New - search and retrieve by 5th code watersheds in the NRIS Thematic Mapper.
NRIS is pleased to announce the availability of a new search option in the
NRIS Thematic Mapper. Now you can search and retrieve data using the NRCS 5th code watershed delineations. These are sub-divisions of the USGS 4th code hydrologic units (or subbasins).
What's New