Sylvan Lake   Be the first to submit input for Sylvan Lake. If you have info on Sylvan Lake, Black Hills, Custer County, South Dakota please submit it here to improve this web site.          These outdoors activities are available near Sylvan Lake.   Lakes Near Sylvan Lake: Bismark Lake, Custer County, 5 miles away Sheridan Lake, Pennington County, 10 miles away Deerfield Lake, Pennington County, 18 miles away   Public Lands Near Sylvan Lake: Custer State Park, South Dakota, 12 miles away Adams Homestead and Nature Preserve, South Dakota, 23 miles away Angostura Recreation Area, South Dakota, 27 miles away Jewel Cave National Monument, Custer - SD, 5 miles away Mount Rushmore National Memorial, Keystone - SD, 15 miles away Wind Cave National Park, Hot Springs - SD, 22 miles away   Marinas On or Near Sylvan Lake: Sheridan Lake Marina, Rapid City, 9 miles away Pactola Pines Marina, Rapid City, 11 miles away   Camp Grounds Near Sylvan Lake: Fort Welikit Family Campground, Custer, 1 miles away Hill City KOA Kampground, Hill City, 3 miles away Mount Rushmore KOA, Hill City, 3 miles away Willow Creek Horse Camp - Black Hills National Forest, Custer, 3 miles away   Hotels Near Sylvan Lake: Sylvan Lake Lodge, Custer, 1 miles away Blue Bell Lodge, Custer, 2 miles away Lodge at Palmer Gulch, Hill City, 3 miles away Comfort Inn Hill City, Hill City, 4 miles away Holiday Inn Express Hotel & Suites HILL CITY-MT. RUSHMORE AREA, Hill City, 4 miles away   Whitewater Near Sylvan Lake: Battle Creek, PenningtonCounty, 15 miles away       Class III-IV(V) - 4 miles long (Harney to Hayward)