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All Slade Mine (Bishopston Mine), Bishopston, Swansea, Wales, UK

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Latitude & Longitude (WGS84): 51° 34' 8'' North , 4° 2' 36'' West
Latitude & Longitude (decimal): 51.56899,-4.04335
UK National Grid Reference:SS584876
Köppen climate type:Cfb : Temperate oceanic climate
Other/historical region names associated with this locality:West Glamorgan; Glamorgan
Other regions containing this locality:Glamorgan, Wales, UK


A small lead mine, probably of some antiquity, although the first recorded working is from the latter 18th century, when All Slade Mine is said to have made a profit of £12,000.

Active again for three years from about 1810, the mine is mentioned in "A Topographical Dictionary of The Dominion of Wales by Nicholas Carlisle, London, 1811", which notes:- "BISHOPSTON, There is a Lead mine in a Valley in this Parish, called All Slade, about a quarter of a mile from the Sea-shore. This Mine was re-opened about two years ago, and some Tons of Ore of a good quality were raised from it, but it was again dropped, either for want of Capital or Spirit in the Adventurers. Several Implements of the ancient Miners were discovered upon reopening it, which occasioned an idea that they perished in the Mine, but no remains of them were found."

The mine was finally reopened as the Bishopston Silver-Lead Mine from 1850-53, and although shallow, with workings only reaching 14 fathoms below deep adit, reports in the Mining Journal state that the pump was never able to adequately cope with the influx of water.

The only recorded output was 10 tons of lead ore in 1853.

Ref.: Northern Mines Research Society, British Mining No. 18, The Non-Ferrous Mines Of The South Wales Area, J R Foster-Smith, 1981

Mineral List


1 valid mineral.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Mississippian
323.2 - 358.9 Ma



ID: 2036252
Dinantian Rocks (Undifferentiated)

Age: Mississippian (323.2 - 358.9 Ma)

Lithology: Limestone with subordinate sandstone and argillaceous rocks

Reference: British Geological Survey. DiGMapGB-625. British Geological Survey ©NERC. [23]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



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