USGS Water-Year Summary 2019
06917560 MARMATON RIVER NEAR RICHARDS, MO
LOCATION - Lat 37°51'53", long 94°34'56" referenced to North American Datum of 1983, in NE 1/4 SE 1/4 NE 1/4 sec.32, T.36 N., R.33 W., Vernon County, MO, Hydrologic Unit 10290104, on left upstream wingwall of county road bridge, approximately 10 mi upstream from station Marmaton River near Nevada (06918060).
DRAINAGE AREA - 455 mi².
PERIOD OF RECORD - Oct 1, 2005 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 745.00 ft above North American Vertical Datum of 1988.