Site saw significant changes in the 1970s when Clwyd County Council, in partnership with Wimpey Asphalt Quarries, implemented a Derelict Land Reclamation Scheme. This initiative aimed to restore the landscape by capping large shafts with concrete and landscaping the surrounding areas. Despite these efforts, elements of the mine’s industrial past remain visible.

Today, little surface evidence remains of the extensive workings due to land reclamation efforts. Many of the large shafts have been capped with concrete and the surrounding areas landscaped, although two substantial shafts remain fenced off at SJ 2105 6980 and SJ 2085 6990. The remnants of earthwork mounds and shafts make it difficult to distinguish between the workings of the Halkyn Mine and the adjacent Deep Level Halkyn Mine at SJ 2085 7010.

A large reservoir still holds water at SJ 2120 6980, with its dam wall and evidence of a sluice visible at the southeastern end. This reservoir sits within an area of waste ground where most other processing structures have been removed. Downhill from the mine, enclosed areas of cleared waste remain, defined by earthwork banks and drainage cuts. To the northeast, a large bulldozed waste area surrounds a dried-up pool at SJ 2135 7005, near a capped shaft at SJ 2110 7015.

Evidence of industrial transport also survives. The surface workings were once serviced by a narrow-gauge railway, while an underground diesel railway system operated within the Halkyn District United Mines during the 20th century. These transport systems played a crucial role in moving materials within the sett. While much of the site has been reclaimed and altered, traces of its industrial past remain in the landscape, providing insight into the scale of mining operations that once dominated the area.

The Halkyn Mine has a long history of lead extraction and industrial activity. The mine was historically drained by the Halkyn Deep Level Tunnel, which began as a day level in 1818 and was driven from a stream at Bryn-moel, approximately 150 yards below Nant Mill. In 1875, the Halkyn District Mines Drainage Company Ltd was established to extend the tunnel, with an Act of Parliament allowing them to levy a tax on mines that benefited from the drainage system. Over time, the tunnel was extended southwards, improving drainage for the North Hendre Mines and Rhosesmor, eventually reaching Llyn-y-pandy with several small branches.

By the early 20th century, the mine had become an important site for lead ore processing. Smith (1921) records Lewis Shaft, New Pant-y-gof Shaft, and Ladder Shaft as key operational areas worked by the Halkyn Mining Co Ltd, located south of St Mary’s Church, Halkyn. A concentration plant was built near Lewis Shaft to process the ore, using jigs, trommels, water classifiers, and round buddles to refine the material. The galena extracted from the Pantygof Vein was sent to various locations for smelting, including Parker & Co. of Bagillt and Purex Ltd of Greenford, Middlesex. In 1932, a new mill was constructed at the Pen-y-bryn Shaft to serve the mines under the Halkyn District United Mines group.