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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 05465700 Iowa River at Oakville, IA


Louisa County, Iowa
Hydrologic Unit Code 07080209
Latitude  41°06'11.5", Longitude  91°03'48.7" NAD83
Drainage area 12,630  square miles
Gage datum 535.64 feet above NGVD29
Location of the site in Iowa