In a large square compound on hilltop above caravan park (off B724), 30 metres west of Church Walk (footpath). 150 yards south west from a sharp bend in Ryehill Road.
SEALED All surface features remain intact with the dark green paint flaking badly. A dome one the ventilation shaft indicates this was a master post. The louvers on the ventilation shaft have slid down. The hatch is open but the shaft below has been filled with rubble and capped with concrete.
There is a concrete plinth with a hexagonal mount in bushes nearby. This might have been a WW2 light anti-aircraft emplacement overlooking the Solway Firth.
Opened in 1966 and closed in 1991.