By a disused telegraph pole in the corner of a field west of the junction of Whitcliffe Road and Middle Wood Road
LOCKED Some wooden fencing survives. All surface features remain intact. A metal dome and aerial bracket on the ventilation shaft, and three guying points in the grass indicate this was a master post. The hatch is locked.
Opened in 1961 and closed in 1991.
Hatch sealed off by concrete box.
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