Trawsfynydd
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Trawsfynydd (5)
Location: SH71193578. Opened 1960 Closed 1991 Date of visit: March 2009 Post is locked on the Torlift. However a security plug is in place which cannot be removed. No access underground. There is an addition to the GZI mount which would have held a muslin gauze which was used to collect any fallout from the nearby Nuclear Power Station.