Croesgoch ROC Post
(SM 821302) At Hen Felin-wynt is a Royal Observer Corps underground nuclear monitoring post.
The underground chamber, 15' by 7'6", was accessed by a vertical shaft via a hatch and a steel ladder. It was built in 1960 at the height of the Cold War and remained in service until 1991.
Internal view of the ROC underground nuclear monitoring post during its operational days.
