To the north, across the road from Cefn Farm, a large shaft and whim circle remain at SJ 1942 6605, alongside an engine shaft at SJ 1942 6607. A semi-circular wall, likely part of an earlier shaft, is situated just north.

Mining operations on the western section of the vein have been lost due to quarrying. However, additional shafts, likely following the same vein, are still identifiable further south at SJ 1935 6583, SJ 1895 6599, and SJ 1885 6560. Several larger shafts and spoil mounds are visible along a woodland cutting running north to south, locations including SJ 1872 6622, SJ 1884 6640, SJ 1864 6655, SJ 1868 6660, SJ 1904 6664, SJ 1906 6665, and SJ 1917 6675.

A stone-built engine house remains at SJ 1942 6607, with its bob-pit and adjacent boiler house still partially intact. Some of the original mounting bolts remain in place, and the cylinder base suggests it once housed a 36-inch engine. The whim circle at SJ 1942 6605 is also preserved. The site is located uphill from the former River Alyn smelt mill, which was historically associated with ore processing in the area.

In 1880, an adit near the River Alyn was used to access the Cefn-Cilcain Vein, which was worked alongside the north-south Coed Du cross-course vein.