Sylvan Lake

Sylvan Lake is a small, human-made mountain reservoir in Custer State Park’s Needles area, ringed by tall granite outcrops and pine forest. The shore has a one-mile walking loop, a sandy swim beach, picnic tables, boat rentals, a general store and Sylvan Lake Lodge. Come for the walk if you want a close look at the rocks and water; the beach and rentals make it easy to stay longer. Summer weekends can bring crowds and tight parking. This is inside Custer State Park, so park entry fees apply.

The Sylvan Lake Shore Trail is a one-mile loop that the park rates easy. It circles close to the water, with granite blocks rising right beside the path and glimpses across small coves. The northwestern leg is the rough part: expect stairs and uneven rock, and don’t count on the full circuit being suitable for a wheelchair or stroller.

The designated sandy beach is the place to swim, and picnic tables are nearby. At Sylvan Lake Store you can rent a canoe, kayak or stand-up paddleboard; the store also has quick, casual food, coffee and ice cream. For a sit-down meal, Sylvan Lake Lodge has a separate restaurant serving breakfast, lunch and dinner.

The lake is a trailhead hub as well as a day-use stop. Sunday Gulch is a separate, strenuous 2.8-mile loop reached by following the shore trail behind the dam. It drops steeply over rock with handrails, then follows the creek past cascades. The Black Elk Peak trail also starts near the footbridge by the beach, but it’s a much bigger outing than the lakeshore walk.

Sylvan is a reservoir, not a natural lake. In 1891, the Reder family dammed the stream running through the valley, creating what is now the oldest lake in Custer State Park. Two years later, the family opened Sylvan Lake Hotel on the shore. An early photograph shows the hotel tucked under the same granite walls that still define the view.

Walk the shore trail for closer angles of the outcrops, rather than taking every picture from the main access. Frame a granite block with water in the foreground to show how close the rocks sit to the lake; when the surface is still, the cliffs and pines reflect back into it.