Entrench 2200' of fiber optic cable between the Maintenance Shop and Fee Station at Round Spring. Entrenchment will follow an existing utility. Existing corridor begins at Maintenance Shop, passes behind gas tanks/pumps, crosses a gravel road then up and behind duplexes until reaching NPS 169 which it follows under MO-19, crosses NPS-l69 and continues onto the Fee Station. Crossing NPS-169 will require a road bore. Some vegetation will have to be removed, particularly in the area behind the housing/duplexes.