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100-581: The wilderness was originally designated the Alpine Lakes Limited Area in 1946, but this designation did not offer protection from resource extractions and was exclusively regulated by the United States Forest Service . The region and adjacent areas were being extensively used for mining , timber extraction , and fur trapping leading to roads, clear cuts and ecological degradation. Efforts to further protect

200-604: A Colorado congressman, gave Congress and not federal land agencies the ability to propose, debate, and vote on new wilderness designations. After exhausting debates, public meetings and with even a request by the Forest Service to veto, President Ford signed the Alpine Lakes Area Management Act into law on the afternoon of July 12, 1976, reportedly saying "anywhere so beautiful should be preserved." Following this designation four properties in

300-402: A U.S. Forest Service firefighter who (along with his crew) watches over a group of rambunctious children while searching for their parents after rescuing them from a fire in the wilderness during a family vacation. The history of the Forest Service has been fraught with controversy, as various interests and national values have grappled with the appropriate management of the many resources within

400-732: A collisional orogeny). Orogeny typically produces orogenic belts or orogens , which are elongated regions of deformation bordering continental cratons (the stable interiors of continents). Young orogenic belts, in which subduction is still taking place, are characterized by frequent volcanic activity and earthquakes . Older orogenic belts are typically deeply eroded to expose displaced and deformed strata . These are often highly metamorphosed and include vast bodies of intrusive igneous rock called batholiths . Subduction zones consume oceanic crust , thicken lithosphere, and produce earthquakes and volcanoes. Not all subduction zones produce orogenic belts; mountain building takes place only when

500-530: A decrease of $ 530 million from the 2019 Annualized Continuing Resolution because the "fire fix" cap adjustment becomes available in FY 2020, while the FY 2019 Annualized Continuing Resolution includes $ 500 million above the base as bridge to the first year of the fire fix. The Forest Service, headquartered in Washington, D.C., has 27,062 permanent, full-time employees as of Sept. 20, 2018, including 541 in

600-506: A delamination of the orogenic root beneath them. Mount Rundle on the Trans-Canada Highway between Banff and Canmore provides a classic example of a mountain cut in dipping-layered rocks. Millions of years ago a collision caused an orogeny, forcing horizontal layers of an ancient ocean crust to be thrust up at an angle of 50–60°. That left Rundle with one sweeping, tree-lined smooth face, and one sharp, steep face where

700-472: A grassroots campaign to remove the unilateral decision-making authority away from the Forest Service. In addition, there was much criticism by conservationists that recreational usage should not be exclusive to the upper alpine terrain as the regional forestry leadership advocated saving the lower forests for possible timber sales. A powerful and key amendment to the Wilderness Act by Wayne Aspinall ,

800-671: A key role in formulating policy and coordinating U.S. support for the protection and sound management of the world's forest resources. It works closely with other agencies such as USAID , the State Department , and the Environmental Protection Agency , as well as with nonprofit development organizations, wildlife organizations, universities, and international assistance organizations. The Forest Service's international work serves to link people and communities striving to protect and manage forests throughout

900-589: A major continent-continent collision, is called an accretionary orogen. The North American Cordillera and the Lachlan Orogen of southeast Australia are examples of accretionary orogens. The orogeny may culminate with continental crust from the opposite side of the subducting oceanic plate arriving at the subduction zone. This ends subduction and transforms the accretional orogen into a Himalayan -type collisional orogen. The collisional orogeny may produce extremely high mountains, as has been taking place in

1000-412: A noncollisional orogenic belt, and such belts are sometimes called Andean-type orogens . As subduction continues, island arcs , continental fragments , and oceanic material may gradually accrete onto the continental margin. This is one of the main mechanisms by which continents have grown. An orogen built of crustal fragments ( terranes ) accreted over a long period of time, without any indication of

1100-442: A pronounced linear structure resulting in terranes or blocks of deformed rocks, separated generally by suture zones or dipping thrust faults . These thrust faults carry relatively thin slices of rock (which are called nappes or thrust sheets, and differ from tectonic plates ) from the core of the shortening orogen out toward the margins, and are intimately associated with folds and the development of metamorphism . Before

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1200-754: A range of biological, physical, and social science fields to promote sustainable management of United States' diverse forests and rangelands. Research employs about 550 scientists and several hundred technical and support staff, located at 67 sites throughout the United States and in Puerto Rico . Discovery and technology development and transfer is carried out through seven research stations. Research focuses on informing policy and land management decisions and includes addressing invasive insects, degraded river ecosystems , or sustainable ways to harvest forest products. The researchers work independently and with

1300-680: A range of partners (formerly through a National Partnership Office ), including other agencies, academia, nonprofit groups, and industry. The information and technology produced through basic and applied science programs is available to the public for its benefit and use. In addition to the Research Stations, the USFS R&;D branch also leads several National Centers such as the National Genomics Center for Wildlife and Fish Conservation . The Forest Service plays

1400-635: A regular and recurring presence on a vast amount of public lands, roads, and recreation sites. The primary focus of their jobs is the protection of natural resources, protection of Forest Service employees and the protection of visitors. To cover the vast and varied terrain under their jurisdiction, they use modified 4x4 pickup trucks, Ford Crown Victoria Police Interceptors , special service SUVs , horses, K-9 units , helicopters, snowmobiles , dirt bikes, and boats. Special Agents are criminal investigators who plan and conduct investigations concerning possible violations of criminal and administrative provisions of

1500-525: A short history of how agency responsibilities have grown and evolved over its 118-year history in accordance with "what the American people desire from their natural resources at any given point in time." In the spring of 2023, the USDA proposed a change to its regulations to allow for the "responsible deployment of" carbon capture, utilization, and sequestration on National Forests lands. Although part of

1600-641: A staff of 10 to 300 people under the direction of a district ranger, a line officer who reports to a forest supervisor. The districts vary in size from 50,000 acres (200 km ) to more than 1 million acres (4,000 km ). Most on-the-ground activities occur on ranger districts, including trail construction and maintenance, operation of campgrounds, oversight of a wide variety of special use permitted activities, and management of vegetation and wildlife habitat. U.S. Forest Service Law Enforcement & Investigations (LEI), headquartered in Washington, D.C. ,

1700-724: Is a federal law enforcement agency of the U.S. government. It is responsible for enforcement of federal laws and regulations governing national forest lands and resources. All law enforcement officers and special agents receive their training through Federal Law Enforcement Training Center (FLETC). Operations are divided into two major functional areas: Uniformed Law Enforcement Officers (LEOs) enforce federal laws and regulations governing national forest lands and resources. LEOs also enforce some or all state laws on National Forest Lands. As part of that mission, LEOs carry firearms, defensive equipment, make arrests, execute search warrants , complete reports, and testify in court. They establish

1800-420: Is a mountain - building process that takes place at a convergent plate margin when plate motion compresses the margin. An orogenic belt or orogen develops as the compressed plate crumples and is uplifted to form one or more mountain ranges . This involves a series of geological processes collectively called orogenesis . These include both structural deformation of existing continental crust and

1900-615: Is a result of that recent glaciation. Uplift and faulting in combination with glaciation have been the dominant processes which have created the tall peaks and deep valleys of the Alpine Lakes Wilderness area. The most common rock type in this area is intrusive igneous , which are highly fragmented granitics ; this includes most of the Foss Lakes and Enchantment Lakes area. The other major rock types are sedimentary , metamorphics , ultrabasic rock complex and

2000-653: Is between about 1,000 feet (300 m) in the lower elevations to over 9,000 feet (2,700 m) on Mount Stuart . The history of the formation of the Cascade Mountains dates back millions of years ago to the late Eocene Epoch. With the North American Plate overriding the Pacific Plate , episodes of volcanic igneous activity persisted. In addition, small fragments of the oceanic and continental lithosphere called terranes created

2100-446: Is initiated along one or both of the continental margins of the ocean basin, producing a volcanic arc and possibly an Andean-type orogen along that continental margin. This produces deformation of the continental margins and possibly crustal thickening and mountain building. Mountain formation in orogens is largely a result of crustal thickening. The compressive forces produced by plate convergence result in pervasive deformation of

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2200-600: Is one of the most popular outdoor recreational areas in the State of Washington. Although this area has the wilderness designation and no motorized vehicles such as cars, motorcycles, or even bicycles can operate in this area, there is heavy foot traffic and camping throughout. Because of this heavy foot traffic, managing the Alpine Lakes Wilderness area to preserve its integrity is very challenging. This recreational area's popularity has led to physical, biological, and social impacts. The Forest Service has taken many steps to minimize

2300-422: Is still in use today, though commonly investigated by geochronology using radiometric dating. Based on available observations from the metamorphic differences in orogenic belts of Europe and North America, H. J. Zwart (1967) proposed three types of orogens in relationship to tectonic setting and style: Cordillerotype, Alpinotype, and Hercynotype. His proposal was revised by W. S. Pitcher in 1979 in terms of

2400-480: Is taking place today in the Southern Alps of New Zealand). Orogens have a characteristic structure, though this shows considerable variation. A foreland basin forms ahead of the orogen due mainly to loading and resulting flexure of the lithosphere by the developing mountain belt. A typical foreland basin is subdivided into a wedge-top basin above the active orogenic wedge, the foredeep immediately beyond

2500-453: The Alpine type orogenic belt , typified by a flysch and molasse geometry to the sediments; ophiolite sequences, tholeiitic basalts, and a nappe style fold structure. In terms of recognising orogeny as an event , Leopold von Buch (1855) recognised that orogenies could be placed in time by bracketing between the youngest deformed rock and the oldest undeformed rock, a principle which

2600-501: The Columbia River . In addition to over 700 lakes this area offers over 300 miles (480 km) of Forest Service class one and two streams. The Alpine Lakes Wilderness plays a significant role in both domestic water use and irrigation in its surrounding region. This is critical with the increasing challenge to provide an adequate supply of clean water with the growing population and increase in agricultural demands. Expansion of

2700-577: The Himalayas for the last 65 million years. The processes of orogeny can take tens of millions of years and build mountains from what were once sedimentary basins . Activity along an orogenic belt can be extremely long-lived. For example, much of the basement underlying the United States belongs to the Transcontinental Proterozoic Provinces, which accreted to Laurentia (the ancient heart of North America) over

2800-879: The Multiple Use – Sustained Yield Act of 1960 , P.L. 86-517; the Wilderness Act , P.L. 88-577; the National Forest Management Act , P.L. 94-588; the National Environmental Policy Act , P.L. 91–190; the Cooperative Forestry Assistance Act , P.L. 95-313; and the Forest and Rangelands Renewable Resources Planning Act , P.L. 95-307. From the early 1900s to the present, there has been a fierce rivalry over control of forests between

2900-608: The National Park Service , the Fish and Wildlife Service , and the Bureau of Land Management . GAO ultimately did not offer a recommendation upon the conclusion of its performance audit . The Forest Service remains a part of the USDA. As of 2019, FY 2020 Forest Service total budget authority is $ 5.14 billion, a decrease of $ 815 million from 2019. The budget includes $ 2.4 billion for Wildland Fire Management,

3000-646: The North Cascades about 50 million years ago. During the Pleistocene period dating back over two million years ago, glaciation advancing and retreating repeatedly scoured the landscape leaving deposits of rock debris. The last glacial retreat in the Alpine Lakes area began about 14,000 years ago and was north of the Canada–US border by 10,000 years ago. The U-shaped cross section of the river valleys

3100-691: The San Andreas Fault , restraining bends result in regions of localized crustal shortening and mountain building without a plate-margin-wide orogeny. Hotspot volcanism results in the formation of isolated mountains and mountain chains that look as if they are not necessarily on present tectonic-plate boundaries, but they are essentially the product of plate tectonism. Likewise, uplift and erosion related to epeirogenesis (large-scale vertical motions of portions of continents without much associated folding, metamorphism, or deformation) can create local topographic highs. Eventually, seafloor spreading in

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3200-663: The Tongass National Forest in Alaska and ski areas such as Alta, Utah in the Wasatch-Cache National Forest . In addition, the Forest Service is responsible for managing National Grasslands in the midwest. Furthermore, areas designated as wilderness by acts of Congress , prohibit logging, mining, road and building construction and land leases for purposes of farming and or livestock grazing. Since 1978, several Presidents have directed

3300-701: The United States General Land Office were combined to create the Bureau of Land Management in 1946. Also of note was that it was not until 1976 that the Federal Land Policy and Management Act became the national policy for retaining public land for federal ownership. Significant federal legislation affecting the Forest Service includes the Weeks Act of 1911, the Taylor Grazing Act of 1934 , P.L. 73-482;

3400-614: The Western Hemlock , Pacific Silver Fir , Subalpine Mountain Hemlock , Subalpine Fir , and Grand Fir / Douglas Fir . The Alpine Lakes Wilderness offers an abundance of diversity in both plant and animal species. The Alpine Lakes Wilderness and its old growth forests offer critical habitat for many species on the Washington State Department of Fish and Wildlife's "Species of Concern" list which includes

3500-510: The extrusive igneous group that include basalt , andesite , and rhyolite . The metamorphic rocks are primarily in the northern part and the southern area is made up of volcanic and sedimentary rocks. The Wenatchee Mountains are mostly composed of peridotite . The Alpine Lakes Wilderness is considered by the U.S. Environmental Protection Agency to be in the North Cascades ecoregion , dominated by forests , subalpine , and alpine ecozones. Indicator tree species of individual zones include

3600-647: The late Devonian (about 380 million years ago) with the Antler orogeny and continuing with the Sonoma orogeny and Sevier orogeny and culminating with the Laramide orogeny . The Laramide orogeny alone lasted 40 million years, from 75 million to 35 million years ago. Orogens show a great range of characteristics, but they may be broadly divided into collisional orogens and noncollisional orogens (Andean-type orogens). Collisional orogens can be further divided by whether

3700-399: The 195 million acres (790,000 km ) of public land administered by the Forest Service. Individual sites range from 47 to 22,500 ha in size. Operations of Experimental Forests and Ranges are directed by local research teams for the individual sites, by Research Stations for the regions in which they are located, and at the level of the Forest Service. Major themes in research at

3800-691: The Alpine Lakes Area were listed in the National Register of Historic Places: Stevens Pass Historic District, Salmon La Sac Guard Station, the Blewett Arrastra and the townsite of Liberty. On December 12, 2014, Congress passed legislation expanding the Alpine Lakes Wilderness by 22,000 acres in the Middle Fork Snoqualmie Valley and granting National Wild and Scenic River status to sections of

3900-736: The Alpine Lakes Wilderness into the Pratt River area would allow for further protection of the lower elevation forests of this region and the lower water shed. In addition, those forests serve to reduce flooding. The Alpine Lakes Wilderness is managed by the Mount Baker-Snoqualmie National Forest in the west and the Okanogan - Wenatchee National Forest in the east. There are four Ranger Districts— Cle Elum , Leavenworth , Snoqualmie , and Skykomish —that administer this land. The Alpine Lakes Wilderness area

4000-632: The Canada lynx ( Lynx canadensis ). The Alpine Lakes Wilderness offers many ecological benefits. The wilderness offers exceptional water quality and holds portions, or all of, the headwaters for the Skykomish , Snoqualmie , Wenatchee , and Yakima Rivers . The Skykomish and Snoqualmie Rivers flow to the west into the Snohomish River and the Wenatchee and Yakima Rivers flow eastward into

4100-491: The Chief. Research stations include Northern, Pacific Northwest, Pacific Southwest, Rocky Mountain , and Southern . There are 92 research work units located at 67 sites throughout the United States. there are 80 Experimental Forests and Ranges that have been established progressively since 1908; many sites are more than 50 years old. The system provides places for long-term science and management studies in major vegetation types of

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4200-630: The Department of Agriculture and the Department of the Interior. Their roles overlap but numerous proposals to combine the two have failed. Most recently, in 2009, the Government Accountability Office (GAO) evaluated whether the Forest Service should be moved from the Department of Agriculture to the Department of the Interior, which already manages some 438 million acres (1,770,000 km ) of public land through

4300-478: The Department of Agriculture, the Forest Service receives its budget through the Subcommittee on Appropriations—Interior, Environment, and Related Agencies. The Forest Service achieved widespread awareness during the 1960s, as it became the setting for the long running classic TV show Lassie , with storylines focusing on Lassie's adventures with various forest rangers. The iconic collie's association with

4400-486: The Experimental Forests and Ranges includes: develop of systems for managing and restoring forests, range lands, and watersheds; investigate the workings of forest and stream ecosystems; characterize plant and animal communities; observe and interpret long-term environmental change and many other themes. There are nine regions in the Forest Service; numbered 1 through 10 (Region 7 was eliminated in 1965 when

4500-478: The Forest Service adapt current policies and develop new policies and actions to conserve and manage the national forests and grasslands for climate resilience, so that the Agency can provide for ecological integrity and support social and economic sustainability over time?" Ancillary questions pertained to both "adaptation planning" and "adaptation practices". The background section of the proposed rulemaking includes

4600-768: The Forest Service and other statutes under the United States Code . Special agents are normally plainclothes officers who carry concealed firearms, and other defensive equipment, make arrests, carry out complex criminal investigations, present cases for prosecution to U.S. Attorneys , and prepare investigative reports. All field agents are required to travel a great deal and usually maintain a case load of ten to fifteen ongoing criminal investigations at one time. Criminal investigators occasionally conduct internal and civil claim investigations. The 193 million acres (780,000 km ) of public land that are managed as national forests and grasslands are collectively known as

4700-446: The Forest Service balances resource extraction, resource protection, and providing recreation. The work includes managing 193 million acres (780,000 km ) of national forest and grasslands, including 59 million acres (240,000 km ) of roadless areas ; 14,077 recreation sites; 143,346 miles (230,693 km) of trails; 374,883 miles (603,316 km) of roads; and the harvesting of 1.5 billion trees per year. Further,

4800-502: The Forest Service fought fires on 2.996 million acres (12,120 km ) of land in 2007. The Forest Service organization includes ranger districts, national forests, regions, research stations and research work units and the Northeastern Area Office for State and Private Forestry. Each level has responsibility for a variety of functions. The Chief of the Forest Service is a career federal employee who oversees

4900-401: The Forest Service led to Lassie receiving numerous awards and citations from the U.S. Senate and the Department of Agriculture, and was partly responsible for a bill regarding soil and water pollution that was signed into law in early 1968 by President Lyndon Johnson , which was dubbed by some as "The Lassie Program". In the 2019 family comedy movie Playing With Fire , John Cena plays

5000-647: The Interior Department to the Bureau of Forestry, henceforth known as the United States Forest Service . Gifford Pinchot was the first United States Chief Forester in the Presidency of Theodore Roosevelt . A historical note to include is that the National Park Service was created in 1916 to manage Yellowstone and several other parks; in 1956, the Fish and Wildlife Service became the manager of lands reserved for wildlife. The Grazing Service and

5100-589: The Kendall Catwalk on Kendall Peak . This exposed section should not be attempted in snowy or icy conditions. Notable mountains and ranges in the wilderness include: Notable lakes in the wilderness include: United States Forest Service The United States Forest Service ( USFS ) is an agency within the U.S. Department of Agriculture that administers the nation's 154 national forests and 20 national grasslands covering 193 million acres (780,000 km ) of land. The major divisions of

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5200-561: The Middle Fork Snoqualmie and Pratt Rivers. The legislation was included as part of a package of 100 public lands bills attached to the 2015 National Defense Authorization Act. President Obama signed the legislation into law on December 19, 2014, marking the first major wilderness area designation in Washington State since the addition of Wild Sky Wilderness in 2008. The Alpine Lakes Wilderness features some of

5300-582: The National Forest System. These lands are located in 44 states, Puerto Rico, and the Virgin Islands and comprise about 9% of the total land area in the United States. The lands are organized into 155 national forests and 20 national grasslands. The mission of the National Forest System is to protect and manage the forest lands so they best demonstrate the sustainable multiple-use management concept, using an ecological approach, to meet

5400-538: The USFS to administer National Monuments inside of preexisting National Forests. The Forest Service also manages Grey Towers National Historic Site in Milford, Pennsylvania , the home and estate of its first Chief, Gifford Pinchot . By 1935, the U.S. Forest Service's fire management policy stipulated that all wildfires were to be suppressed by 10 am the morning after they were first spotted. In August 1944, to reduce

5500-1047: The Western spotted frog ( Rana pretiosa ), Common Loon ( Gavia immer ), Western Grebe ( Aechmophorus occidentalis ), Goshawk ( Accipiter gentilis ), Golden eagle ( Aquila chrysaetos ), Bald eagle ( Haliaeetus leucocephalus ), Peregrine falcon ( Falco peregrinus ), Merlin ( Falco columbarius ), Flammulated owl ( Otus flammeolus ), Spotted owl ( Strix occidentalis ), Vaux's swift ( Chaetura vauxi ), PIleated woodpecker ( Dryocopus pileatus ), Lewis' woodpecker ( Melanerpes lewis ), White-headed woodpecker ( Picoides albolarvatus ), Black-backed Three-toed woodpecker ( Picoides arcticus ), Horned lark ( Eremophila alpestris ), White-breasted nuthatch ( Sitta carolinensis ), Sage thrasher ( Oreoscoptes montanus ), Loggerhead shrike ( Lanius ludovicianus ), Vesper sparrow ( Pooecetes gramineus ), Sage sparrow ( Amphispiza belli ), Townsend's Big-eared bat ( Plecotus townsendi ), Fisher ( Pekania pennanti ), wolverine ( Gulo gulo ) and

5600-497: The acceptance of plate tectonics , geologists had found evidence within many orogens of repeated cycles of deposition, deformation, crustal thickening and mountain building, and crustal thinning to form new depositional basins. These were named orogenic cycles , and various theories were proposed to explain them. Canadian geologist Tuzo Wilson first put forward a plate tectonic interpretation of orogenic cycles, now known as Wilson cycles. Wilson proposed that orogenic cycles represented

5700-414: The active front, a forebulge high of flexural origin and a back-bulge area beyond, although not all of these are present in all foreland-basin systems. The basin migrates with the orogenic front and early deposited foreland basin sediments become progressively involved in folding and thrusting. Sediments deposited in the foreland basin are mainly derived from the erosion of the actively uplifting rocks of

5800-451: The agency are the Chief's Office, National Forest System, State and Private Forestry, Business Operations, as well as Research and Development. The agency manages about 25% of federal lands and is the sole major national land management agency not part of the U.S. Department of the Interior (which manages the National Park Service , the U.S. Fish and Wildlife Service and the Bureau of Land Management ). The concept of national forests

5900-485: The agency would have to put $ 400 to $ 500 million in wildfire prevention projects on hold because funding for firefighting was running low as the fiscal year ended. The decision was meant to preserve resources for fighting active fires burning in California, Oregon, Washington and Idaho. Politicians of both parties indicated they believed the then-current funding structure was broken, but did not agree on steps to fix

6000-646: The agency. The Chief reports to the Under Secretary for Natural Resources and Environment in the U.S. Department of Agriculture, an appointee of the President confirmed by the Senate. The Chief's staff provides broad policy and direction for the agency, works with the Administration to develop a budget to submit to Congress, provides information to Congress on accomplishments, and monitors activities of

6100-642: The agency. There are five deputy chiefs for the following areas: National Forest System, State and Private Forestry, Research and Development, Business Operations, and Finance. The Forest Service Research and Development deputy area includes five research stations, the Forest Products Laboratory , and the International Institute of Tropical Forestry , in Puerto Rico. Station directors, like regional foresters, report to

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6200-635: The collision is with a second continent or a continental fragment or island arc. Repeated collisions of the later type, with no evidence of collision with a major continent or closure of an ocean basin, result in an accretionary orogen. Examples of orogens arising from collision of an island arc with a continent include Taiwan and the collision of Australia with the Banda arc. Orogens arising from continent-continent collisions can be divided into those involving ocean closure (Himalayan-type orogens) and those involving glancing collisions with no ocean basin closure (as

6300-596: The course of 200 million years in the Paleoproterozoic . The Yavapai and Mazatzal orogenies were peaks of orogenic activity during this time. These were part of an extended period of orogenic activity that included the Picuris orogeny and culminated in the Grenville orogeny , lasting at least 600 million years. A similar sequence of orogenies has taken place on the west coast of North America, beginning in

6400-539: The creation of new continental crust through volcanism . Magma rising in the orogen carries less dense material upwards while leaving more dense material behind, resulting in compositional differentiation of Earth's lithosphere ( crust and uppermost mantle ). A synorogenic (or synkinematic ) process or event is one that occurs during an orogeny. The word orogeny comes from Ancient Greek ὄρος ( óros )  'mountain' and γένεσις ( génesis )  'creation, origin'. Although it

6500-427: The crust of the continental margin ( thrust tectonics ). This takes the form of folding of the ductile deeper crust and thrust faulting in the upper brittle crust. Crustal thickening raises mountains through the principle of isostasy . Isostacy is the balance of the downward gravitational force upon an upthrust mountain range (composed of light, continental crust material) and the buoyant upward forces exerted by

6600-633: The current Eastern Region was created from the former Eastern and North Central regions. ). Each encompasses a broad geographic area and is headed by a regional forester who reports directly to the Chief. The regional forester has broad responsibility for coordinating activities among the various forests within the region, for providing overall leadership for regional natural resource and social programs, and for coordinated regional land use planning. The Forest Service oversees 155 national forests, 20 grasslands, and one tall-grass prairie. Each administrative unit typically comprises several ranger districts, under

6700-454: The dense underlying mantle . Portions of orogens can also experience uplift as a result of delamination of the orogenic lithosphere , in which an unstable portion of cold lithospheric root drips down into the asthenospheric mantle, decreasing the density of the lithosphere and causing buoyant uplift. An example is the Sierra Nevada in California. This range of fault-block mountains experienced renewed uplift and abundant magmatism after

6800-581: The development of geologic concepts during the 19th century, the presence of marine fossils in mountains was explained in Christian contexts as a result of the Biblical Deluge . This was an extension of Neoplatonic thought, which influenced early Christian writers . The 13th-century Dominican scholar Albert the Great posited that, as erosion was known to occur, there must be some process whereby new mountains and other land-forms were thrust up, or else there would eventually be no land; he suggested that marine fossils in mountainsides must once have been at

6900-439: The diverse needs of people. The goal of the State and Private Forestry program is to assist with financial and technical assistance to private landowners, state agencies, tribes, and community resource managers. It provides assistance by helping sustain the United States' urban and rural forests and their associated communities from wildland fires, insects, disease, and invasive organisms. Approximately 537 staff are employed in

7000-420: The eastern end of the wilderness is accessible by Ingalls Creek on the south and Icicle Creek, near Leavenworth, Washington , on the north. North of Icicle Creek are the Chiwaukum Mountains which stretch northwards to Highway 2. The northern parts of the Alpine Lakes are accessible from Highway 2 and Stevens Pass . A segment of the Pacific Crest Trail leads from Snoqualmie Pass to Stevens Pass and includes

7100-453: The edge of the uplifted layers are exposed. Although mountain building mostly takes place in orogens, a number of secondary mechanisms are capable of producing substantial mountain ranges. Areas that are rifting apart, such as mid-ocean ridges and the East African Rift , have mountains due to thermal buoyancy related to the hot mantle underneath them; this thermal buoyancy is known as dynamic topography . In strike-slip orogens, such as

7200-478: The environmental impacts of heavy recreational use. Education/information is a primary method used by the Forest Service. Other methods include Wilderness Ranger contacts, regulation, permits, restoration efforts, and trail clearing. Due to the popularity of the Enchantment Lakes area within the Alpine Lakes Wilderness, wilderness permits are required. These permits must be applied for well in advance of

7300-409: The final form of the majority of old orogenic belts is a long arcuate strip of crystalline metamorphic rocks sequentially below younger sediments which are thrust atop them and which dip away from the orogenic core. An orogen may be almost completely eroded away, and only recognizable by studying (old) rocks that bear traces of orogenesis. Orogens are usually long, thin, arcuate tracts of rock that have

7400-514: The forests. These values and resources include grazing , timber , mining , recreation , wildlife habitat, and wilderness . Because of continuing development elsewhere, the large size of National Forests have made them de facto wildlife reserves for a number of rare and common species. In recent decades, the importance of mature forest for the spotted owl and a number of other species led to great changes in timber harvest levels. Orogeny Orogeny ( / ɒ ˈ r ɒ dʒ ə n i / )

7500-544: The funding allocation. During the 2019–2020 bushfires in Australia, the US Forest Services sent a contingent of firefighters. They worked alongside firefighters from other American fire departments. In April 2023, the U.S. Forest Service published a proposed rulemaking in response to climate change on the topic of improving climate resilience on the public lands that it manages. The agency introduced

7600-825: The future. The report is entitled "Managing the Impacts of Wildfire on Communities and the Environment: A Report to the President In Response to the Wildfires of 2000"—The National Fire Plan for short. The National Fire Plan continues to be an integral part of the Forest Service today. The following are important operational features of the National Fire Plan: In August 2014, Tom Vilsack, the Secretary of Agriculture, announced that

7700-461: The headquarters office and 26,521 in regional and field office. The USDA Forest Service's mission is to sustain the health, diversity, and productivity of the Nation's forests and grasslands to meet the needs of present and future generations. Its motto is "Caring for the land and serving people." As the lead federal agency in natural resource conservation, the Forest Service provides leadership in

7800-932: The lower valley forests of Alpine Lakes began in the 1950s by the North Cascades Conservation Council formed in 1957 and in October 1968 the Alpine Lakes Protection Society was formed. However, it was the plans of the Snoqualmie National Forest to expand timber sales and build a road up the Miller River valley to Lake Dorothy and then onto the Middle Fork of the Snoqualmie River to the city of North Bend that started

7900-585: The most rugged topography in the Cascade Range with craggy peaks and ridges, deep glacial valleys , and granite walls spotted with over 700 mountain lakes. Geological events occurring many years ago created the diverse topography and drastic elevation changes over the Cascade Range leading to the various climate differences. These climate differences lead to vegetation variety defining the ecoregions in this area. The elevation range of this area

8000-616: The most widely recognized slogans in the United States. According to the Advertising Council , Smokey Bear is the most recognized icons in advertising history and has appeared almost everywhere via Public Service Announcements in print, radio, television. Smokey Bear, an icon protected by law, is jointly owned by the Forest Service, the Ad Council and the National Association of State Foresters . In 1965, at

8100-543: The mountain range, although some sediments derive from the foreland. The fill of many such basins shows a change in time from deepwater marine ( flysch -style) through shallow water to continental ( molasse -style) sediments. While active orogens are found on the margins of present-day continents, older inactive orogenies, such as the Algoman , Penokean and Antler , are represented by deformed and metamorphosed rocks with sedimentary basins further inland. Long before

8200-614: The need for such rulemaking as: Climate change and related stressors, such as wildfire, drought, insects and disease, extreme weather events, and chronic stress on ecosystems are resulting in increasing impacts with rapid and variable rates of change on national forests and grasslands. These impacts can be compounded by fire suppression, development in the Wildland Urban Interface (WUI), and non-climate informed timber harvest and reforestation practices. The foundational question pertained to climate adaptation : "How should

8300-543: The number of forest fires , the Forest Service and the Wartime Advertising Council began distributing fire education posters featuring a black bear . The poster campaign was a success; the black bear would later be named Smokey Bear , and would, for decades, be the "spokesbear" for the Forest Service. Smokey Bear has appeared in innumerable TV commercials; his popular catch phrase, "Only YOU can prevent forest fires"—later changed to wildfires—is one of

8400-416: The ocean basin comes to a halt, and continued subduction begins to close the ocean basin. The closure of the ocean basin ends with a continental collision and the associated Himalayan-type orogen. Erosion represents the final phase of the orogenic cycle. Erosion of overlying strata in orogenic belts, and isostatic adjustment to the removal of this overlying mass of rock, can bring deeply buried strata to

8500-426: The overall direction of a forest supervisor. Within the supervisor's office, the staff coordinates activities among districts, allocates the budget, and provides technical support to each district. Forest supervisors are line officers and report to regional foresters. The administration of individual National Forests is subdivided into Ranger Districts. The Forest Service has over 600 ranger districts. Each district has

8600-416: The periodic opening and closing of an ocean basin, with each stage of the process leaving its characteristic record on the rocks of the orogen. The Wilson cycle begins when previously stable continental crust comes under tension from a shift in mantle convection . Continental rifting takes place, which thins the crust and creates basins in which sediments accumulate. As the basins deepen, the ocean invades

8700-473: The program and is administered through National Forest System regions and the Northeastern Area of the United States. The research and development (R&D) arm of the Forest Service works to improve the health and use of the United States' forests and grasslands . Research has been part of the Forest Service mission since the agency's inception in 1905. Today, Forest Service researchers work in

8800-637: The protection, management, and use of the nation's forest, rangeland, and aquatic ecosystems. The agency's ecosystem approach to management integrates ecological, economic, and social factors to maintain and enhance the quality of the environment to meet current and future needs. Through implementation of land and resource management plans, the agency ensures sustainable ecosystems by restoring and maintaining species diversity and ecological productivity that helps provide recreation, water, timber, minerals, fish, wildlife, wilderness, and aesthetic values for current and future generations of people. The everyday work of

8900-800: The request of the Joint Chiefs of Staff , the Forest Service was commissioned by the Advanced Research Projects Agency (ARPA) to research the use of forest fire as a military weapon. A report was published in June 1970 and declassified in May 1983. In September 2000, the Departments of Agriculture and the Interior developed a plan to respond to the fires of 2000, to reduce the impacts of these wildland fires on rural communities, and to ensure sufficient firefighting resources in

9000-441: The rift zone, and as the continental crust rifts completely apart, shallow marine sedimentation gives way to deep marine sedimentation on the thinned marginal crust of the two continents. As the two continents rift apart, seafloor spreading commences along the axis of a new ocean basin. Deep marine sediments continue to accumulate along the thinned continental margins, which are now passive margins . At some point, subduction

9100-491: The sea-floor. Orogeny was used by Amanz Gressly (1840) and Jules Thurmann (1854) as orogenic in terms of the creation of mountain elevations, as the term mountain building was still used to describe the processes. Elie de Beaumont (1852) used the evocative "Jaws of a Vise" theory to explain orogeny, but was more concerned with the height rather than the implicit structures created by and contained in orogenic belts. His theory essentially held that mountains were created by

9200-414: The squeezing of certain rocks. Eduard Suess (1875) recognised the importance of horizontal movement of rocks. The concept of a precursor geosyncline or initial downward warping of the solid earth (Hall, 1859) prompted James Dwight Dana (1873) to include the concept of compression in the theories surrounding mountain-building. With hindsight, we can discount Dana's conjecture that this contraction

9300-423: The subduction produces compression in the overriding plate. Whether subduction produces compression depends on such factors as the rate of plate convergence and the degree of coupling between the two plates, while the degree of coupling may in turn rely on such factors as the angle of subduction and rate of sedimentation in the oceanic trench associated with the subduction zone. The Andes Mountains are an example of

9400-460: The surface. The erosional process is called unroofing . Erosion inevitably removes much of the mountains, exposing the core or mountain roots ( metamorphic rocks brought to the surface from a depth of several kilometres). Isostatic movements may help such unroofing by balancing out the buoyancy of the evolving orogen. Scholars debate about the extent to which erosion modifies the patterns of tectonic deformation (see erosion and tectonics ). Thus,

9500-443: The visit and are awarded at random. The western end of the Alpine Lakes Wilderness is accessible via the Middle Fork of the Snoqualmie River northeast of North Bend, Washington . Snoqualmie Pass provides access to the southwestern end of the wilderness. Salmon La Sac north of Roslyn, Washington is a hub for trailheads and U.S. Forest Service roads providing entry into the southern and central regions. The Stuart Range on

9600-399: The world. The program also promotes sustainable land management overseas and brings important technologies and innovations back to the United States. The program focuses on conserving key natural resource in cooperation with countries across the world. Although a large volume of timber is logged every year, not all National Forests are entirely forested. There are tidewater glaciers in

9700-400: Was born from Theodore Roosevelt 's conservation group, Boone and Crockett Club , due to concerns regarding Yellowstone National Park beginning as early as 1875. In 1876, Congress formed the office of Special Agent in the Department of Agriculture to assess the quality and conditions of forests in the United States. Franklin B. Hough was appointed the head of the office. In 1881, the office

9800-451: Was due to the cooling of the Earth (aka the cooling Earth theory). The cooling Earth theory was the chief paradigm for most geologists until the 1960s. It was, in the context of orogeny, fiercely contested by proponents of vertical movements in the crust, or convection within the asthenosphere or mantle . Gustav Steinmann (1906) recognised different classes of orogenic belts, including

9900-515: Was expanded into the newly formed Division of Forestry . The Forest Reserve Act of 1891 authorized withdrawing land from the public domain as forest reserves managed by the Department of the Interior . In 1901, the Division of Forestry was renamed the Bureau of Forestry . The Transfer Act of 1905 transferred the management of forest reserves from the United States General Land Office of

10000-443: Was used before him, the American geologist G. K. Gilbert used the term in 1890 to mean the process of mountain-building, as distinguished from epeirogeny . Orogeny takes place on the convergent margins of continents. The convergence may take the form of subduction (where a continent rides forcefully over an oceanic plate to form a noncollisional orogeny) or continental collision (convergence of two or more continents to form

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