USGS Water-Year Summary 2020
04066800 MENOMINEE RIVER AT KOSS, MI
LOCATION - Lat 45°23'14", long 87°42'07" referenced to North American Datum of 1927, in SE 1/4 NE 1/4 sec.36, T.35 N., R.28 W., Menominee County, MI, Hydrologic Unit 04030108, on left upstream bank 30 ft from river and 18 ft west of County Trunk JJ (Koss) bridge, 0.3 mi southeast of Koss and 3.4 mi upstream of Grand Rapids Dam.
DRAINAGE AREA - 3,700 mi².
PERIOD OF RECORD - July 1907 to March 1909 monthly discharge only (published as "at Koss"), July 1913 to September 1981 (published as 04067000 Menominee River below Koss, MI), June 1998 to current year. Records prior to October 1913 published in WSP 244, 264, and 384.
REVISED RECORDS - WDR WI-80-1: Drainage area.
GAGE - Water-stage recorder, Sontek velocity meter(installed on September 28, 2005), and crest-stage gage. Elevation of gage is 655.37 ft above NAVD of 1988, from topographic map. June 1913 to September 1981, headwater and tailwater gages and generation data entered hourly in daily log sheet by Wisconsin Public Service Corp. employees at powerplant 4 mi downstream. Records of daily discharge furnished by Wisconsin Public Service Corp. Prior to June 1913, chain gage on railroad bridge at Koss.