USGS Water-Year Summary 2023
05391000 WISCONSIN RIVER AT RAINBOW LAKE, NEAR LAKE TOMAHAWK, WI
LOCATION - Lat 45°49'50", long 89°33'08" referenced to North American Datum of 1927, in NE 1/4 NE 1/4 sec.36, T.39 N., R.7 E., Oneida County, WI, Hydrologic Unit 07070001, on right bank 500 ft downstream from Gilmore Creek, 0.4 mi downstream from Rainbow Lake, and 2.3 mi northeast of Lake Tomahawk.
DRAINAGE AREA - 757 mi².
REVISIONS HISTORY - WSP 895: 1937(M). WSP 1508: 1944. WDR WI-83-1: Drainage area. WDR WI-80-1: Datum.
SURFACE-WATER RECORDS
PERIOD OF RECORD - July 1936 to current year. Prior to October 1955, published as "at Rainbow Reservoir, near Lake Tomahawk."
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 1,569.13 ft above NAVD of 1988 (levels by Wisconsin Valley Improvement Co.). July 1936 to September 1982, water-stage recorder at site 400 ft above Gilmore Creek at same datum.