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Site Map for Iowa

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

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


USGS 05411500 Mississippi River at Clayton, IA


Clayton County, Iowa
Hydrologic Unit Code 07060003
Latitude  42°54'13", Longitude  91°08'42" NAD27
Drainage area 79,200  square miles
Gage datum 602.60 feet above NGVD29
Location of the site in Iowa