USGS Water-Year Summary 2021
09359020 ANIMAS RIVER BELOW SILVERTON, CO
LOCATION - Lat 37°47'18.00", long 107°40'05.60" referenced to North American Datum of 1983, in sec.20, T.41 N., R.7 W., San Juan County, CO, Hydrologic Unit 14080104, on right bank 200 ft downstream from Durango-Silverton Railroad crossing of the Animas River, 0.7 mi downstream from Mineral Creek, and 1.1 mi south of Silverton. Prior to Oct. 19, 2017, gage located 700 ft upstream at different datum.
DRAINAGE AREA - 146 mi².
PERIOD OF RECORD - October 1991 to current year.
GAGE - Water-stage recorder with satellite telemetry and crest-stage gage. Elevation of gage is 9,200 ft above NGVD of 1929, from topographic map. Prior to Oct. 19, 2017, gage located 700 ft upstream at different datum.
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum flood known occurred Oct. 5, 1911.