Twelve-digit Subwatershed Boundaries: Indiana, 2011
- Sally L. Letsinger (digital compiler), U.S. Department of Agriculture, Natural Resources Conservation Service (digital compiler), Indiana Geological Survey (digital compiler), and U.S. Geological Survey (compiler, digital compiler)
- The following is extracted from USDA, NRCS metadata -- This data set, part of the Watershed Boundary data set (WBD), is a complete digital hydrologic unit boundary layer to the Subwatershed (12-digit) 6th level for the entire United States. This data set consists of geo-referenced digital data and associated attributes created in accordance with the Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary data set; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3 (04/01/2009). . Polygons are attributed with hydrologic unit codes for 4th level subbasins, 5th level watersheds, 6th level subwatersheds, name, size, downstream hydrologic unit, type of watershed, noncontributing areas and flow modification.
- Indiana, United States
- Inland Waters, Farming, and Hydrology
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