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  • Notice - The USGS Water Resources Mission Area's priority is to maintain the safety and well-being of our communities, including providing critical situational awareness in times of flooding in all 50 U.S. states and additional territories. Our hydrologic monitoring stations continue to send data in near real-time to NWISWeb, and we are continuing critical water monitoring activities to protect life and property on a case-by-case basis. The health and safety of the public and our employees are our highest priorities, and we continue to follow guidance fromthe White House, the CDC, and state and local authorities.

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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 05420850 Little Wapsipinicon River near Oran, IA


Fayette County, Iowa
Hydrologic Unit Code 07080102
Latitude  42°42'52.9", Longitude  92°02'29.6" NAD83
Drainage area 94.1  square miles
Location of the site in Iowa