LOCATION.--Lat 42°10'08.7", long 94°43'33.7" referenced to North American Datum of 1983, in SW 1/4 SW 1/4 NW 1/4 sec.17, T.85 N., R.33 W., Carroll County, IA, Hydrologic Unit 07100006, on left bank 15 ft downstream from bridge on State Highway 286, 1.5 mi southeast of Lanesboro, 1.5 mi downstream from Elk Run, 0.5 mi upstream from Morrowbone Creek, 98.5 mi upstream from mouth, and 129 mi upstream from mouth of Raccoon River. (map)

DRAINAGE AREA.--1,238 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD.--Stage-only records from March 2009 to current year (no winter records).

GAGE.--Water-stage recorder. Datum of gage is 1,055.88 ft above North American Vertical Datum of 1988.

Advanced Hydrologic Prediction Service

U.S. Army Corps of Engineers - Rock Island District