New World Mining District
The New World Mining District is an area of mineralization that sits within Gallatin National Forest to the northeast of Cooke City and Yellowstone National Park, in Park County, Montana, United States. The district hosts extensive deposits of gold, silver and copper in zones of carbonate replacement. These deposits are the result of Eocene hydrothermal alteration of Cambrian carbonates related to the Absaroka volcanic field. Alteration and mineralization occur primarily within carbonate clasts hosted in a volcanic breccia pipe and in carbonate rocks that lie adjacent to that breccia.Elliot, J.E., Kirk, A.R., and Johnson, T.W., 1992 Field Guide - Gold-Copper-Silver Deposits of the New World District., Tobacco Root Geological Society. Field, C. and J. E. Elliott (1992). Guidebook for the Red Lodge-Beartooth Mountains-Stillwater area, Tobacco Root Geological Society, Inc. History Initial exploration of the region occurred in the 1860s with extensive workings developed at the Ho ...
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Homestake Mine
Homestake Mine is the name for several mines in the United States: * Homestake Mine (Nevada), listed in the National Register of Historic Places * Homestake Mine (South Dakota) The Homestake Mine was a deep underground gold mine (8,000 feet or 2,438 m) located in Lead, South Dakota. Until it closed in 2002 it was the largest and deepest gold mine in North America. The mine produced more than of gold during its lifetime. ...

Lamar River
The Lamar River is a tributary of the Yellowstone River, approximately long, in northwestern Wyoming in the United States. The river is located entirely within Yellowstone National Park. History Prior to the 1884–85 Geological Survey of the park, the Lamar was known as the East Fork of the Yellowstone River. During that survey, Geologist Arnold Hague named the river for L.Q.C. (Lucius Quintius Cincinnatus) Lamar, then Secretary of the Interior (March 1885 – January 1888), and a former slaveholder and author of the Mississippi Ordinance of Secession. The Lamar Valley, or the ''Secluded Valley'' of Trapper Osborne Russell and other park features or administrative names which contain ''Lamar'' are derived from this original naming. Osborne Russell in his 1921 ''Journal of a Trapper'' described the Lamar as follows: In 1869, the Cook–Folsom–Peterson Expedition encountered the Lamar River (East Fork) just upstream from the canyon section flowing into the Yellowstone and ...
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Acid Mine Drainage
Acid mine drainage, acid and metalliferous drainage (AMD), or acid rock drainage (ARD) is the outflow of acidic water from metal mines or coal mines. Acid rock drainage occurs naturally within some environments as part of the rock weathering process but is exacerbated by large-scale earth disturbances characteristic of mining and other large construction activities, usually within rocks containing an abundance of sulfide minerals. Areas where the earth has been disturbed (e.g. construction sites, subdivisions, and transportation corridors) may create acid rock drainage. In many localities, the liquid that drains from coal stocks, coal handling facilities, coal washeries, and coal waste tips can be highly acidic, and in such cases it is treated as acid rock drainage. This liquid often contains highly toxic metals, such as copper or iron. These, combined with reduced pH, have a detrimental impact on the streams aquatic environments. The same type of chemical reactions and pr ...
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Land And Water Conservation Fund
The United States' Land and Water Conservation Fund (LWCF) is a federal program that was established by Act of Congress in 1965 to provide funds and matching grants to federal, state and local governments for the acquisition of land and water, and easements on land and water, for the benefit of all Americans.Land and Water Conservation Fund
Lands and Realty Management, USDA Forest Service The main emphases of the fund are recreation and the protection of national natural treasures in the forms of parks and protected forest and wildlife areas. The LWCF has a broad-based coalition of support and oversight, including the

Trust For Public Lands
The Trust for Public Land is a U.S. nonprofit organization with a mission to "create parks and protect land for people, ensuring healthy, livable communities for generations to come". Since its founding in 1972, the Trust for Public Land has completed 5,000 park-creation and land conservation projects across the United States, protected over 3 million acres, and helped pass more than 500 ballot measures—creating $70 billion in voter-approved public funding for parks and open spaces. The Trust for Public Land also researches and publishes authoritative data about parks, open space, conservation finance, and urban climate change adaptation. Headquartered in San Francisco, the organization is among the largest U.S. conservation nonprofits, with approximately 30 field offices across the U.S., including a federal affairs function in Washington, D.C. Focus areas Consistent with its "Land for People" mission, the Trust for Public Land is widely known for urban conservation work, inclu ...
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Trout Unlimited
Trout Unlimited (TU) is a US non-profit organization dedicated to the conservation of freshwater streams, rivers, and associated upland habitats for trout, salmon, other aquatic species, and people. It is headquartered in Arlington, Virginia. The organization began in 1959 in Michigan. It has since spread throughout the United States and has local chapters in nearly every State in the United States. Trout Unlimited History and Profile Trout Unlimited was established in 1959 along the banks of Michigan's Au Sable River by a group of 16 anglers who were interested in protecting trout in that and other popular fishing rivers. Founders included Art Neumann and George Griffith, creator of the popular fly pattern Griffith's Gnat. The first president was Dr. Casey E. Westell Jr. Neumann was the first vice president. TU is a national organization with more than 150,000 formal members organized into about 400 chapters in nearly every state. The organization's annual budget is approximat ...
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National Parks And Conservation Association
National may refer to: Common uses * Nation or country ** Nationality – a ''national'' is a person who is subject to a nation, regardless of whether the person has full rights as a citizen Places in the United States * National, Maryland, census-designated place * National, Nevada, ghost town * National, Utah, ghost town * National, West Virginia, unincorporated community Commerce * National (brand), a brand name of electronic goods from Panasonic * National Benzole (or simply known as National), former petrol station chain in the UK, merged with BP * National Car Rental, an American rental car company * National Energy Systems, a former name of Eco Marine Power * National Entertainment Commission, a former name of the Media Rating Council * National Motor Vehicle Company, Indianapolis, Indiana, USA 1900-1924 * National Supermarkets, a defunct American grocery store chain * National String Instrument Corporation, a guitar company formed to manufacture the first resonator gui ...
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Earthjustice
Earthjustice (originally Sierra Club Legal Defense Fund) is a nonprofit public interest organization based in the United States dedicated to litigating environmental issues. Headquartered in San Francisco, it has 14 regional offices across the United States, an international program, a communications team, and a policy & legislation team in Washington, DC. Organization The organization was founded in 1971 as the Sierra Club Legal Defense Fund, though it was fully independent from the Sierra Club. It changed its name to Earthjustice in 1997 to better reflect its role as a legal advocate representing hundreds of regional, national and international organizations. As of September 2018, the group has provided free legal representation to more than 1,000 clients ranging from the Sierra Club, World Wildlife Fund, and the American Lung Association to smaller state and community groups, such as the Maine Lobstermen's Association and the Friends of the Everglades. Earthjustice is a non ...
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Greater Yellowstone Coalition
The Greater Yellowstone Coalition is a conservation organization protecting the lands, waters and wildlife of the Greater Yellowstone Ecosystem of Idaho, Montana and Wyoming. Founding The Greater Yellowstone Coalition was founded in 1983. Its core premise is that “an ecosystem will remain healthy and wild only if it is kept whole.”“Greater Yellowstone Coalition.” CAKE. Climate Adaptation Knowledge Exchange Organization, 2020. https://www.cakex.org/community/directory/organizations/greater-yellowstone-coalition. It aims to protect one of the last largely intact temperate ecosystems in the United States. Its founding president was conservationist Rick Reese.Hultman, Heather C. “Biographical Note.” Rick Reese Collection. Montana State University, Special Collections and Archival Informatics, 2019. Organizational goals The organization seeks to protect the lands, waters and wildlife of the 20-million-acre (81,000 km2) Greater Yellowstone Ecosystem. It advocates for “cons ...
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Reverse Circulation Drilling
A core sample is a cylindrical section of (usually) a naturally-occurring substance. Most core samples are obtained by drilling with special drills into the substance, such as sediment or rock, with a hollow steel tube, called a core drill. The hole made for the core sample is called the "core hole". A variety of core samplers exist to sample different media under different conditions. More continue to be invented on a regular basis. In the coring process, the sample is pushed more or less intact into the tube. Removed from the tube in the laboratory, it is inspected and analyzed by different techniques and equipment depending on the type of data desired. Core samples can be taken to test the properties of manmade materials, such as concrete, ceramics, some metals and alloys, especially the softer ones. Core samples can also be taken of living things, including human beings, especially of a person's bones for microscopic examination to help diagnose diseases. Methods The compo ...
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Clarks Fork Yellowstone River
The Clarks Fork of the Yellowstone River (sometimes called the Clark's Fork River) is a tributary of the Yellowstone River, 150 mi (241 km) long in the U.S. states of Montana and Wyoming. It rises in southern Montana, in the Gallatin National Forest in the Beartooth Mountains, approximately 4 mi (6 km) northeast of Cooke City and southwest of Granite Peak. It flows southeast into the Shoshone National Forest in northwest Wyoming, east of Yellowstone National Park, then northeast back into Montana. It passes Belfry, Bridger, Fromberg, and Edgar, and joins the Yellowstone approximately 2 mi (3 km) southeast of Laurel. The Clarks Fork of the Yellowstone River should not be confused with the Clark Fork River, which is located in Montana and Idaho. See also *Montana Stream Access Law *List of rivers of Montana *List of Wyoming rivers The following is a list of rivers in Wyoming, United States. East of the continental divide Missouri River ...
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Yellowstone River
The Yellowstone River is a tributary of the Missouri River, approximately long, in the Western United States. Considered the principal tributary of upper Missouri, via its own tributaries it drains an area with headwaters across the mountains and Great Plains, high plains of southern Montana and northern Wyoming, and stretching east from the Rocky Mountains in the vicinity of Yellowstone National Park. It flows northeast to its confluence with the Missouri River on the North Dakota side of the border, about 25 miles west of present-day Williston, North Dakota, Williston. Yellowstone watershed The Yellowstone River watershed is a river basin spanning across Montana, with minor extensions into Wyoming and North Dakota, toward headwaters and terminus, respectively. The Yellowstone Basin watershed contains a system of rivers, including the Yellowstone River, and four tributary basins: the Clarks Fork Yellowstone, Wind River (Wyoming), Wind River and Bighorn River, Tongue River (Mon ...
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