Warning: Javascript must be enabled to use all the features on this page!

Page Loading - Please Wait...

* We've detected you're using a mobile device. Find our Next Generation Station Page here.
Click to hideNews Bulletins
Click to hide state-specific text

Boating safety tips are available from the U.S. Coast Guard.

NOTE: Station Numbers for Iowa precipitation gages have changed (see list).

USGS 06483500 Rock River near Rock Valley, IA

  Stream Site

Latitude 43°12'54.3",   Longitude 96°17'42.1"   NAD83
Sioux County, Iowa, Hydrologic Unit 10170204
Drainage area: 1,592 square miles
Datum of gage: 1,223.39 feet above   NAVD88.
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    1990-10-01  2023-09-23  
 Daily Data
    Discharge, cubic feet per second  1948-06-11  2023-09-22  27497 
 Daily Statistics 
    Discharge, cubic feet per second  1948-06-11  2023-08-28 27472 
 Monthly Statistics 
    Discharge, cubic feet per second  1948-06  2023-08  
 Annual Statistics 
    Discharge, cubic feet per second  1948  2023  
 Peak streamflow 1897  2022-06-01  76 
 Field measurements 1948-06-11  2023-08-29  860 
 Field/Lab water-quality samples 1960-05-31  2009-08-17  247 
 Water-Year Summary 2006  2022  17 
 Revisions  Loading...
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