Situated within the Silurian Llandovery series shales and slates, with a single east-west vein containing galena and sphalerite mineralisation.

The workings include three levels and three shafts: the Magazine level (SN 9711 8099), the adit level (SN 9708 8098), the Pumping Shaft (SN 9701 8098), an Old Shaft (SN 9682 8098), a blocked upper level (SN 9690 8098), and an eastern trial shaft (SN 9787 8089). The adit and magazine levels remain open but are partially waterlogged.

Remains include poorly preserved remnants of the pumping, drawing, and crushing engine on the dressing floors at SN 9710 8092. This was a 26“ or 28“ rotary steam engine installed in 1868. A waterwheel, depicted on the 1886 OS first edition map below the present road, now exists only as a few masonry remains. No visible remains survive at East Cwm-fron, where a 30ft diameter waterwheel was used for pumping and drawing.

The main dressing floors housed a complete processing setup, including at least one crusher, jigs, and buddles. Although most surface structures have been lost, a masonry and brick wheelpit with tie rods near the stream remains intact. The site holds significant potential for buried archaeology.

In 1958, deep adit could be explored as far as stopes beyond the engine shaft - Bick.

Recorded output 33 tons lead ore, 144 tons blende, although Bick believes Kitto sold another 103 tons of lead and 320 tons of blende.