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Water Resources of the United States

Some Background Data Sets for Water Resources

Here are some background data sets commonly used in water-resources studies. They represent only a small subset of USGS data holdings for basemaps. For more information on USGS maps see the
USGS mapping pages.

National Coverages

National Water Quality Assessment (NAWQA) Program Coverages

Selected Regional and Local Data Sets

  • Watershed Boundaries and Digital Elevation Model of Oklahoma Derived from 1:100,000-scale Digital Topographic Maps (This information no longer available from this site)

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