The Abandoned Mine Plan of 1904, held at the County Record Office (CRO) in Hawarden, illustrates two shafts associated with the Plantation Mine: Plantation Shaft on the Holway Vein and the Coetia Eithin Shaft. The mine sett was located immediately to the southeast of the crossroads, opposite the Waen workings. Today, this site is occupied by a new house set in extensive grounds, and any related earthworks or structures have been lost to development.

A further area of shafts can be found to the rear of a disused farm at coordinates SJ 1560 7660, where they appear as overgrown mounds. These shafts, along with the land to the north where new bungalows have been built, have experienced significant collapse in the 1970s. The area is believed to overlie the air shaft from the Waen mine, which emerges at SJ 1560 7660.

Both Plantation and Coetia Eithin Mines were drained by the Gorsedd Adit Level. Although there is no evidence of transport infrastructure in the area, the 1904 Sale Catalogue for Plantation Mine, deposited at CRO Hawarden, provides detailed information on the mine’s plant and machinery. This includes a pair of portable winding engines, a horizontal Cornish pump, a donkey feed pump, crushing rollers, three-compartment jiggers, a Blake’s patent stone crusher, crushing rolls, trommels, and lengths of launder, along with an Evans Cornish pump and suction condenser.