|Post Name||LLANFAIR TALHAIARN|
|OS Grid Reference||SH92936999|
|Date opened||June 1960|
|Date closed||September 1991|
|Location||On a low mound in a small rectangular compound on hillside behind houses, 75 yards north of a sharp bend in Ailt-y-Powls.|
|Description||LOCKED All surface features remain intact with the light green paint flaking badly. The FSM pipe stands on a square concrete plinth and a concrete apron surrounds the ventilation shaft. The hatch is locked
June 2018: Concrete block securing the hatch has been removed by someone.
|Date of Visit||2.10.2000|