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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 an interactive map.
Threatened and Endangered USGS Gaging Stations in Arizona
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USGS 09402500 COLORADO RIVER NEAR GRAND CANYON, AZ

  Stream Site

DESCRIPTION:
Latitude 36°06'05",   Longitude 112°05'08"   NAD27
Coconino County, Arizona, Hydrologic Unit 15010001
Drainage area: 141,600 square miles
Contributing drainage area: 137,641 square miles,
Datum of gage: 2,418.70 feet above   NGVD29.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    1980-10-07  2026-01-20  
 Daily Data
    Temperature, water, degrees Celsius  1983-04-29  2003-03-30  2825 
    Discharge, cubic feet per second  1922-10-01  2026-01-18  37001 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1986-09-30  2003-03-30  2153 
 Daily Statistics 
    Temperature, water, degrees Celsius  1983-04-29  2003-03-30 2825 
    Discharge, cubic feet per second  1922-10-01  2025-08-19 36849 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1986-09-30  2003-03-30 2153 
 Monthly Statistics 
    Temperature, water, degrees Celsius  1983-04  2003-03  
    Discharge, cubic feet per second  1922-10  2025-08  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1986-09  2003-03  
 Annual Statistics 
    Temperature, water, degrees Celsius  1983  2003  
    Discharge, cubic feet per second  1923  2025  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1986  2003  
 Peak streamflow 1884  2023-04-25  104 
 Field measurements 1982-10-13  2025-12-09  500 
 Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP) 1925-08-23  2023-04-28  2123 
 Water-Year Summary 2006  2024  19 
 Revisions  Loading...
OPERATION:
Record for this site is maintained by the USGS Arizona Water Science Center
Email questions about this site to Arizona Water Science Center Water-Data Inquiries