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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
04127885 ST. MARYS RIVER AT SAULT STE. MARIE, ONTARIO
LOCATION - Lat 46°29'54", long 84°18'55" referenced to North American Datum of 1983, Chippewa County, MI, Hydrologic Unit 04070001,
DRAINAGE AREA - 80,900 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - November 2008 to current year.
GAGE - Acoustic velocity meter. Stage provided by NOAA International Great Lakes water level gage, station number 9076033 (NOAA Little Rapids IGLD 85).
COOPERATION - International Joint Commission, Great Lakes and Environment Canada.
REMARKS - Discharge affected by wind direction and seiche on Lake Superior and Lake Huron. Flow is regulated by upstream hydroelectric plants and navigation control points.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 135,000 ft³/s, Aug. 23, 2012; minimum discharge, 3,480 ft³/s, Mar. 21, 2022.
