The Grand Loop is a 22.2 mile loop trail located near Loma, CO and is only recommended for very experienced adventurers. The trail is primarily used for road biking and mountain biking and is accessible year-round. 22.2 miles 400 feet Loop mountain biking road biking Expand Map Sign up now to see this map! Reviews (0)Photos (0)Recordings (1)No one has reviewed this trail yet. Be the first!