A limekiln, an old coal pit and a dwelling are shown on OS 1st edition 25in mapping, but the limekiln has been consumed by the reopening of the colliery by 1873 (OS 2nd edition mapping). Modern mapping would suggest that dwelling is still extant, but this would appear doubtful from modern aerial photography (i.e. no gaps in treecover).

Sources include:
NAW aerial photography 2006-9
OS 1st edition 25in mapping 1868-9
OS 2nd edition 25in mapping 1873

Maritime Officer, RCAHMW, May 2012.