LOCATION.--Lat 43°53'49.8", long
75°24'15.4" referenced to North American Datum of
1983, Lewis County, NY, Hydrologic Unit 04150101, on left bank
1,200 ft upstream from Black Creek, and 0.5 mi west of
Croghan.
DRAINAGE AREA.--291 mi².
PERIOD OF RECORD.--September 1930 to current year.
REVISIONS HISTORY.--WDR NY-82-1: Drainage area.
GAGE.--Water-stage recorder and crest-stage gage. Datum
of gage is 806.20 ft above NGVD of 1929 and 805.87 ft above
NAVD of 1988.
REMARKS.--Flow regulated by Stillwater Reservoir
(station 04256500). Between Stillwater Dam and this station,
flow is further regulated by several powerplant ponds. Diurnal
fluctuation at low and medium flow.
Water Years 2014-23: Records good except those for estimated
daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 5,100
ft³/s, May 21, 1969, gage height, 6.98 ft; minimum discharge,
11 ft³/s, Jan. 22, 29, Feb. 4, 1967, gage height, 0.63
ft.