LOCATION.--Lat 42°58'55", long 96°00'03"
referenced to North American Datum of 1927, in NW 1/4 NE 1/4 NE 1/4
sec.11, T.94 N., R.44 W., Sioux County, IA, Hydrologic Unit 10230002,
on right bank 15 ft downstream from bridge on East Division Street in
Alton, 34.3 mi upstream from West Branch Floyd River, and 55.3 mi
upstream from mouth. (map)
DRAINAGE AREA.--268 mi2.
PERIOD OF RECORD.--Discharge records from October 1955 to current
year. Prior to December 1955, monthly mean discharge published in WSP
REVISED RECORDS.--WDR IA-82-1: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 1,269.55 ft above
National Geodetic Vertical Datum of 1929.