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This data was developed by the United States Forest Service, and is frequently updated as boundaries are corrected or adjusted. There are several datasets available, each...
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Gathering Resources...Census tracts are small, relatively permanent statistical subdivisions of a county (or statistical equivalent of a county), and are defined by local participants as part of the...-
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Gathering Resources..."The Geological Society of America’s (GSA) Geologic Map of North America (Reed and others, 2005; 1:5,000,000) shows the geology of a significantly large area of the Earth,...-
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Gathering Resources...From the National Geologic Map Database site: "Geologic map of part of the Hickman quadrangle, Fulton County, Kentucky and Mississippi County, Missouri"-
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Gathering Resources...Cell maps for each oil and gas assessment unit were created by the USGS as a method for illustrating the degree of exploration, type of production, and distribution of...-
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Gathering Resources...From the site: "A GIS database of geologic units and structural features in North Carolina, with lithology, age, data structure, and format written and arranged just like the...-
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Gathering Resources...From the site: "A GIS database of geologic units and structural features in Pennsylvania, with lithology, age, data structure, and format written and arranged just like the...-
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Gathering Resources...From the site: "This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The...-
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Gathering Resources...From the site: "This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The...-
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Gathering Resources...From the site: "This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The...-
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Gathering Resources...From the site: "Geochemical analysis of rock samples collected and analyzed by the USGS. This dataset includes and supersedes rock data formerly released as "Geochemistry of...-
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Gathering Resources...From the site: "A GIS database of geologic units and structural features in Virginia, with lithology, age, data structure, and format written and arranged just like the other...-
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Gathering Resources...From the site: "This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The...-
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Gathering Resources...From the site: “A Digital Raster Graphic (DRG) is a scanned image of a U.S. Geological Survey (USGS) topographic map. An unclipped scanned image includes all marginal...-
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Gathering Resources...From the site: “A Digital Raster Graphic (DRG) is a scanned image of a U.S. Geological Survey (USGS) topographic map. An unclipped scanned image includes all marginal...-
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Gathering Resources...From the site: "This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The...-
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Gathering Resources...From the site: "Coal Pillar Locations are pillars of coal that must remain in place to provide support for a coal mine."-
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Gathering Resources...From the site: "The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit...-
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Gathering Resources...From the site: "This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The...-
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Gathering Resources...From the site: “The Geologic Atlas of the United States is a set of 227 folios published by the U.S. Geological Survey between 1894 and 1945. Each folio includes both...-
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