There is no visible mineral evidence surrounding the two isolated shafts and mounds at SJ 2065 6505. The local geology is predominantly sandy, and the site lacks significant remaining features of past mining activity.

Large concrete platforms remain, likely serving as machinery foundations. The former engine house once housed a pumping engine, and a capstan was also recorded on the site.

The area lies at the eastern end of the Pantymwyn North Vein within the Cefn-y-Fedw Sandstone belt. Mining activity in this region dates back to the early 19th century when the Pantymwyn Mining Company began operations. The sett remained active until 1913 and was later incorporated into Mold Mines, which resumed work in 1938. At that time, a new headframe was erected over the shaft.

Returns for mining in this area were recorded for Gwernaffield only in 1888 and 1889 (Burt et al., 1992). The Sea Level Tunnel was eventually connected to the New Shaft after operations had ceased.

To the east, at SJ 2075 6520, an area of more recent mining activity exists, partly within woodland and partly on waste ground. Some sections are concreted for haulage, and the site reflects the appearance of modern workings. This location was historically known as the New or Cae Mawr Shaft, situated at the extreme east of the Rhydymwyn Vein. Today, the area serves as a modern dump.

In the pasture fields west of the New Shaft site, remnants of shafts from the Pantybuarth United sett can be found around SJ 2070 6510. These include Wynnes Shaft and Reeds Shaft, which were part of the eastern workings on the vein.