Thunder Lake is a 1,330 acre lake located 7 miles south of Remer in Cass County. This lake is deep and the shoreline drops off rapidly. The maximum depth is 95 feet and only 17% of the lake is less than 15 feet deep. This lake is heavily developed. There are currently good numbers of walleye in the lake. Northern pike, largemouth bass and smallmouth bass are also available. Panfish include bluegill, crappie, rock bass and perch.