From themeparkreview.com:

Mystery Mine, scheduled to open at Dollywood in spring 2007, is the United States’ first system based on Gerstlauer’s Euro-fighter ride, which combines an intimate guest experience with hair-raising 95-degree drops. Located in Dollywood’s Timber Canyon area, Mystery Mine is themed as a long-abandoned coal mine with an eerie past. Mystery Mine utilizes a state-of-the-art show experience built on special effects, audio and lots of excitement.
Layout Steel, sit-down
Vertical lifts 2
Track length 1,811 feet
Ride duration 2 minutes, 30 seconds
Maximum speed 46 miles per hour
Tallest vertical drop 85 feet at 95 degrees
Inversions 1 Heart-line Roll; 1 Rollover Loop
Vehicles 7 cars that carry 8 passengers; 4 passengers per row
Capacity 1,000 passengers per hour
Area 1.1 acres
Minimum Height Requirement 48 inches
Facility Construction Dollywood Maintenance & Construction
Ride Manufacturer Gerstlauer Elektro GmbH – Munsterhausen, Germany
Project Producer B Dudash & Associates, Inc.
Scenic Fabrication Adirondack Scenic – Saratoga Springs, NY
Special Effects Entech Creative – Orlando, FL
Audio/Video Systems Edwards Technologies – Los Angeles, CA
Attraction Design Forrec Ltd. – Toronto, Canada
Project Producer B Dudash & Associates, Inc.

Link