Stump Lake is a naturally formed lake located in Nelson County, North Dakota. It covers 15,742.4 acres (6,370.7 ha), has 72.5 miles (116.7 km) of shoreline, and has an average depth of 29.7 feet (9.1 m) with a maximum depth of 73.3 feet (22.3 m). It is stocked by the North Dakota Department of Natural Resources with Walleye, Yellow Perch, and Northern Pike.