USGS Water-Year Summary 2019
09486520 SANTA CRUZ RIVER AT TRICO ROAD, NEAR MARANA, AZ
LOCATION - Lat 32°28'17", long 111°18'25" referenced to North American Datum of 1927, in NE 1/4 SE 1/4 sec.15, T.11 S., R.10 E., Pima County, AZ, Hydrologic Unit 15050303, on right bank 750 ft upstream from Trico Road bridge, 5 mi west of Marana, and 24 mi northwest of Tucson.
DRAINAGE AREA - 3,641 mi², of which 397 mi² are in Mexico.
PERIOD OF RECORD - Apr. 1989 to current year.
GAGE - Water-stage recorder. Elevation of gage is 1,910 ft above sea level, from topographic map.
EXTREMES FOR PERIOD OF RECORD - Maximum mean daily discharge, 27,200 ft³/s, July 31, 2006; minimum, no flow for many days several years.