Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Berkeley_Pit> ?p ?o }
- Berkeley_Pit abstract "The Berkeley Pit is a former open pit copper mine located in Butte, Montana, United States. It is one mile long by half a mile wide with an approximate depth of 1,780 feet (540 m). It is filled to a depth of about 900 feet (270 m) with water that is heavily acidic (2.5 pH level), about the acidity of cola or lemon juice. As a result, the pit is laden with heavy metals and dangerous chemicals that leach from the rock, including copper, arsenic, cadmium, zinc, and sulfuric acid.The mine was opened in 1955 and operated by Anaconda Copper and later by the Atlantic Richfield Company (ARCO), until its closure on Earth Day 1982. When the pit was closed, the water pumps in the nearby Kelley Mine, 3,800 feet below the surface, were turned off, and groundwater from the surrounding aquifers began to slowly fill the pit, rising at about the rate of one foot a month. Since the pit closure in 1982, the level has risen to within 150 feet of the natural groundwater level. The pit and its water present a serious environmental problem because the water, with dissolved oxygen, allows pyrite and sulfide minerals in the ore and wall rocks to decay, releasing acid. When the pit water level eventually reaches the natural water table, estimated to occur by around 2020, the pit water will reverse flow back into surrounding groundwater, polluting into Silver Bow Creek which is the headwaters of Clark Fork River. The acidic water in the pit carries a heavy load of dissolved heavy metals. In fact, the water contains so much dissolved metal (up to 187 ppm Cu) that some material is mined directly from the water.In the 1990s plans were devised for solving the groundwater problem. Water flowing into the pit has been diverted to slow the rise of the water level. Plans have been made for more extensive treatment in the future. The Berkeley Pit has since become one of the largest Superfund sites.The pit is currently a tourist attraction, with an adjacent gift shop. A $2 admission fee is charged to go out on the viewing platform.".
- Berkeley_Pit thumbnail Berkeley_Pit_Butte,_Montana.jpg?width=300.
- Berkeley_Pit wikiPageExternalLink fssphotos.mcpx.
- Berkeley_Pit wikiPageExternalLink images.php3?img_id=17456.
- Berkeley_Pit wikiPageExternalLink the_berkeley_pit.
- Berkeley_Pit wikiPageExternalLink maps?f=q&hl=en&ie=UTF8&ll=46.016218,-112.511501&spn=0.024379,0.058365&t=h&z=14&om=1.
- Berkeley_Pit wikiPageExternalLink casualties-of-copper-the-berkeley-pit-montana.
- Berkeley_Pit wikiPageExternalLink www.pitwatch.org.
- Berkeley_Pit wikiPageExternalLink ff_lagoon.
- Berkeley_Pit wikiPageID "550323".
- Berkeley_Pit wikiPageLength "11455".
- Berkeley_Pit wikiPageOutDegree "64".
- Berkeley_Pit wikiPageRevisionID "696558703".
- Berkeley_Pit wikiPageWikiLink ARCO.
- Berkeley_Pit wikiPageWikiLink Acid.
- Berkeley_Pit wikiPageWikiLink Acid_mine_drainage.
- Berkeley_Pit wikiPageWikiLink Anaconda_Copper.
- Berkeley_Pit wikiPageWikiLink Arsenic.
- Berkeley_Pit wikiPageWikiLink Aspergillosis.
- Berkeley_Pit wikiPageWikiLink Autopsy.
- Berkeley_Pit wikiPageWikiLink Berkeleydione.
- Berkeley_Pit wikiPageWikiLink Berkeleytrione.
- Berkeley_Pit wikiPageWikiLink Berkelic_acid.
- Berkeley_Pit wikiPageWikiLink Butte,_Montana.
- Berkeley_Pit wikiPageWikiLink Cadmium.
- Berkeley_Pit wikiPageWikiLink Category:1955_establishments_in_Montana.
- Berkeley_Pit wikiPageWikiLink Category:1983_establishments_in_Montana.
- Berkeley_Pit wikiPageWikiLink Category:ARCO.
- Berkeley_Pit wikiPageWikiLink Category:Butte,_Montana.
- Berkeley_Pit wikiPageWikiLink Category:Copper_mines_in_the_United_States.
- Berkeley_Pit wikiPageWikiLink Category:Environmental_disasters_in_the_United_States.
- Berkeley_Pit wikiPageWikiLink Category:Geography_of_Silver_Bow_County,_Montana.
- Berkeley_Pit wikiPageWikiLink Category:Geology_of_Montana.
- Berkeley_Pit wikiPageWikiLink Category:Historic_American_Engineering_Record_in_Montana.
- Berkeley_Pit wikiPageWikiLink Category:History_of_Montana.
- Berkeley_Pit wikiPageWikiLink Category:Mines_in_Montana.
- Berkeley_Pit wikiPageWikiLink Category:Superfund_sites_in_Montana.
- Berkeley_Pit wikiPageWikiLink Category:Surface_mines_in_the_United_States.
- Berkeley_Pit wikiPageWikiLink Category:Visitor_attractions_in_Butte,_Montana.
- Berkeley_Pit wikiPageWikiLink Chemocline.
- Berkeley_Pit wikiPageWikiLink Clark_Fork_River.
- Berkeley_Pit wikiPageWikiLink Colorado_State_University.
- Berkeley_Pit wikiPageWikiLink Copper.
- Berkeley_Pit wikiPageWikiLink Earth_Day.
- Berkeley_Pit wikiPageWikiLink Gold.
- Berkeley_Pit wikiPageWikiLink Groundwater.
- Berkeley_Pit wikiPageWikiLink IA,_The_Journal_of_the_Society_for_Industrial_Archeology.
- Berkeley_Pit wikiPageWikiLink List_of_Superfund_sites_in_Montana.
- Berkeley_Pit wikiPageWikiLink Mining.
- Berkeley_Pit wikiPageWikiLink Montana.
- Berkeley_Pit wikiPageWikiLink Open-pit_mining.
- Berkeley_Pit wikiPageWikiLink PH.
- Berkeley_Pit wikiPageWikiLink Parts-per_notation.
- Berkeley_Pit wikiPageWikiLink Pit_water.
- Berkeley_Pit wikiPageWikiLink Poison.
- Berkeley_Pit wikiPageWikiLink Pyrite.
- Berkeley_Pit wikiPageWikiLink Sea_level.
- Berkeley_Pit wikiPageWikiLink Silver.
- Berkeley_Pit wikiPageWikiLink Silver_Bow_County,_Montana.
- Berkeley_Pit wikiPageWikiLink Silver_Bow_Creek.
- Berkeley_Pit wikiPageWikiLink Snow_goose.
- Berkeley_Pit wikiPageWikiLink Sulfuric_acid.
- Berkeley_Pit wikiPageWikiLink Superfund.
- Berkeley_Pit wikiPageWikiLink Toxic_heavy_metal.
- Berkeley_Pit wikiPageWikiLink United_States.
- Berkeley_Pit wikiPageWikiLink Vein_(geology).
- Berkeley_Pit wikiPageWikiLink Wired_(website).
- Berkeley_Pit wikiPageWikiLink Zinc.
- Berkeley_Pit wikiPageWikiLink File:Berkeley_Pit_Butte,_Montana.jpg.
- Berkeley_Pit wikiPageWikiLink File:Berkeley_pit1984.jpg.
- Berkeley_Pit wikiPageWikiLink File:Butte_MT_Berkeley_Pit_April_2005_Composite_Fisheye_View.jpg.
- Berkeley_Pit wikiPageWikiLink File:Butte_MT_Berkley_Pit_close_up_of_telephone_polls_for_scale.jpg.
- Berkeley_Pit wikiPageWikiLinkText "Berkeley Pit".
- Berkeley_Pit wikiPageWikiLinkText "Silver Bow Creek/Butte".
- Berkeley_Pit cap "2".
- Berkeley_Pit caption "Shows the terraced levels and access roadways of the open mine pits at the Berkeley Pit section.".
- Berkeley_Pit cerclisId "MTD980502777".
- Berkeley_Pit city Butte,_Montana.
- Berkeley_Pit color "1".
- Berkeley_Pit contaminants "Arsenic, cadmium, copper, zinc, lead".
- Berkeley_Pit county Silver_Bow_County,_Montana.
- Berkeley_Pit id "mt0098".
- Berkeley_Pit link "no".
- Berkeley_Pit listed "1983-08-09".
- Berkeley_Pit mapCaption "Berkeley Pit's location in Montana.".
- Berkeley_Pit name "Silver Bow Creek/Butte Area".
- Berkeley_Pit photos "3".
- Berkeley_Pit proposed "12".
- Berkeley_Pit state Montana.
- Berkeley_Pit survey "MT-36-D".
- Berkeley_Pit title "Butte Mineyards, Berkeley Pit, Butte, Silver Bow County, MT".
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