Penyclun Mine was developed in the 1850s and 1860s and there are a compact group of remains. There is an unusual small rotating Cornish Engine house and stack. There are remains of the boiler house and a small reservoir and leat to supply it with water. A waterwheel pit survives nearby, a level and an open shaft are visible to the west.

Claire Parry, RCAHMW, 6 June 2011

Sources:
1. Cadw scheduling description.
2. Association for Industrial Archaeology: A Guide to the Industrial Archaeology of Mid-Wales, 1984