The lake region affords great diversity of fish and wildlife habitat. Major tributaries to the Little River, on which the dam was constructed, are the Rolling Fork, Cossatot, and Saline rivers. There also are many cutoff sloughs. Some 20,000 acres of submerged timber provide excellent fish habitat for a wide variety of fish including largemouth, white striped, and spotted bass, channel and flathead catfish, bluegill, sunfish, buffalo, carp and drum. For years, Millwood has been known as one of the hottest bass fishing lakes in the nation. Each year it is the site of many bass tournaments and fishing derbies held by local and out-of-state organizations, all in search of Millwood’s lunker largemouth bass.