LOCATION.--Lat 42°48'20", long 94°27'44"
referenced to North American Datum of 1927, in SW 1/4 SW 1/4 SW 1/4
sec.1, T.92 N., R.31 W., Pocahontas County, IA, Hydrologic Unit
07100002, on right bank on downstream side of bridge on County
Highway P15, 3.0 mi east of Rolfe, and 1.4 mi upstream from mouth.
(map)
DRAINAGE AREA.--96.6 mi2.
SURFACE-WATER RECORDS
PERIOD OF RECORD.--Stage-only records from March 2009 to current
year (no winter records).
GAGE.--Water-stage recorder. Datum of gage is 742.36 ft above
National Geodetic Vertical Datum of 1929 (levels by U.S. Army Corps
of Engineers).