LOCATION.--Lat 42°15'07", long 93°59'48"
  referenced to North American Datum of 1927, in NE 1/4 NW 1/4 NE 1/4
  sec.21, T.86 N., R.27 W., Webster County, IA, Hydrologic Unit
  07100004, on right downstream side of bridge on State Highway 175,
  4.0 mi southwest of Stratford, 0.1 mi downstream from Skillet Creek,
  7.3 mi downstream from Boone River, and 265.0 mi upstream from mouth.
  (map)
  DRAINAGE AREA.--5,452 mi2.
  SURFACE-WATER RECORDS
  PERIOD OF RECORD.--Discharge records from October 1967 to current
  year. April 1920 to September 1968, at site 18.5 mi downstream
  published as "near Boone" (station 05481500). Records are
  not equivalent because of difference in drainage area.
  GAGE.--Water-stage recorder. Datum of gage is 894.00 ft above
  National Geodetic Vertical Datum of 1929.
  REMARKS.--Occasional minor regulation caused by dam at Fort
  Dodge.