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

Page Loading - Please Wait...

Click to hideNews Bulletins

Site Map for Iowa

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 06483290 Rock River below Tom Creek at Rock Rapids, IA

Lyon County, Iowa
Hydrologic Unit Code 10170204
Latitude  43°25'23.3", Longitude  96°09'53.7" NAD83
Drainage area 853  square miles
Gage datum 1,308.93 feet above NAVD88
Location of the site in Iowa