Jewel Cave is open year round. The Park Service offers three tours: the scenic tour, a half-mile loop through a paved and lighted central portion of the cave accessible by elevator; the historic tour, a candlelight tour through the earliest-discovered part of the cave; and a spelunking tour, through an undeveloped part of the cave near the scenic loop. There are some surface trails. While reservations are not required, they are recommended during the summer seasons.
With 141 miles of mapped passageway Jewel Cave is believed to be the second longest cave in the world, after Mammoth Cave, in Kentucky, at 367 miles.
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Elk Ridge Bed & Breakfast
12741 Matthew Ct,
Keystone, SD 57751
Phone: (866)-380-9090 or (605)-574-2320