Hydrologic Data Sites for Sanjuan County, Utah
This map shows the USGS (United States Geologic Survey), NWIS (National
Water Inventory System) Hydrologic Data Sites for San Juan County, Utah.
		
The scope and purpose of NWIS is defined on the web site:
http://water.usgs.gov/public/pubs/FS/FS-027-98/