USGS Water-Year Summary 2021
07352895 Black Lake Bayou near Clarence, LA
LOCATION - Lat 31°52'24", long 92°57'59" referenced to North American Datum of 1983, in NW 1/4 SE 1/4 sec.3, T.10 N., R.6 W., Natchitoches Parish, LA, Hydrologic Unit 11140209, on downstream side of bridge on State Highway 1226, 1.8 mi northeast of Chivery Dam, 2.8 mi upstream from Allen Dam, and 5.0 mi northeast of Clarence.
DRAINAGE AREA - 908 mi², but does not include 412 mi² of Saline Lake. Flows are interchangeable between Black and Saline Lakes, combined usable capacity, 161,000 acre-ft. Considerable regulation by Chivery Dam.