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State hydrologic unit maps

January 1, 1987

A series of uniform, nationally consistent State Hydrologic Unit Maps that accurately delineate the hydrographic boundaries of major U.S. river basins has been prepared by the U.S. Geological Survey in cooperation with the U.S. Water Resources Council. These maps provide a standardized base for use by Federal and State water resources agencies throughout the country.

Publication Year 1987
Title State hydrologic unit maps
DOI 10.3133/70039553
Publication Type Report
Publication Subtype USGS Unnumbered Series
Series Title General Information Product
Index ID 70039553
Record Source USGS Publications Warehouse