105 dataset trovati

A GSA designated geographical segment of the United States represented by a number 1-11. Federal Facilities are geographically grouped by regions.

This data set 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-...

Chemistry, fish species, atmospheric pollutants, and temperature profile were collected using CTD casts and other collection methods in the Southern California Bight from 28...

This is a boundary file showing the catchment area for which each of the 6 DCF Regions is responsible. Catchment areas are comprised of complete Towns, but not necessarily...

The USGS 3D Hydrography Program (3DHP) ArcGIS REST service (3DHP_all) from The National Map is the first of several data services that will be delivered by the 3D Hydrography...