USGS Water-Year Summary 2019
07338750 MOUNTAIN FORK AT SMITHVILLE, OK
LOCATION - Lat 34°27'44", long 94°38'06" referenced to North American Datum of 1927, in SE 1/4 SW 1/4 sec.13, T.1 S., R.25 E., McCurtain County, OK, Hydrologic Unit 11140108, on right downstream abutment of bridge on Highway 4, .5 mi east of Smithville, 0.6 mi downstream from Rock Creek, 3.5 mi upstream from Big Eagle Creek, and at mi 55.6.
DRAINAGE AREA - 322 mi². 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 OK-99-2: 1994(M); 1995(M). WDR 2012: Drainage area.
PERIOD OF RECORD - October 1991 to current year.
GAGE - Water-stage recorder. Datum of gage is 664.70 ft above NGVD of 1929.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge for period of record 65,200 ft³/s, December 28, 2015. Maximum gage height for period of record, 34.65 ft, December 28, 2015.