Lake Francis is 301 acres with a maximum depth of eight feet. The lake is extremely fertile and turbid. The low water clarity inhibits aquatic plant growth. Although complete kills are rare, winter oxygen levels often drop low enough to cause some fish mortality. Fish migration from the Rum River repopulates the lake with gamefish, common Carp, and White Sucker. A small public access is located on the southeast end of the lake with parking for six rigs, which tends to limit summer angling pressure. Winter angling pressure has been high in recent years.
Anglers visiting Francis Lake can expect quality angling for numerous species. Black Crappies were extremely abundant. Three fourths of Crappies sampled by the trapnets exceeded nine inches in length. Although the bulk of Crappies sampled by gillnet were between 5 and 6 inches, more than a fourth of that catch exceeded 9 inches as well. The Bluegill catch was more typical of the lake type but they too should provide excellent angling opportunity with 75% of the trapnet sample in excess of 8 inches. The Northern Pike were oriented to the shoreline resulting in a higher catch in the trapnets than in the gillnets. Eighty six percent of the pike sampled by trapnets exceeded 24 inches with thirty nine percent 30 inches or better. The Walleye population, a result of fry stocking following low winter oxygen levels in 2009 and 2010, was a little higher than in most similar lakes. All of these 3 and 4 year old fish were over 16 inches in length. Like Crappies, Yellow Perch were extremely abundant. Perch should provide additional harvest opportunity with nearly a fourth of the catch (23%) eight inches or better. Largemouth Bass were not particularly numerous but most were between 14 and 19 inches.