Serpent lake is a 1,057 acre lake located between the towns of Crosby and Deerwood. There are two public accesses, one on the east shore and one on the northwest. The lake is heavily developed and it has a maximum depth is 65 feet. This lake offers anglers a variety of species to target. You will find catchable numbers of walleye, northern pike and smallmouth bass. There are good numbers of largemouth bass in the lake. Other fish include bluegill, crappie, rock bass and perch.