Merionethshire Mining Co.

1886–1887  Coed and Lletty Walter
1886–1887Cwm Mynach
1886–1887Graig Uchaf
1886–1887Mynydd Llanbedr
1886Pen is’r Cwm

In 1887 an action was brought by the Highways Board against the company for compensation for damage caused to roads by the cartage of manganese ore.

In April 1888 the company advertised for sale by auction at Cwm Mynach mine and at Pensarn station “The whole of the mining plant stock, and materials, consisting of”

[Cambrian News 13/4/1888 p. 1]