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Keller, Washington
Keller is an unincorporated area, unincorporated community and census-designated place (CDP) in southwestern Ferry County, Washington, Ferry County in the northeastern part of the U.S. state of Washington (state), Washington. As of the 2010 United States Census, 2010 census, the population was 234. History The town is located in the valley of the Sanpoil River, and was founded in 1898 by Baby Ray Peone, a local fisherman. The town was located in the area known as "God's Country" (or "Old Keller" to the locals). At its height the town had an estimated population of 3,500 and even featured a minor league baseball team and red light district. The town was moved several times beginning in 1941 due to backwatering from the Grand Coulee Dam which flooded its previous locations, and is now located north of the Columbia River. The series of moves seriously reduced its population over time. The town is encompassed by the Colville Indian Reservation, which has an estimated population of r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Census-designated Place
A census-designated place (CDP) is a concentration of population defined by the United States Census Bureau for statistical purposes only. CDPs have been used in each decennial census since 1980 as the counterparts of incorporated places, such as self-governing cities, towns, and villages, for the purposes of gathering and correlating statistical data. CDPs are populated areas that generally include one officially designated but currently unincorporated community, for which the CDP is named, plus surrounding inhabited countryside of varying dimensions and, occasionally, other, smaller unincorporated communities as well. CDPs include small rural communities, edge cities, colonias located along the Mexico–United States border, and unincorporated resort and retirement communities and their environs. The boundaries of any CDP may change from decade to decade, and the Census Bureau may de-establish a CDP after a period of study, then re-establish it some decades later. Most unin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sanpoil River
The Sanpoil River (also spelled San Poil) is a tributary of the Columbia River, in the U.S. state of Washington. The river is named for the Sanpoil, the Interior Salish people who live along the river course. The name is from the Okanagan term '' npʕʷílx', meaning "people of the gray country", or "gray as far as one can see". Course The Sanpoil River originates in the Kettle River Range of northeast central Washington, as a confluence of the North Fork Sanpoil and South Fork Sanpoil rivers. It flows west into the Curlew Lake valley and turns south at Torboy where it enters Sanpoil Lake. After flowing out of Sanpoil Lake it is joined by O'Brien Creek near Pine Grove and flows west again through the Ferry County Fairgrounds to the main Sanpoil Valley where it again turns south. Just after Turning south below Republic, its joined by Granite Creek from the west. The rest of the course flows south through the Colville National Forest, Okanogan–Wenatchee National Forest, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Census-designated Places In Washington (state) ...
The following is a complete list of the 345 populated places in the U.S. state of Washington delineated as census-designated places (CDPs) by the United States Census. These include unincorporated villages, groups of villages, commercial developments, and Air Force Bases. Population data are included in the list. See also * List of cities in Washington * List of towns in Washington * List of undesignated communities in Washington References {{DEFAULTSORT:List Of Census-Designated Places In Washington Washington Census A census is the procedure of systematically acquiring, recording and calculating information about the members of a given population. This term is used mostly in connection with national population and housing censuses; other common censuses incl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaching (metallurgy)
Leaching is a process widely used in extractive metallurgy where ore is treated with chemicals to convert the valuable metals within into soluble salts while the impurity remains insoluble. These can then be washed out and processed to give the pure metal; the materials left over are commonly known as tailings. Compared to pyrometallurgy, leaching is easier to perform, requires less energy and is potentially less harmful as no gaseous pollution occurs. Drawbacks of leaching include its lower efficiency and the often significant quantities of waste effluent and tailings produced, which are usually either highly acidic or alkali as well as toxic (e.g. bauxite tailings). There are four types of leaching: # Cyanide leaching (e.g. gold ore) # Ammonia leaching (e.g. crushed ore) # Alkali leaching (e.g. bauxite ore) # Acid leaching (e.g. sulfide ore) Chemistry Leaching is done in long pressure vessels which are cylindrical (horizontal or vertical) or of horizontal tube form know ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uranium
Uranium is a chemical element with the symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Uranium is weakly radioactive because all isotopes of uranium are unstable; the half-lives of its naturally occurring isotopes range between 159,200 years and 4.5 billion years. The most common isotopes in natural uranium are uranium-238 (which has 146 neutrons and accounts for over 99% of uranium on Earth) and uranium-235 (which has 143 neutrons). Uranium has the highest atomic weight of the primordially occurring elements. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. It occurs naturally in low concentrations of a few parts per million in soil, rock and water, and is commercially extracted from uranium-bearing minerals such as uraninite. In nature, uranium is found as uranium-238 (99. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molybdenum
Molybdenum is a chemical element with the symbol Mo and atomic number 42 which is located in period 5 and group 6. The name is from Neo-Latin ''molybdaenum'', which is based on Ancient Greek ', meaning lead, since its ores were confused with lead ores. Molybdenum minerals have been known throughout history, but the element was discovered (in the sense of differentiating it as a new entity from the mineral salts of other metals) in 1778 by Carl Wilhelm Scheele. The metal was first isolated in 1781 by Peter Jacob Hjelm. Molybdenum does not occur naturally as a free metal on Earth; it is found only in various oxidation states in minerals. The free element, a silvery metal with a grey cast, has the sixth-highest melting point of any element. It readily forms hard, stable carbides in alloys, and for this reason most of the world production of the element (about 80%) is used in steel alloys, including high-strength alloys and superalloys. Most molybdenum compounds have low solubili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open-pit Mining
Open-pit mining, also known as open-cast or open-cut mining and in larger contexts mega-mining, is a surface mining technique of extracting rock or minerals from the earth from an open-air pit, sometimes known as a borrow. This form of mining differs from extractive methods that require tunnelling into the earth, such as long wall mining. Open-pit mines are used when deposits of commercially useful ore or rocks are found near the surface. It is applied to ore or rocks found at the surface because the overburden is relatively thin or the material of interest is structurally unsuitable for tunnelling (as would be the case for cinder, sand, and gravel). In contrast, minerals that have been found underground but are difficult to retrieve due to hard rock, can be reached using a form of underground mining. To create an open-pit mine, the miners must determine the information of the ore that is underground. This is done through drilling of probe holes in the ground, then plotting ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sanpoil Tribe
The Sanpoil (or ''San Poil'') are a Native Americans in the United States, Native American people of the U.S. state of Washington (state), Washington. They are one of the Salish peoples and are one of the twelve members of the Confederated Tribes of the Colville Reservation. The name Sanpoil comes from the Colville-Okanagan language, Okanagan ''[snpʕwílx]'', "gray as far as one can see". It has been Folk etymology, folk-etymologized as coming from the French ''sans poil'', "without fur". The Yakama people know the tribe as Hai-ai'-nlma or Ipoilq. The Sanpoil call themselves Nesilextcl'n, .n.selixtcl'n, probably meaning "Salish speaking," and N'pooh-le, a shortened form of the name. The Sanpoil had a semi-democratic system of government with various chiefs representing each community within the tribe. Heredity was not a requirement for chiefs. In later years, United States government officials began recognizing one chief at a time. The last four officially recognized chiefs of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colville Indian Reservation
The Colville Indian Reservation is an Indian reservation in the northwest United States, in north central Washington, inhabited and managed by the Confederated Tribes of the Colville Reservation, which is federally recognized. Established in 1872, the reservation currently consists of , located primarily in the southeastern section of Okanogan County and the southern half of Ferry County. It also includes other pieces of trust land in eastern Washington, including in Chelan County, just to the northwest of the city of Chelan. The reservation's name is adapted from that of Fort Colville, which was named by British colonists for Andrew Colville, a London governor of the Hudson's Bay Company. The Confederated Tribes have 8,700 descendants from twelve aboriginal tribes. The tribes are known in English as: the Colville, Nespelem, Sanpoil, Lakes (after the Arrow Lakes of British Columbia, or Sinixt), Palus, Wenatchi, Chelan, Entiat, Methow, southern Okanagan, Sink ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columbia River
The Columbia River (Upper Chinook: ' or '; Sahaptin: ''Nch’i-Wàna'' or ''Nchi wana''; Sinixt dialect'' '') is the largest river in the Pacific Northwest region of North America. The river rises in the Rocky Mountains of British Columbia, Canada. It flows northwest and then south into the U.S. state of Washington, then turns west to form most of the border between Washington and the state of Oregon before emptying into the Pacific Ocean. The river is long, and its largest tributary is the Snake River. Its drainage basin is roughly the size of France and extends into seven US states and a Canadian province. The fourth-largest river in the United States by volume, the Columbia has the greatest flow of any North American river entering the Pacific. The Columbia has the 36th greatest discharge of any river in the world. The Columbia and its tributaries have been central to the region's culture and economy for thousands of years. They have been used for transportation since a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grand Coulee Dam
Grand Coulee Dam is a concrete gravity dam on the Columbia River in the U.S. state of Washington, built to produce hydroelectric power and provide irrigation water. Constructed between 1933 and 1942, Grand Coulee originally had two powerhouses. The third powerhouse ("Nat"), completed in 1974 to increase energy production, makes Grand Coulee the largest power station in the United States by nameplate-capacity at 6,809 MW. The proposal to build the dam was the focus of a bitter debate during the 1920s between two groups. One group wanted to irrigate the ancient Grand Coulee with a gravity canal while the other pursued a high dam and pumping scheme. The dam supporters won in 1933, but, although they fully intended otherwise, the initial proposal by the Bureau of Reclamation was for a "low dam" tall which would generate electricity without supporting irrigation. That year, the U.S. Bureau of Reclamation and a consortium of three companies called MWAK (Mason-Walsh-Atkinson Kier ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
