Brentwood Orchards Loop is a 15.8 mile loop trail located near Brentwood, California and is rated as moderate. The trail is primarily used for road biking and is accessible year-round. 15.8 miles 226 feet Loop road biking Expand Map VIEW FULL MAP Sign up now to see this map! Reviews (0)Photos (0)Recordings (3)No one has reviewed this trail yet. Be the first!