Flat Creek Lake   Be the first to submit input for Flat Creek Lake. If you have info on Flat Creek Lake, Perkins County, South Dakota please submit it here to improve this web site.          These outdoors activities are available near Flat Creek Lake.   Lakes Near Flat Creek Lake: Shadehill Reservoir, Perkins County, 3 miles away North Lemmon Lake, Adams County, 11 miles away   Public Lands Near Flat Creek Lake: Llewellyn Johns Memorial State Recreation Area, South Dakota, 1 miles away Shadehill Recreation Area, South Dakota, 7 miles away   Camp Grounds Near Flat Creek Lake: Merrimans Grove Campground, Perkins County, 2 miles away