Cheyenne Mountain Cog Railroad offered service on a narrow gauge road from The Broadmoor to the Cheyenne Mountain Zoo from 1961 until 1974. The railway engine called The Mountaineer was a small edition of the narrow gauge cog trains used to climb Pikes Peak. Two plexiglass topped cars, each carrying up to 20 people, took passengers for a ride through four tunnels. The ride began at a boarding station by the lake at The Broadmoor and stopped at the zoo's entrance, the Thundergod House.