South Branch Lake Professional Review and Guide
"This 2,035-acre, semi-remote lake is known for its warmwater species. It is a prime destination for the serious smallmouth bass angler because the lake contains no coldwater game fish. Many Maine anglers prefer to fish for trout, landlocked salmon, or lake trout, and regard smallmouth bass as trash fish. Consequently, fishing pressure is light, except for local anglers in search of white perch for the frying pan.
South Branch Lake has a special fall fishing season from October 1 through November 30, during which all trout, landlocked salmon, and lake trout must be released alive (but note that the lake actually contains no trout, salmon, or lake trout). The largest island in the center of the lake offers a primitive campsite. Key Species: smallmouth bass, white perch, pickerel."