A series of large shafts were sunk along the vein, including the main engine shaft at SJ 2070 6185, which was driven 112 yards to intersect the vein. Another significant feature is a large pool at SJ 2030 6195, recorded by the Ordnance Survey as a clay pit.
Evidence of workings near the 19th-century engine house has been obscured by spoil from the adjacent quarry. Smith (1921) documented a whim shaft reaching a depth of 80 yards, but its exact location remains unidentified. The large shafts in Coed-y-Fedw woodland measure at least 4 meters wide, surrounded by spoil heaps.
A possible incline runs downhill from the engine shaft at SJ 2070 6180 to the large pool at SJ 2030 6195, suggesting a transport system for extracted materials. The Cornish engine house, which remains standing at approximately 10 meters high, originally pumped a shaft 112 yards deep. It represents a well-preserved example of late 19th-century mining architecture, though the structure has developed severe cracks in the south and west walls due to the effects of nearby quarrying. The west wall retains its full height, featuring an entrance doorway and two windows, indicating a three-floor design. Though roofless, remnants of timber sills, lintels, and floor joist ends are still visible. Repairs using brick are evident around the windows, suggesting later modifications. The base for the engine cylinder and the condenser pit remain inside. The north wall, partially covered in ivy, is approximately 7 meters long and 10 meters high, displaying signs of burning on its west side and remnants of floor joists. Two windows, both repaired with brick, remain, while a gap in the wall at cylinder base level likely served as an outlet for pipes leading to the boiler house. However, any trace of the boiler house or chimney has been lost, either buried under spoil or removed due to the public footpath that now crosses the area. The south wall has mostly collapsed beneath quarry spoil, showing burn marks and a severe vertical crack. Parts of the winding rope can still be seen buried in the coppice area. The east wall, known as the bob wall, remains solid at approximately 4 to 5 meters wide, though overgrown with ivy. The land rises steeply toward the quarry, aligning with a gap in the east wall where pump rods would have been positioned.
Natural watercourses flow downhill through the woodland, possibly modified by past mining activities. The large pool at SJ 2030 6195 is mapped by the Ordnance Survey as a clay pit, though no clear connection to dressing floor workings remains. There is no surviving evidence of processing infrastructure.
To the east of the engine house (SJ 2065 6180), only two walls remain of a stone building measuring approximately 2 meters wide by 4 meters long, with water flowing around it, suggesting a possible connection to mining operations. Nearby, derelict stone-built dwellings are located along the roadway at SJ 2070 6180, potentially linked to the mine.
Followed the Coed-Cynric Vein, which extends in a northwest to southeast direction through Cefn-y-fedw Sandstone and clay with chert beds. The site was initially worked in the early 19th century by the Aberduna Company, followed by the Coed Cynric Company between 1860 and 1865. Later, larger-scale operations were conducted by the Denbighshire Consols Mining Company.
A public footpath runs through the area but is now fenced off, preventing direct access to the Cornish engine house. The surrounding land, owned by Pioneer Quarries, has been modified, with quarry spoil covering some of the original mine workings.
To the north of Coed-y-Fedw Woods, the land is owned by the Liverpool Education Authority and used as an outdoor pursuits center. While this area is accessible, key mining features such as shafts and structures may be obscured or difficult to reach. Some remnants of mining activity, including a disused mine truck and workshop machinery, are displayed within the outdoor center.
