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Matches in DBpedia 2014 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 in 1982. When the pit was closed, the water pumps in the nearby Kelly shaft, at a depth of 3,800 feet, 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 on Earth Day 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 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 fssphotos.asp.
• Berkeley_Pit wikiPageExternalLink www.pitwatch.org.
• Berkeley_Pit wikiPageExternalLink ff_lagoon.
• Berkeley_Pit wikiPageID "550323".
• Berkeley_Pit wikiPageRevisionID "606327996".
• 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 contaminants "Arsenic, cadmium, copper, zinc, lead".
• Berkeley_Pit county Silver_Bow_County,_Montana.
• Berkeley_Pit hasPhotoCollection Berkeley_Pit.
• 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 proposed "12".
• Berkeley_Pit state Montana.
• Berkeley_Pit subject Category:1955_establishments_in_Montana.
• Berkeley_Pit subject Category:1983_establishments_in_Montana.
• Berkeley_Pit subject Category:ARCO.
• Berkeley_Pit subject Category:Butte,_Montana.
• Berkeley_Pit subject Category:Copper_mines_in_the_United_States.
• Berkeley_Pit subject Category:Environmental_disasters_in_the_United_States.
• Berkeley_Pit subject Category:Geography_of_Silver_Bow_County,_Montana.
• Berkeley_Pit subject Category:Geology_of_Montana.
• Berkeley_Pit subject Category:History_of_Montana.
• Berkeley_Pit subject Category:Mines_in_Montana.
• Berkeley_Pit subject Category:Superfund_sites_in_Montana.
• Berkeley_Pit subject Category:Surface_mines_in_the_United_States.
• Berkeley_Pit subject Category:Visitor_attractions_in_Silver_Bow_County,_Montana.
• Berkeley_Pit point "46.01555555555556 -112.51027777777777".
• Berkeley_Pit type Artifact100021939.
• Berkeley_Pit type CopperMine103104147.
• Berkeley_Pit type CopperMinesInTheUnitedStates.
• Berkeley_Pit type Excavation103302121.
• Berkeley_Pit type GeographicalArea108574314.
• Berkeley_Pit type Location100027167.
• Berkeley_Pit type Mine103768346.
• Berkeley_Pit type MinesInMontana.
• Berkeley_Pit type Object100002684.
• Berkeley_Pit type PhysicalEntity100001930.
• Berkeley_Pit type Region108630985.
• Berkeley_Pit type Site108651247.
• Berkeley_Pit type SuperfundSites.
• Berkeley_Pit type SurfaceMinesInTheUnitedStates.
• Berkeley_Pit type Tract108673395.
• Berkeley_Pit type Whole100003553.
• Berkeley_Pit type YagoGeoEntity.
• Berkeley_Pit type YagoLegalActorGeo.
• Berkeley_Pit type YagoPermanentlyLocatedEntity.
• Berkeley_Pit type SpatialThing.
• Berkeley_Pit comment "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.".
• Berkeley_Pit label "Berkeley Pit".
• Berkeley_Pit label "Berkeley Pit".
• Berkeley_Pit label "Berkeley Pit".
• Berkeley_Pit label "Berkeley Pit".
• Berkeley_Pit label "Berkeley Pit".
• Berkeley_Pit label "Berkeley Pit".
• Berkeley_Pit label "Беркли-Пит".
• Berkeley_Pit sameAs Berkeley_Pit.
• Berkeley_Pit sameAs Berkeley_Pit.
• Berkeley_Pit sameAs Berkeley_Pit.
• Berkeley_Pit sameAs Berkeley_Pit.
• Berkeley_Pit sameAs Berkeley_Pit.
• Berkeley_Pit sameAs m.02p27l.
• Berkeley_Pit sameAs 5639613.
• Berkeley_Pit sameAs Q820869.
• Berkeley_Pit sameAs Q820869.
• Berkeley_Pit sameAs Berkeley_Pit.
• Berkeley_Pit lat "46.01555555555556".
• Berkeley_Pit long "-112.51027777777777".
• Berkeley_Pit wasDerivedFrom Berkeley_Pit?oldid=606327996.
• Berkeley_Pit depiction Berkeley_Pit_Butte,_Montana.jpg.
• Berkeley_Pit isPrimaryTopicOf Berkeley_Pit.