LOCATION.-- Lat 37°59'40", long 88°58'30" (NAD of 1927), in NE1/4NW1/4 sec.22, T.6 S., R.2 E., Franklin County, Hydrologic Unit 07140106, on right bank at downstream side of bridge on State Highway 14, 0.3 mi upstream from Illinois Central Railroad bridge, 3 mi west of Benton, 4.5 mi east of Christopher, 9 mi upstream from Middle Fork Big Muddy River, and at mile 97.60.

DRAINAGE AREA.-- 498 mi².

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE

DISCHARGE: October 1945 to September 1970.

SURFACE-WATER QUALITY

CHEMICAL: Water years 1979-87.

GAGE.-- Water-stage recorder. Datum of gage is 365.51 ft above NGVD of 1929. Prior to Aug. 12, 1946, nonrecording gage at same site and datum. Water-stage recorder for station at Plumfield is used as an auxiliary gage for this station.

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 38,600 ft³/s May 9, 1961, from rating curve extended above 18,000 ft³/s; maximum gage height, 24.94 ft May 9, 1961; minimum discharge, 0.1 ft³/s Oct. 16, 17, 21-26, 1963, July 29-31, 1965.