TR 271457. Abandoned colliery, Lydden. Stonehall Colliery. A bore hole was sunk here in 1913 and three shafts were subsequently sunk to a maximum depth of 273 ft. Trouble was experienced due to the ingress of water and no coal was ever won from here; c.1920, the site was abandoned and the shafts sealed. The brick foundations of the head gear for two shafts still exist together with a derelict brick engine house (see illustration card). The third shaft was to supply feed water to the boiler. The workshop buildings still remain in fairly good condition. On the hillside above are the remains of a large storage tank, with a brick-capped circular concrete wall c.30 yd diameter and 20 - 25 ft high; the wall is breached at one point. (1) (TR 27104563) Stonehall Coliery (disused) (NAT) (2)

<1> Ind Arch of SE Eng 1978 47-48 (A J Haselfoot) (OS Card Reference). SKE44234.

<2> OS 1:10000 1976 (OS Card Reference). SKE48161.