Waskosim's Rock Reservation (Chilmark) is a 4.5 mile loop trail located near Chilmark, Massachusetts. The trail is rated as moderate and primarily used for hiking and mountain biking. 4.5 miles Loop hiking mountain biking Expand Map VIEW FULL MAP Sign up now to see this map! Reviews (0)Photos (2)Recordings (2)No one has reviewed this trail yet. Be the first!