Mystery Mine is a $17.5-million steel roller coaster that takes you on a wild adventure through a "ramshackled old abandoned mine." This thrilling roller coaster travels through a 1,811 foot track in an abandoned coal mine with an eerie past. Mystery Mine is the United States’ first system based on Gerstlauer’s Euro-fighter ride. You will experience a hair-raising 95-degree, 85-foot drop into darkness. The minimum height requirement is 48 inches. The Mystery Mine is located in Timber Canyon.