If coming from I-93 take Exit 11. Go through toll booth. At the stop sign take a left and follow to the end. At the next stop sign take a left onto Route 3A. There will be a set of lights ahead, take the slight right turn before lights. Go over the bridge. Take the next road on left (Merrimack Street). Follow until the end. At the stop sign take a left onto Main Street. Pass the Elementary School and Fire Station. Start down a small hill, be sure to go slow. Take Canal Street on left. Follow to the end and take a right onto the dirt road. Follow the gate around to the back and enter in back gate to facility.