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Silver Bow Creek
Silver Bow Creek is a headwater stream of the Clark Fork (river) originating within the city limits of Butte, Montana, from the confluence of Little Basin and Blacktail Creeks. A former northern tributary, Yankee Doodle Creek, no longer flows directly into Silver Bow Creek as it is now captured by the Berkeley Pit. Silver Bow Creek flows northwest and north through a high mountain valley, passing east of Anaconda, Montana, where it becomes the Clark Fork at the confluence with Warm Springs Creek. For more than one hundred years Silver Bow Creek was an open industrial sewer, primarily used as a depository for mining and smelting waste. A record flood in 1908 dispersed mass quantities of heavy metals and arsenic along its entire floodplain, which posed significant risks to environmental and human health. Superfund designation, remediation, and restoration The Upper Clark Fork river basin is America's largest Superfund site. Butte, at the headwaters, was the source of much of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silver Bow Creek, Butte, America
Silver is a chemical element with the symbol Ag (from the Latin ', derived from the Proto-Indo-European ''h₂erǵ'': "shiny" or "white") and atomic number 47. A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. The metal is found in the Earth's crust in the pure, free elemental form ("native silver"), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Most silver is produced as a byproduct of copper, gold, lead, and zinc Refining (metallurgy), refining. Silver has long been valued as a precious metal. Silver metal is used in many bullion coins, sometimes bimetallism, alongside gold: while it is more abundant than gold, it is much less abundant as a native metal. Its purity is typically measured on a per-mille basis; a 94%-pure alloy is described as "0.940 fine". As one of the seven metals of antiquity, silver has had an enduring role in most h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Milltown Reservoir Superfund Site
The Milltown Reservoir Sediments Superfund Site is a major Superfund site in Missoula County, Montana, seven miles east of Missoula. It was added to the National Priorities List in 1983 when arsenic groundwater contamination was found in the Milltown area. The contamination resulted from a massive flood three years after its construction in 1905, which washed millions of tons of mine waste into the Clark Fork River, ultimately ending up behind the Milltown Dam. Since 1992, the site has been a part of the Clark Fork River Superfund Complex, consisting of three major sites (the other two in Anaconda and Butte) along a 120-mile stretch of the Clark Fork River. The Complex is the largest and most expensive Superfund site in the United States.EPA Milltown Reservoir Sediments page epa.gov; accessed May 9, 2015. ...
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Rivers Of Montana
The following is a partial list of rivers of Montana (U.S. state). East of Continental Divide Water in these rivers flows east and south from the Continental Divide of the Americas, also known as the Great Divide, into the Gulf of Mexico via the Missouri and Mississippi rivers. Missouri River watershed * Missouri River **Jefferson River ***Beaverhead River **** Blacktail Deer Creek ****Ruby River **** Red Rock River ***Big Hole River **** Wise River *** Boulder River **Roe River (one of the shortest rivers in the world) **Madison River **Gallatin River ***East Gallatin River ** Sixteen Mile Creek **Dearborn River ** Smith River ** Sun River ** Belt Creek **Marias River ***Cut Bank Creek ***Two Medicine River **** Birch Creek *****Dupuyer Creek *** Teton River *** Cottonwood Creek (Liberty County, Montana) ** Arrow Creek ** Cow Creek ** Birch Creek **Judith River ***Dry Wolf Creek (Judith Basin County, Montana) *** Dry Wolf Creek (Fergus County, Montana) **Musselshell River *** ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Westslope Cutthroat Trout
The westslope cutthroat trout (''Oncorhynchus clarkii lewisi''), also known as the black-spotted trout, common cutthroat trout and red-throated trout is a subspecies of the cutthroat trout (''Oncorhynchus clarkii'') and is a freshwater fish in the salmon family (family Salmonidae) of order Salmoniformes. The cutthroat is the Montana state fish.1-1-507. State fish Montana Code, accessed 23 April 2009. This subspecies is a ''species of concern'' in its Montana and British Columbia ranges and is considered ''threatened'' in its native range in . Taxonomy The scientific name of the westslope cutthroat trout is ''Oncorhynchus clarkii lewisi''. The subspecies was first described in the journals o ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silver Bow Creek West-slope Cutthroat Trout
Silver is a chemical element with the symbol Ag (from the Latin ', derived from the Proto-Indo-European ''h₂erǵ'': "shiny" or "white") and atomic number 47. A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. The metal is found in the Earth's crust in the pure, free elemental form ("native silver"), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Most silver is produced as a byproduct of copper, gold, lead, and zinc refining. Silver has long been valued as a precious metal. Silver metal is used in many bullion coins, sometimes alongside gold: while it is more abundant than gold, it is much less abundant as a native metal. Its purity is typically measured on a per-mille basis; a 94%-pure alloy is described as "0.940 fine". As one of the seven metals of antiquity, silver has had an enduring role in most human cultures. Other than in cur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Environmental Protection Agency
A biophysical environment is a biotic and abiotic surrounding of an organism or population, and consequently includes the factors that have an influence in their survival, development, and evolution. A biophysical environment can vary in scale from microscopic to global in extent. It can also be subdivided according to its attributes. Examples include the marine environment, the atmospheric environment and the terrestrial environment. The number of biophysical environments is countless, given that each living organism has its own environment. The term ''environment'' can refer to a singular global environment in relation to humanity, or a local biophysical environment, e.g. the UK's Environment Agency. Life-environment interaction All life that has survived must have adapted to the conditions of its environment. Temperature, light, humidity, soil nutrients, etc., all influence the species within an environment. However, life in turn modifies, in various forms, its conditions. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ARCO
ARCO ( ) is a brand of gasoline stations currently owned by Marathon Petroleum after BP sold its rights. BP commercializes the brand in Northern California, Oregon and Washington, while Marathon has rights for the rest of the United States and in Mexico. ARCO had been established in 1966 as the "Atlantic Richfield Company", an independent oil and gas company formed after the merger of Atlantic Petroleum and the Richfield Oil Corporation. History From 1966 to 2000, the 'Atlantic Richfield Company', doing business as ARCO, was an independent American oil company with operations in the United States, Indonesia, the North Sea, the South China Sea, and Mexico. After its acquisition of Anaconda Copper Mining Company in 1977, ARCO had owned hard rock mines in several western states, which has created environmental clean-up liabilities to the company to this day even after the mines were closed in the early 1980s. In 2000, BP acquired ARCO for $26.8 billion. ARCO's retail and mark ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anaconda Copper
The Anaconda Copper Mining Company, known as the Amalgamated Copper Company between 1899 to 1915, was an American mining company headquartered in Butte, Montana. It was one of the largest trusts of the early 20th century and one of the largest mining companies in the world for much of the 20th century. Marcus Daly bought the original silver mine, named the Anaconda, in 1880. Daly partnered with George Hearst, James Ben Ali Haggin and Lloyd Tevis in 1881 to develop it, and the company expanded dramatically in 1882 with the discovery of huge copper deposits. In 1883, Daly began building a smelter and the town of Anaconda to process copper mined in Butte. In 1899, with Hearst and Tevis deceased, Haggin retired and Daly restructured the company, into the Amalgamated Copper Company bringing in H H Rogers and William Rockefeller. By 1910, Amalgamated had expanded its operations and bought the assets of all other copper companies operating in Butte. In 1922, Anaconda bought mining ope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anaconda Smelter Stack
The Anaconda Smelter Stack is the tallest surviving masonry structure in the world, with an overall height of about , including a brick chimney tall and the downhill side of a concrete foundation tall. Provides precise dimensions via two drawings plus several rounded dimensions in its text. It is a brick smoke stack or chimney, built in 1918 as part of the Washoe Smelter of the Anaconda Copper Mining Company (ACM) at Anaconda, Montana, in the United States. A terra cotta coating covered the entire brick chimney when new, but by the time the smelter closed in 1981, most had eroded away except for the upper 40%, exposing most of its bricks and reinforcing rods. The inside diameter at the bottom of the brick chimney is while that at the top is about . The stack and its viewing area are now the two-part Anaconda Smoke Stack State Park. Dimensions Brick chimney The overall height of the stack is , including a brick chimney tall and the downhill side of a concrete foundation high. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Missoula, Montana
Missoula ( ; fla, label=Salish language, Séliš, Nłʔay, lit=Place of the Small Bull Trout, script=Latn; kut, Tuhuⱡnana, script=Latn) is a city in the U.S. state of Montana; it is the county seat of Missoula County, Montana, Missoula County. It is located along the Clark Fork River near its confluence with the Bitterroot River, Bitterroot and Blackfoot River (Montana), Blackfoot Rivers in western Montana and at the convergence of five mountain ranges, thus it is often described as the "hub of five valleys". The 2020 United States Census shows the city's population at 73,489 and the population of the Missoula Metropolitan Area at 117,922. After Billings, Montana, Billings, Missoula is the second-largest city and metropolitan area in Montana. Missoula is home to the University of Montana, a public research university. The Missoula area began seeing settlement by people of European descent in 1858 including William Thomas Hamilton (frontiersman), William T. Hamilton, who set ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clark Fork River
The Clark Fork, or the Clark Fork of the Columbia River, is a river in the U.S. states of Montana and Idaho, approximately long. The largest river by volume in Montana, it drains an extensive region of the Rocky Mountains in western Montana and northern Idaho in the watershed of the Columbia River. The river flows northwest through a long valley at the base of the Cabinet Mountains and empties into Lake Pend Oreille in the Idaho Panhandle. The Pend Oreille River in Idaho, Washington, and British Columbia, Canada which drains the lake to the Columbia in Washington, is sometimes included as part of the Clark Fork, giving it a total length of , with a drainage area of . In its upper in Montana near Butte, it is known as Silver Bow Creek. Interstate 90 follows much of the upper course of the river from Butte to Saint Regis. The highest point within the river's watershed is Mount Evans at in Deer Lodge County, Montana along the Continental Divide. The Clark Fork is a Class I rive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deer Lodge, Montana
Deer Lodge is a city in and the county seat of Powell County, Montana, Powell County, Montana, United States. The population was 2,938 at the 2020 United States Census, 2020 census. Description The city is perhaps best known as the home of the Montana State Prison, a major local employer. The Montana State Hospital in Warm Springs, Montana, Warm Springs, and former state tuberculosis sanitarium in nearby Galen, Montana, Galen are the result of the power the western part of the state held over Montana at statehood due to the copper and mineral wealth in that area. Deer Lodge was also once an important railroad town, serving as a division headquarters for the Chicago, Milwaukee, St. Paul and Pacific Railroad ("the Milwaukee Road") before the railroad's local abandonment in 1980. The current Montana State Prison occupies a campus west of town. The former prison site, at the south end of Deer Lodge's Main Street, is now the Montana State Prison, Old Prison Museum. In addition to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
