LOCATION.--Lat 43°18'17.7", long 91°47'43.4" referenced to North American Datum of 1927, in NW 1/4 NE 1/4 SW 1/4 sec.16, T.98 N., R.8 W., Winneshiek County, IA, Hydrologic Unit 07060002, on right bank 600 ft upstream from bridge on College Drive in Decorah, 0.8 mi downstream from Dry Run Creek Cutoff, 3.0 mi upstream from Trout Run, and 57.0 mi upstream from mouth. (map)

DRAINAGE AREA.--511 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD.--Discharge records from August 1951 to September 1983, October 2002 to current year; annual maximum discharge, water years 1984-1988; stage-only records from October 1999 to September 2002.

GAGE.--Water-stage recorder. Datum of gage is 850.00 ft above National Geodetic Vertical Datum of 1929.

WATER-QUALITY RECORDS

PERIOD OF RECORD.--Water years 1963-1965, 1967.

Advanced Hydrologic Prediction Service

National Streamflow Information Program