Elk Mountain Nature Trail is a roughly 1-mile out-and-back foot trail in Wind Cave National Park, South Dakota. Difficulty: easy, from Trailbound's popular-hike list. That is the full hike: the mapped trail line covers only 0.73 mi of it, so don't plan from the map line alone.
Open Elk Mountain Nature Trail on Trailbound's interactive map to see the full route, the elevation profile, today's forecast and any park alerts for Wind Cave. Wind Cave has permits or reservations for some areas: see the Wind Cave page for what's needed.