The United States Army Corps of Engineers maintains a navigation channel, thirty miles in length.
[3] At Sunflower, Mississippi, the river flow measures approximately 1,099 cubic feet per second.
The river collects mud from runoff in the bayous and small streams that feed it.
Early investigators of Native American culture identified many mound sites along the river.
Clarence B. Moore conducted notable studies of the earthworks on the river near Holly Bluff, about a half a mile from the entrance to Lake George.