Rock Lake totals just under 1,200 acres with a maximum depth of 18 feet. This lake has been a good panfish lake with some decent fishing for walleye, largemouth bass and northern pike. Rock Lake has been prone to winter fish kills, although, most of the fish kills have been moderate on the lake. Because of the fish kills, the fishing can vary from year to year depending on how mild or harsh the weather was during the winter. Northern pike tend to do well through winter fish kills, so pike are almost always a good option for anglers on Rock Lake. Panfish include bluegill, crappie and perch.