The Cox Reservation consists of two parcels: a four-acre woodlot on nearby Lufkin Street and the 26 acres of upland, salt marsh, farmland with house and barn, and river frontage on Eastern Avenue. The views from the larger parcel east toward the salt marsh, the Essex River, the back of Crane Beach, and Castle Hill and Choate Island are magnificent. The LEED certified Greenbelt headquarters and staff offices are located at the Cox Reservation, and the property serves as the location for many Greenbelt events, such as Art in the Barn, throughout the year.