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Welcome to the NWIS-Web for the Arizona Water Science Center
The majority of USGS Gaging Stations are funded though a cooperative program between the USGS other interested agencies.
Follow this link for information on the Cooperative Water Program with the USGS.
Arizona Water Science Center Home Page
Colorado Basin River Forecast Center (CBRFC) - provided by the National Weather Service, AHPS. CBRFC on a esri powered interactive map.
Threatened and Endangered USGS Gaging Stations in Arizona