Estabrook Woods Trails: Esker, Estabrook, Estabrook Rd, Bellows Hill Access, Poole Sachs Loop, Carlisle, East & West Hubbard. Distance: 6 miles roundtrip Elevation: 260 feet Joined the Metrowest Retirees (or not yet) Ready for Adventure meetup group for a fun hike through the Estabrook Woods in Concord/Carlisle, MA. We entered the woods through a path on private property. Estabrook Woods consists of 1700 acres of mainly private property that is maintained as a wildlife sanctuary and research. Enjoy some photos I took of our hike .