stabilized, the area and diversity of the marsh is reduced. This is particularly true of meadow marsh (also known as wet meadow wetlands); for example, in Eel Bay near Alexandria Bay, regulation of lake levels has resulted in large losses of wet meadow. Often this

3723-399: The lake has had many negative impacts, including loss of forest birds, extinction of native salmon, and increased amounts of sediment flowing into the lake. In some areas, more than 90 percent of the forest cover has been removed and replaced by agriculture. Certain tree species, such as hemlock, have also been particularly depleted by past logging activity. Guidelines for restoration stress

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3796-472: The lake was referred to as Lac de St. Louis or Lake St. Louis by Samuel de Champlain and cartographer Nicolas Sanson respectively. In 1660, Jesuit historian Francis Creuxius coined the name Lacus Ontarius . In a map drawn in the Relation des Jésuites (1662–1663), the lake bears the legend "Lac Ontario ou des Iroquois" with the name "Ondiara" in smaller type. A French map produced in 1712 (currently in

3869-786: The lakebed rights of the Canadian portion of the lake under the Beds of Navigable Waters Act, does not permit wind power to be generated offshore. In Trillium Power Wind Corporation v. Ontario (Natural Resources) , the Superior Court of Justice held Trillium Power—since 2004 an "Applicant of Record" who had invested $ 35,000 in fees and, when in 2011 the Crown made a policy decision against offshore windfarms, claimed an injury of $ 2.25 billion—disclosed no reasonable cause of action. The Great Lakes once supported an industrial-scale fishery, with record hauls in 1899; overfishing later blighted

3942-481: The land rebounded from the release of the weight of about 6,500 feet (2,000 m) of ice that had been stacked on it. It is still rebounding about 12 inches (30 cm) per century in the St. Lawrence area. Since the ice receded from the area last, the most rapid rebound still occurs there. This means the lake bed is gradually tilting southward, inundating the south shore and turning river valleys into bays . Both north and south shores experience shoreline erosion, but

4015-440: The last lake in the Great Lakes' hydrologic chain, Lake Ontario has the lowest mean surface elevation of the lakes at 243 feet (74 m) above sea level; 326 feet (99 m) lower than its neighbor upstream. Its maximum length is 193 statute miles (311 kilometres ; 168 nautical miles ), and its maximum width is 53 statute miles (85 km; 46 nmi). The lake's average depth is 47 fathoms 1 foot (283 ft; 86 m), with

4088-446: The late 19th and early 20th century as part of the St. Lawrence Reservation , and were among New York's earliest land acquisitions for the purpose of preservation and recreational development. Among the larger parks are Wellesley Island State Park , which includes the largest camping complex in the region, and Robert Moses State Park . Passenger air service to the Thousand Islands region

4161-525: The modern land surface and the lake bottom, reorganizing the region's entire drainage system. As the ice sheet retreated toward the north, it still dammed the St. Lawrence Valley outlet, so the lake surface was at a higher level. This stage is known as Lake Iroquois . During that time the lake drained through present-day Syracuse, New York , into the Mohawk River , thence to the Hudson River and

4234-507: The most winter snowfall accumulation of any large city in the United States. Other cities in the world receive more snow annually, such as Quebec City , which averages 135 inches (340 cm), and Sapporo , Japan, which receives 250 inches (640 cm) each year and is often regarded as the snowiest city in the world. Foggy conditions (particularly in fall) can be created by thermal contrasts and can be an impediment for recreational boaters. Lake breezes in spring tend to slow fruit bloom until

4307-586: The oldest of Canada's national parks east of the Rocky Mountains . The park hosts campgrounds, inland walking trails, annual family events, as well as a national heritage building. Thirty New York state parks are managed as part of the New York State Office of Parks, Recreation and Historic Preservation 's Thousand Islands Region, including many on river islands or along the New York shore. Many of these river parks were established in

4380-487: The other lakes flows into it. Lake Ontario was ranked as the most environmentally stressed amongst the five Great Lakes in a 2015 ecological study. Some of the stresses on the lake include excess application of fertilizers in agriculture running into the lake, spillover from obsolete municipal sewage systems , toxic chemicals from industries along the rivers that drain into the lake, and metropolitan drainage from big cities like Toronto, Rochester, and Hamilton. Randle Reef ,

4453-697: The other rivers in the chain via the Welland Canal and to Lake Erie. The Trent-Severn Waterway for pleasure boats connects Lake Ontario at the Bay of Quinte to Georgian Bay (Lake Huron) via Lake Simcoe . The Oswego Canal connects the lake at Oswego to the New York State Canal System , with outlets to the Hudson River, Lake Erie, and Lake Champlain . The Rideau Canal , also for pleasure boats, connects Lake Ontario at Kingston to

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4526-433: The previously long-neglected Boldt Castle on Heart Island , which had been left unfinished for over 75 years upon the untimely death of George Boldt 's wife. It has since been completed over the recent decades in accord with Boldt's original plans. The Thousand Islands have long been a center for recreational boating. Large steam yachts, many designed by Nathanael Herreshoff , required distinctive yacht houses. The region

4599-420: The region retains a historically important collection of vacation homes from this time. Among the lavish homes built during this time were several masonry "castles", some of which remain as international landmarks. The region's first castle, Castle Rest , was built in 1888; it was destroyed in the mid-20th century. The most famous extant examples are "The Towers" on Dark Island , now called Singer Castle , and

4672-469: The river to join with the Adirondacks . This region was designated a World Biosphere Reserve by UNESCO in 2002. The Thousand Islands Bridge connects New York State and Ontario by traversing Wellesley Island at the northernmost point of Interstate 81 in Jefferson County and meets Highway 137 , which leads to Highway 401 . The waterfront is served by New York State Routes 12 and 37 and by

4745-806: The rugged granite landscapes of the Canadian Shield. The basic ecosystem type of the area is temperate deciduous forest . The area has a long history of logging, which has depleted these forests of larger trees. Settlement tends to have occurred in the areas of deeper soil, and fire has particularly influenced the uplands. Reference to the forest descriptions of early surveyors has documented decline in species such as hemlock, which were preferentially removed for leather tanning. Criteria for restoring these forests have been established, and include increased tree size, spring ephemeral abundance, and coarse woody debris. Pollen cores from Lanark County provide information about longer term trends in forest cover. There

4818-404: The sites of long beaches, such as Sandbanks Provincial Park and Sandy Island Beach State Park . These sand bars are often associated with large wetlands , which support large numbers of plant and animal species, as well as providing important rest areas for migratory birds. Presqu'ile, on the north shore of Lake Ontario, is particularly significant in this regard. One unique feature of the lake

4891-477: The so-called Loch Ness Monster , being sighted in the lake. The creature is described as large with a long neck, green in colour, and generally causes a break in the surface waves. A series of trading posts were established by both the British and French, such as Fort Frontenac in 1673, Fort Oswego in 1722, and Fort Rouillé in 1750. As the easternmost and nearest lake to the Atlantic seaboard of Canada and

4964-547: The stream of smoke when they cook supper at evening. Walt Whitman , "A Song of Joys", from Leaves of Grass (1855) Prior to European colonization, the Thousand Islands region was home to, or visited by, members of the Iroquois Confederacy and Ojibwa people . Their name for the islands was Manitouana or the "Garden of the Great Spirit". The region was a part of the War of 1812 between

5037-446: The tilting amplifies this effect on the south shore, causing loss to property owners. The lake has a natural seiche rhythm of eleven minutes. The seiche effect normally is only about 3 ⁄ 4 inch (1.9 cm) but can be greatly amplified by earth movement, winds, and atmospheric pressure changes. Because of its great depth, the lake as a whole does not completely freeze in winter, but an ice sheet covering between 10% and 90% of

5110-599: The watershed of Lake Ontario. The American shore is largely rural, with the exception of Rochester and the much smaller ports at Oswego and Sackets Harbor. The city of Syracuse is 40 miles (64 km) inland, connected to the lake by the New York State Canal System. Over 2 million people live in Lake Ontario's American watershed. Several islands exist in the lake, the largest of which being Wolfe Island . Nearly all of Lake Ontario's islands are on

5183-523: The western end of the region in Canada, while Brockville , Ontario, to the east, is the other large population center. The American region along the river is much less dense; the largest city is Watertown, New York , which has a population of 25,000 (2020) and is twenty miles (32 km) inland. There are a number of seasonal communities which grow significantly in the summer, like Thousand Island Park in New York. In New York, United States This region

5256-408: The westernmost part of Lake Ontario, has been identified as one of the most contaminated areas on Lake Ontario alongside other areas of concern on Great Lakes . However, a $ 150-million cleanup project had begun in 2016 and is expected to be completed by 2025. The name Ontario is derived from the Huron word Ontarí'io , which means "great lake". In Colonial times, the lake was also called Cataraqui ,

5329-639: Was known also for innovative power boating during this period. Three local yacht clubs hosted the Gold Cup Races of the American Power Boat Association for nine consecutive years. To be considered an island, a piece of land must stay above water throughout the year and support a living tree. Many of the islands are publicly owned. A group of 21 islands form the Thousand Islands National Park ,

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