USGS Water-Year Summary 2020
06923940 NIANGUA RIVER ABOVE LAKE NIANGUA NEAR MACKS CREEK, MO
LOCATION - Lat 37°51'48", long 92°53'53" referenced to North American Datum of 1983, in SE 1/4 SW 1/4 NE 1/4 sec.15, T.36 N., R.18 W., Dallas County, MO, Hydrologic Unit 10290110, at top of boat ramp in Lead Mine Conservation Area, 12.7 mi upstream of Tunnel Dam, and 8.1 mi southeast of Macks Creek.
DRAINAGE AREA - 522 mi².
PERIOD OF RECORD - Jun 18, 2008 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is unknown.