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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 05387500 Upper Iowa River at Decorah, IA


Winneshiek County, Iowa
Hydrologic Unit Code 07060002
Latitude  43°18'17.7", Longitude  91°47'43.4" NAD27
Drainage area 511  square miles
Gage datum 850.00 feet above NGVD29
Location of the site in Iowa