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Hydrologic Unit Map -- 1974, Idaho

January 1, 1974

This map and accompanying table show Hydrologic Units that are basically hydrographic in nature. The Cataloging Units shown will supplant the Cataloging Units previously used by the U.S. Geological Survey in its Catalog of Information on Water Data (1966-72). The previous U.S. Geological Survey Catalog-Indexing System was by map number and letter, such as 49M. The boundaries as shown have been adapted from "The Catalog of Information on Water Data" (1972), "Water Resources Regions and Subregions for the National Assessment of Water and Related Land Resources" by the U.S. Water Resources Council (1970), "River Basins of the United States" by the U.S. Soil Conservation Service (1963, 1970), "River Basin Maps Showing Hydrologic Stations" by the Inter-Agency Committee on Water Resources, Subcommittee on Hydrology (1961), and State planning maps.

Publication Year 1974
Title Hydrologic Unit Map -- 1974, Idaho
DOI 10.3133/hu12
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Hydrologic Unit
Series Number 12
Index ID hu12
Record Source USGS Publications Warehouse