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STREAMS TRIBUTARY TO LAKE MICHIGAN
04063500 MENOMINEE RIVER AT TWIN FALLS NEAR IRON MOUNTAIN, MI
LOCATION.--Lat 45°52'17", long 88°04'12", in NE1/4 SE1/4 sec. 12,
T.40 N., R.31 W., Michigan Meridian, Dickinson County, Hydrologic Unit
04030108, on left bank 150 ft downstream from We Energies powerhouse
at Twin Falls Dam, 3.6 mi north of Iron Mountain, and at mile 106.6.
DRAINAGE AREA.--1,800 mi2.
PERIOD OF RECORD.--January 1914 to current year. Published as "near
Florence, WI", October 1957 to September 1989.
REVISED RECORDS.--WDR MI-91-1: 1990(M). WDR MI-92-1: Drainage area.
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is
1,062 ft above sea level (levels by Wisconsin Electric Power Co.).
Prior to September 1957, headwater and tailwater gages and generation data
entered hourly in daily log sheets by company employees. Oct. 1957 to
Sept. 1989, water-stage recorder at site 10.4 mi upstream at different
datum. Nov. 1989 to July 1993, water-stage recorder at site 150 ft
upstream at same datum.
Station operated in cooperation with We Energies.
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