USGS Water-Year Summary 2022
04224000 MOUNT MORRIS LAKE NEAR MOUNT MORRIS, NY
LOCATION - Lat 42°44'00", long 77°54'40" referenced to North American Datum of 1927, Livingston County, NY, Hydrologic Unit 04130002, at Mount Morris Dam on Genesee River, 2.0 mi northwest of Mount Morris, 5.0 mi upstream from Canaseraga Creek, and 69.3 mi upstream from mouth.
DRAINAGE AREA - 1,080 mi².
- WSP 1437: 1955. WDR NY-82-3: Drainage area.
PERIOD OF RECORD - January 1952 to current year. Prior to October 1970, published as "Mount Morris Reservoir near Mount Morris."
GAGE - Water-stage recorder. Datum of gage is NGVD of 1929 (Levels by U.S. Army Corps of Engineers). To convert elevations to NAVD of 1988, subtract 0.55 ft. Prior to Apr. 8, 1952, nonrecording gage at same site and datum.
COOPERATION - Capacity table provided by U.S. Army Corps of Engineers, 1953.
EXTREMES FOR PERIOD OF RECORD - Maximum elevation, 755.46 ft, June 25, 1972, contents, 322,600 acre-ft; minimum recordable elevation, 584.20 ft, Aug. 24-30, 1991, but was lower during this period due to dredging operations, contents, about 470 acre-ft.