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USGS 06483500 Rock River near Rock Valley, IA

  Stream Site

Latitude 43°12'52",   Longitude 96°17'39"   NAD27
Sioux County, Iowa, Hydrologic Unit 10170204
Drainage area: 1,592 square miles
Datum of gage: 1,222.54 feet above   NGVD29.
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    1990-10-01  2018-03-19  
 Daily Data
    Discharge, cubic feet per second  1948-06-11  2018-03-18  25482 
 Daily Statistics 
    Discharge, cubic feet per second  1948-06-11  2017-12-17 25392 
 Monthly Statistics 
    Discharge, cubic feet per second  1948-06  2017-12  
 Annual Statistics 
    Discharge, cubic feet per second  1948  2018  
 Peak streamflow 1897  2016-05-02  70 
 Field measurements 1948-06-11  2018-02-06  810 
 Field/Lab water-quality samples 1960-05-31  2009-08-17  247 
 Water-Year Summary 2006  2017  12 
Record for this site is maintained by the USGS Iowa Water Science Center
Email questions about this site to Iowa Water Science Center Water-Data Inquiries