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USGS 07097000 ARKANSAS RIVER AT PORTLAND, CO.

  Stream Site

DESCRIPTION:
Latitude 38°23'18",   Longitude 105°00'56"   NAD27
Fremont County, Colorado, Hydrologic Unit 11020002
Drainage area: 4,024 square miles
Datum of gage: 5,021.59 feet above   NGVD29.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    1999-03-26  2025-12-10  
 Daily Data
    Temperature, water, degrees Celsius  1994-10-01  2025-12-09  33137 
    Discharge, cubic feet per second  1939-06-01  2007-09-29  16922 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1982-11-12  2025-12-09  35834 
 Daily Statistics 
    Temperature, water, degrees Celsius  1994-10-01  2024-10-08 10599 
    Discharge, cubic feet per second  1939-06-01  2007-09-29 16922 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1982-11-12  2024-09-30 14273 
 Monthly Statistics 
    Temperature, water, degrees Celsius  1994-10  2024-10  
    Discharge, cubic feet per second  1939-06  2007-09  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1982-11  2024-09  
 Annual Statistics 
    Temperature, water, degrees Celsius  1995  2025  
    Discharge, cubic feet per second  1939  2007  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  1983  2024  
 Peak streamflow 1939-08-19  2007-06-26  48 
 Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP) 1906-06-16  2024-02-13  965 
 Water-Year Summary 2005  2024  14 
 Revisions  Loading...
OPERATION:
Record for this site is maintained by the USGS Colorado Water Science Center
Email questions about this site to Colorado Water Science Center Water-Data Inquiries