LOCATION.--Lat 41°18'02", long 93°02'43"
referenced to North American Datum of 1927, in NE 1/4 NE 1/4 SE 1/4
sec.16, T.75 N., R.19 W., Marion County, IA, Hydrologic Unit
07100009, on left bank 5 ft upstream from bridge on State Highway 92,
3.0 mi east of Knoxville, and 12.7 mi upstream from mouth. (map)
DRAINAGE AREA.--90.1 mi2.
SURFACE-WATER RECORDS
PERIOD OF RECORD.--Discharge records from July 1985 to current
year.
REVISED RECORDS.--WDR IA-97: (M).
GAGE.--Water-stage recorder. Datum of gage is 721.79 ft above
National Geodetic Vertical Datum of 1929.