Layers for the Klamath/Trinity web map. These layers include location of dams, polyline layer of Klamath/Trinity basin and transect breaks of Arcata U.S. Fish and Wildlife Service Fisheries and Aquati
The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit data consistent with the national criteria for delineation and resolution. It defines the areal extent
Abstract: This file contains Hydrologic Unit (HU) polygon boundaries for the United States, Puerto Rico, and the U.S. Virgin Islands. The data is a seamless National...
Maps of trails, roads, and the Big Creek watershed in the Lucia/Big Creek area. Photocopies, originals, and traces of maps. Maps produced by Army Map Service and USGS. Eros Data Center computer printo