USGS Water-Year Summary 2024
09185600 Colorado River at Potash, UT
LOCATION - Lat 38°30'17", long 109°39'30" referenced to North American Datum of 1983, in NW 1/4 NE 1/4 NE 1/4 sec.36, T.26 S., R.20 E., Grand County, UT, Hydrologic Unit 14030005,
DRAINAGE AREA - 25,406 mi².
REVISIONS HISTORY - Prior to May 6, 2019 the datum of the gage was 3,980 ft above NGVD of 1929 from a topographic map.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Oct 29, 2014 to present.
GAGE - Water stage recorder. Elevation of the gage is 3,926.29 ft above NAVD of 1988 from a level 2 GNSS survey conducted on May 6, 2019.
COOPERATION - National Park Service.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood on Jul 4, 1884 reached a discharge of about 125,000 ft³/s, from flood record at Fruita, Colorado.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 36,500 ft³/s, Jun 11, 2019, gage height, 21.25 ft; minimum daily discharge, 1,750 (estimated) ft³/s, Jan 5, 2019.