Caspar Creek - 640 - 630 - Loop is a 11.6 mile loop trail located near Mendocino, CA. The trail is primarily used for mountain biking and is accessible year-round. 11.6 miles 1040 feet Loop mountain biking Expand Map Sign up now to see this map! Reviews (0)Photos (0)Recordings (2)No one has reviewed this trail yet. Be the first!