Croesor Quarry (Q5187458)

  • matcher place: Gwynedd (relation 77961), Snowdonia National Park (relation 287245), Gwynedd (relation 297286), VC48 Merionethshire (relation 298875)
  • view on Wikidata
  • Wikipedia: English, Welsh
  • Wikimedia Commons
  • English Wikipedia categories: Llanfrothen, Slate mines in Gwynedd
  • Overpass query: show queryOverpass Turbo
    [timeout:300][out:json];
    (
        node(around:1000,52.99100,-4.00160)["gnis:feature_type"="Mine"][~"^(addr:housenumber|.*name.*)$"~".",i];
        way(around:1000,52.99100,-4.00160)["gnis:feature_type"="Mine"][~"^(addr:housenumber|.*name.*)$"~".",i];
        rel(around:1000,52.99100,-4.00160)["gnis:feature_type"="Mine"][~"^(addr:housenumber|.*name.*)$"~".",i];
        node(around:1000,52.99100,-4.00160)[industrial=mine][~"^(addr:housenumber|.*name.*)$"~".",i];
        way(around:1000,52.99100,-4.00160)[industrial=mine][~"^(addr:housenumber|.*name.*)$"~".",i];
        rel(around:1000,52.99100,-4.00160)[industrial=mine][~"^(addr:housenumber|.*name.*)$"~".",i];
        node(around:1000,52.99100,-4.00160)[landuse=quarry][name];
        way(around:1000,52.99100,-4.00160)[landuse=quarry][name];
        rel(around:1000,52.99100,-4.00160)[landuse=quarry][name];
        node(around:1000,52.99100,-4.00160)[location=underground][~"^(addr:housenumber|.*name.*)$"~".",i];
        way(around:1000,52.99100,-4.00160)[location=underground][~"^(addr:housenumber|.*name.*)$"~".",i];
        rel(around:1000,52.99100,-4.00160)[location=underground][~"^(addr:housenumber|.*name.*)$"~".",i];
        node(around:1000,52.99100,-4.00160)["man_made"="mine"][name];
        way(around:1000,52.99100,-4.00160)["man_made"="mine"][name];
        rel(around:1000,52.99100,-4.00160)["man_made"="mine"][name];
        node(around:1000,52.99100,-4.00160)["man_made"="mineshaft"][name];
        way(around:1000,52.99100,-4.00160)["man_made"="mineshaft"][name];
        rel(around:1000,52.99100,-4.00160)["man_made"="mineshaft"][name];
    );
    out center tags;
Summary from English Wikipedia (enwiki)

Croesor quarry is a large underground slate mine in North Wales which was served by Croesor Tramway. Small scale quarrying began in the 1846, and by 1861, there were two companies in operation. They amalgamated in 1865, a year after the quarry was connected to the newly opened Croesor Tramway. Much money was invested in development work, but volumes of useful slate produced were small, amounting to just 226 tons in 1868. Access to the underground workings was by a single adit, and the surface mill was powered by two water wheels. A change of ownership in 1875 did little to improve the profitability of the quarry, and it closed in 1878 or 1882.

Summary from Cymraeg / Welsh Wikipedia (cywiki)

Chwarel lechi gerllaw Croesor yng Ngwynedd oedd Chwarel Croesor. Yn wahanol i’r rhan fwyaf o chwareli Cymru, roedd bron y cyfan o’r gweithfeydd dan y ddaear. Ar un adeg roedd yn cynhyrchu 11,000 tunnell o lechi yn flynyddol.

Wikidata location: 52.9910, -4.0016 view on OSM or edit on OSM

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Search criteria from Wikidata

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mine (Q820477) industrial=mine
subterranea (Q863404) location=underground

Search criteria from categories

Slate mines in Gwynedd landuse=quarry, gnis:feature_type=Mine, industrial=mine, man_made=mine, man_made=mineshaft