In a large rectangular high fenced compound on the east side of A803.
LOCKED All surface features remain intact although no paint remains. The hatch is locked. A metal dome on the ventilation shaft indicates that this was a master post. There is paving around the FSM pipe. The compound has large green double gates with barbed wire on top for vehicle access.
There is the base of a small structure in the north-west corner of the compound which might be the base of an aircraft post. We have been told that there was a surface post South of the main Stirling road in the East of Kilsyth on high ground. This fits with Attack Warning Red: Opened December 1938 NS722779 34/B.1 Kilsyth Nov 1953 resited to NS741761 26/Z.4 Dec 1961 resited to NS670756 renamed Kirkintilloch Underground April 1963 27/N.3 Oct 1968 25/C.2
Opened in 1963 and closed in 1991.