Description This dataset is a complete digital hydrologic unit boundary layer to the subwatershed (12-digit) 6th level at 1:24,000 scale. It consists of geo-referenced digital...
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Major rivers as derived from Pennsylvania Dept. of Transportation's streams database, which is organized by county.
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The local resolution basic hydrography dataset is a hybrid dataset developed by the West Virginia GIS Technical Center as part of the effort to create local resolution NHD data...
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A distributed archive of standardized geoscience spatial information and data for the nation. Developed by the USGS and State Geological Surveys.
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5 Resources
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