The Red Vein and Main Vein were worked in Carboniferous Limestone. Royle’s Shaft, located at SJ 2652 5158, now exists as a grass-covered mound with a horse whim circle to the west of the mineral railway, surrounded by grassed-over spoil heaps. A line of old workings to the southwest marks the path of the White Vein.

Remains of Reid’s engine house, with some original mounting bolts still in place, can be found within the undergrowth in an area rich with mining evidence. A 14-inch horizontal winding engine was used to raise ore at both Reid’s and Royle’s Shafts. It was later powered by a hydraulic engine via a pipeline supplied by two reservoirs located above, alongside the mountain road.

Reid’s Shaft, the center of mining operations on the Red Vein, was sunk to a depth of 750 feet at SJ 2653 5168. Initially pumped by a waterwheel, it was later upgraded with Darlington’s water pressure engine. The shaft remains capped to the north of the railway track. To the west of Royle’s Shaft, a collapsed and fenced-off shaft is now filled with debris. The day level extended from the River Clywedog at SJ 2660 5180, situated north of Reid’s Shaft.

The track of the mineral railway, which once connected the two shafts, remains clearly visible and is now used as a public footpath.