Named after the last active gold mine in Keystone, Holy Terror Mini Golf leads players 50 feet up a steep, pine tree-dotted hillside and back down again. A gold-mining theme weaves a common thread from the first hole to the last, challenging players to putt their way past gold-speckled boulders, down through a mine slew, and around a waterwheel and a gurgling stream. Along the way, golfers encounter three kinds of artificial turf designed to simulate fairways, sand traps, and rough, all of which adds to the realism of the 18-hole course. Holy Terror is also outfitted with plenty of lighting, meaning rounds can unfold at night or if the sun's six billion bulbs ever burn out at once.