Eureka Lake   Be the first to submit input for Eureka Lake. If you have info on Eureka Lake, McPherson County, South Dakota please submit it here to improve this web site.          These outdoors activities are available near Eureka Lake.   Public Lands Near Eureka Lake: Doyle Memorial State Park, North Dakota, 24 miles away Lake Hiddenwood Recreation Area, South Dakota, 26 miles away Beaver Lake State Park, North Dakota, 31 miles away