[6] The mountain, the centrepiece of the themed area, is 88 feet (27 m) tall[7] and was constructed with 30 sculptors and 20 painters working on it for eight hours a day over a period of 14 months.

The team visited California's Sierra Nevada Mountains and Yellowstone National Park before starting work.

To make the mountain look realistic, designers went through several exhaustive stages, including sketching, model-making, three-dimensional computer scans and adding authentic finishing touches.

An animatronic grizzly bear, named Rocky, accidentally sends passengers down tunnel 4 while scratching himself on a track switch.

Entering tunnel 4, the train begins to climb a lift hill in the style of a traditional roller coaster.

The train then goes through a variety of twists and turns before arriving at the terminal brake run and returning to the station, passing by a damaged minecar containing Mother Lode, Nugget and the fish.