It was acquired in 1989 by private investors who saw the potential to develop a portion of the space into an environmentally-conscious high security commercial storage facility.

Various rooms are located throughout the mine to store various items from road salt and vehicles to pretzels and amusement park rides.

[6][7] With national and international attention,[14][15] an underground mountain bike park was opened to riders of all skill levels in February 2015.

[5][16][17] With 45 trails in 350,000 sq ft (33,000 m2) of the mine's space, it was the world's largest indoor bicycle park.

[9][17] Partially due to the Mega Cavern's recycling business that filled the mine, trails were built with in layers with a rough bottom, sticky, red clay middle, and "good stuff" on top.