Onyx Cave at Guntown Mountain

Useful Information

Location: I-65, exit 53, Ky 70 west to Cave City. Located at Guntown Mountain Amusement Park.
Open: Onyx Cave: APR to NOV daily Memorial Day to Labor Day daily 10-20:30, May & Sept Sat-Sun
Classification: SpeleologyKarst cave
Light: LightIncandescent Electric Light System
Dimension: T=16 °C.
Guided tours: D=30 min.
Address: Onyx Cave, 101 Huckleberry Knob Rd, Cave City, KY 42127, Tel. +1-270-773-2323.
Mammoth Cave Chair Lift and Guntown Mountain, 101 Mammoth Cave St, Cave City, KY, Tel. +1-270-773-3530. E-mail: contact
As far as we know this information was accurate when it was published (see years in brackets), but may have changed since then.
Please check rates and details directly with the companies in question if you need more recent info.


1971 discovered during the construction of a parking lot for Guntown Mountain Amusement Park.
MAY-1973 opened to the public.


Guntown Mountain is an entertainment park located at Cavve City. The attractions are the Mammoth Cave Chair Lift, which ascends 450 m to the summit of Guntown Mountain, an authentic reproduction of 1880s frontier town, museums, and a saloon. For kids there is a train ride and a water slide. Onyx Cave is part of this park.

The cave has a wealth of colourful speleothems, especially cave coral. The cave is pleasant, and the guides are competent, but it may not be worth to visit the park just to see this small cave.