USGS Water-Year Summary 2021
07126485 PURGATOIRE RIVER AT ROCK CROSSING NEAR TIMPAS, CO
LOCATION - Lat 37°37'06", long 103°35'35" referenced to North American Datum of 1927, in NE 1/4 SE 1/4 sec.10, T.28 S., R.55 W., Las Animas County, CO, Hydrologic Unit 11020010, on left bank at Rock Crossing, 1.4 mi upstream from Minnie Canyon, 2.2 mi downstream from Beaty Canyon, and 17 mi southeast of Timpas.
DRAINAGE AREA - 2,758 mi² of which 11.8 mi² probably is noncontributing.
- WDR CO-87-1: 1984-86 (M). WDR-US-2011: Drainage area.
PERIOD OF RECORD - June 1983 to September 2004, October 2004 to current year (seasonal records only).
GAGE - Water-stage recorder with satellite telemetry and crest-stage gage. Elevation of gage is 4,350 ft above NGVD of 1929, from topographic map. June 1, 1983 to July 17, 1985, at site 500 ft downstream at same datum.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 11,400 ft³/s, July 9, 1992, from slope-area measurement of peak flow, gage height, 17.90 ft, from floodmarks.