Blesberg (Q31881015)

• matcher place: Nama Khoi Local Municipality (relation 81968)
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• Overpass query: show query – Overpass Turbo

  [timeout:300][out:json];
  (
      node(around:1000,-28.98306,17.72694)["gnis:feature_type"="Mine"][~"^(addr:housenumber|.*name.*)$"~".",i];
      way(around:1000,-28.98306,17.72694)["gnis:feature_type"="Mine"][~"^(addr:housenumber|.*name.*)$"~".",i];
      rel(around:1000,-28.98306,17.72694)["gnis:feature_type"="Mine"][~"^(addr:housenumber|.*name.*)$"~".",i];
      node(around:1000,-28.98306,17.72694)[industrial=mine][~"^(addr:housenumber|.*name.*)$"~".",i];
      way(around:1000,-28.98306,17.72694)[industrial=mine][~"^(addr:housenumber|.*name.*)$"~".",i];
      rel(around:1000,-28.98306,17.72694)[industrial=mine][~"^(addr:housenumber|.*name.*)$"~".",i];
      node(around:1000,-28.98306,17.72694)[landuse=quarry][name];
      way(around:1000,-28.98306,17.72694)[landuse=quarry][name];
      rel(around:1000,-28.98306,17.72694)[landuse=quarry][name];
      node(around:1000,-28.98306,17.72694)[location=underground][~"^(addr:housenumber|.*name.*)$"~".",i];
      way(around:1000,-28.98306,17.72694)[location=underground][~"^(addr:housenumber|.*name.*)$"~".",i];
      rel(around:1000,-28.98306,17.72694)[location=underground][~"^(addr:housenumber|.*name.*)$"~".",i];
  );
  out center tags;

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Search criteria from Wikidata

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