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Filters: Tags: Virginia Department of Mines, Minerals and Energy (X)

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This dataset is a polygon coverage of the thickness of the overburden of the Pocahontas No. 3 coal bed, in feet. It was produced by importing 1:100,000 (30-minute) and 1:24,000 scale (7.5-minute) digital elevation models (DEM) into ARC, and merging the lattices into one. The structure elevation grid for the Pocahontas No. 3 coal bed was subtracted from the surface elevation grid, creating overburden thickness. This grid was contoured within the known extent of the Pocahontas No. 3 coal bed into 200, 500, 1000, 2000, and 3000 foot lines. This vector file was imported to ARC. Polygon attributes include a code for the USGS overburden category (Coal Resource Classification of the U.S. Geological Survey, USGS, Circular...
Categories: Web Site; Tags: 51027 = Buchanan, 51051 = Dickenson, 51167 = Russell, 51169 = Scott, 51185 = Tazewell, All tags...
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Background information.— The Powell and Clinch Rivers provide vital habitat for many forms of wildlife and are inhabited by one of the world’s richest and most diverse assemblages of freshwater mussels (U.S. Fish and Wildlife Service, 2003). The rivers are also multiple-use recreation areas and a valuable water source that supplies water for the residents of Lee County, Virginia. The Lone Mountain coal slurry spill released sediment and hazardous substances affecting water quality and impacting 12 Federally listed mussels and critical habitat for 2 Federally listed fish. Fish and mussel habitat depends on the riparian habitats surrounding the river. In order to recover lost fish and mussel habitat, the Lone Mountain...
Categories: Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AmeriCorps National Civilian Community Corp, AmeriCorps National Civilian Community Corp, Aquatic, Bank stabilization/erosion control, Bank stabilization/erosion control, All tags...
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Background information.—The Powell River watershed has a long history of coal mining. Prior to August 3, 1977, Virginia laws and regulations required the reclamation of areas affected by coal surface mining, but there were no regulations addressing reclamation of underground mines. Flows or seeps from these abandoned mines have long degraded the waters of the Powell River watershed (U.S. Department of Agriculture, 2008). Water that is discharged from these sites can be highly acidic and it commonly contains high concentrations of dissolved iron and aluminum sulfates. This acid mine drainage degrades the water quality of streams and water supplies and is a major contributor to aquatic habitat degradation. Led by...
Categories: Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Acid mine drainage (AMD) abatement, Acid mine drainage abatement, Aquatic, Barren/rock, Daniel Boone Soil and Water Conservation District, All tags...


    map background search result map search result map Overburden thickness categories of Pocahontas No. 3 coal bed Lone Mountain NRDAR Tipple Site Riparian Restoration and Outdoor Classroom Restoration Lone Mountain NRDAR Acid Mine Drainage Restoration Overburden thickness categories of Pocahontas No. 3 coal bed Lone Mountain NRDAR Tipple Site Riparian Restoration and Outdoor Classroom Restoration Lone Mountain NRDAR Acid Mine Drainage Restoration