|
HU02
|
feature |
Two-digit Hydrologic Regions
|
|
HU04
|
feature |
Four-digit Hydrologic Subregion
|
|
HU06
|
feature |
Six-digit Hydrologic Basins
|
|
HU08
|
feature |
Eight-digit Hydrologic Subbasins
|
|
HU10
|
feature |
Ten-digit Watersheds
|
|
USGS National Aquifers
|
feature |
National Aquifers of the United States from USGS National Water Information System National Aquifer code list.
|
|
USGS Principal Aquifers
|
feature |
Principal Aquifers of the United States from 2003 USGS data release
|
|
USGS Secondary Hydrogeologic Regions
|
feature |
Secondary Hydrogeologic Regions of the Conterminous United States from 2018 USGS data release
|
|
Reference Gages
|
feature |
US Reference Stream Gage Monitoring Locations
|
|
Reference Mainstems
|
feature |
US Reference Mainstem Rivers
|
|
States
|
feature |
U.S. States
|
|
Counties
|
feature |
U.S. Counties
|
|
American Indian/Alaska Native Areas/Hawaiian Home Lands (AIANNH)
|
feature |
Native American Lands
|
|
Core-based statistical areas (CBSA)
|
feature |
U.S. Metropolitan and Micropolitan Statistical Areas
|
|
Urban Areas
|
feature |
Urbanized Areas and Urban Clusters (2010 Census)
|
|
Places
|
feature |
U.S. legally incororated and Census designated places
|
|
Public Water Systems
|
feature |
U.S. Public Water Systems
|
|
Reference Dams
|
feature |
US Reference Dams
|
