USGS Water-Year Summary 2023
07364100 Ouachita River near Arkansas-Louisiana State Line
LOCATION - Lat 33°01'52", long 92°05'16" referenced to North American Datum of 1983, Union County, AR, Hydrologic Unit 08040202, on right bank 3.5 mi below Felsenthal lock and dam, 1.6 mi north of Arkansas-Louisiana State line, and 4.5 mi southeast of Felsenthal, Ark.
DRAINAGE AREA - 10,787 mi².