Moel Mochowgryn
| Alternative names |
Llechowgryn Moel Machowgryn Moel Llechowgryn Mochowgryn |
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| Location | SH806403 (Area map showing location.) | ||||||
| Parish | Llanycil | ||||||
| Geology | Manganese mineralisation occurs associated with minor N–S vertical faults. The host rock is yellowish tuff of the Llyn Conwy formation. [Lynas 1973: 497] Several more or less definite veins of manganese ore as well as irregular stringers. The principal vein is about .3m wide bearing 353° and dips east at about 80°. The prevailing mineral is psilomelane, with occasional pyrolusite, yielding 43–54% manganese. [Dewey & Bromehead 1915: 54] | ||||||
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Recorded output |
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| Transport | Road to Arenig railway station (2 miles) [Dewey & Dines 1923: 70]. | ||||||
| Remains | Major adit at SH80654030 with shallow open working or collapsed stoping to north and west. Remains of buildings at Adit mouth. There was possibly a stone-built wheelpit immediately east of the adit mouth 6m x 1m, 2m deep, the western end of which is stepped down and with the outfall on opposite wall [Gwyn 1998: app. 2: 124]. | ||||||
Workings were 30 feet (9m) deep and ~30 feet (9m) long. [Halse 1892: 946]
The site appears on the Merioneth 1890 revision of the 6" map [OS 1st edn: XIII NW (1875–1987)] as “Manganese Works (Disused)” and “Levels”.
Down [1980: 69] gives the location of this mine as SH800406.
| Front page | Index of mines | Area maps: Arenig, Harlech |