Two streams — the Mill Brook and the Tiasquam River —flow out of Chilmark and unite in West Tisbury to feed the Tisbury Great Pond. The reservation ranges from the river itself, crossed by a simple beam footbridge and including a wildlife blind at pond's edge, up to a ridge some 175 feet above sea level. Trails connect from here to Brookside Ridge Preserve and Waskosim’s Rock Reservation.

From Middle Road at the Chilmark - West Tisbury town line, go 0.2 miles into Chilmark; driveway is on the right, which leads to the trailhead.