USGS Water-Year Summary 2025
13215480 SOUTH FORK MALHEUR RIVER NR RIVERSIDE, OR
LOCATION - Lat 43°31'08.70", long 118°10'30.21" referenced to North American Datum of 1983, in SE 1/4 NE 1/4 sec.04, T.24 S., R.37 E., Malheur County, OR, Hydrologic Unit 17050116,
DRAINAGE AREA - 697 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - February 2024 to current year.
GAGE - Water-stage recorder. Datum of the gage is 3309.72ft above NAVD88.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 9,230 ft³/s Feb. 24, 2025, gage height, 16.09 ft; minimum, 0.01 ft³/s July 14, 2024, (estimated).