Diamond Craters is a 29.7 mile moderately trafficked out and back trail located near Diamond, OR. The trail is rated as moderate and primarily used for nature trips, mountain biking, and scenic driving. 29.7 miles 1194 feet Out & Back mountain biking nature trips scenic driving 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!