LOCATION.--Lat 41°43'06", long 91°44'24"
  referenced to North American Datum of 1927, in SW 1/4 SE 1/4 SE 1/4
  sec.23, T.80 N., R.8 W., Johnson County, IA, Hydrologic Unit
  07080209, on left bank 15 ft downstream from bridge on Northwest
  Eagle Avenue, 0.2 mi west of Kent Park, 2.8 mi east of Oxford, 2.6 mi
  upstream from Buffalo Creek, and 13.5 mi upstream from mouth.
  (map)
  DRAINAGE AREA.--58.4 mi2.
  SURFACE-WATER RECORDS
  PERIOD OF RECORD.--Discharge records from November 1993 to current
  year.
  GAGE.--Water stage recorder. Datum of gage is 696.50 ft above
  National Geodetic Vertical Datum of 1929.