USGS Water-Year Summary 2022
07156900 CIMARRON RIVER NEAR FORGAN, OK
LOCATION - Lat 37°00'40", long 100°29'29" referenced to North American Datum of 1927, in sec.08, T.35 S., R.29 W., Meade County, KS, Hydrologic Unit 11040006, on downstream side of bridge on Kansas State Highway 23, 0.8 mi north of Oklahoma-Kansas State Line, 7.8 mi north of Forgan, and at mile 375.7.
DRAINAGE AREA - 8,486 mi² of which 3,286 mi² probably is noncontributing. from automated delineation using 10-meter National Elevation Dataset digital elevation model data dated 10/01/2006 and Watershed Boundary Dataset dated 10/01/2006, using Albers Equal-Area Projection, North American Datum 1983.
- WDR 2012: Drainage area.
PERIOD OF RECORD - October 1965 to September 1986, October 1987 to current year.
GAGE - Water-stage recorder. Datum of gage is 2321.11 feet above NAVD of 1988. The NAVD of 1988 datum was determined by a Level II GNSS survey (Reference Frame NAD_83(2011) (EPOCH:2010.0000) ITRF2014 (EPOCH:2022.5881) (GEOID18) by USGS on 8/22/2022 and tied to RM-5. Prior to 8/22/2022 the datum of gage was 2320.05 ft above NGVD of 1929.