USGS Water-Year Summary 2019
13337000 LOCHSA RIVER NEAR LOWELL, ID
LOCATION - Lat 46°09'03", long 115°35'14" referenced to North American Datum of 1983, in SW 1/4 SW 1/4 SE 1/4 sec.33, T.33 N., R.7 E., Idaho County, ID, Hydrologic Unit 17060303, Lowell quad., Clearwater National Forest, on right bank 0.7 mi upstream from Lowell, 0.9 mi upstream from confluence with Selway River, 1.2 mi downstream from Pete King Creek, and 19 mi east of Kooskia.
DRAINAGE AREA - 1,178 mi², Mean elevation, 5,250 ft.
PERIOD OF RECORD - Oct. 1910 to Sept. 1912, Oct. 1929 to current year. Monthly discharge only for some periods, published in WSP 1317.
REVISED RECORDS - WDR-US-2010: Drainage area.
GAGE - Water-stage recorder. Datum of gage is 1,452.98 ft above NGVD of 1929. Prior to Nov. 21, 1930, non recording gages at site 1 mi upstream at different datums.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 35,100 ft³/s June 8, 1964, gage height, 13.50 ft, from rating curve extended above 17,000 ft³/s; minimum, probably less than 100 ft³/s Jan. 8, 1937, during period of ice effect.