Kongsfoss (Q34753880)

• matcher place: Buskerud (relation 412297), Modum (relation 412363)
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• Overpass query: show query – Overpass Turbo

  [timeout:300][out:json];
  (
      node(around:1000,59.89613,9.91178)[natural=water][name];
      way(around:1000,59.89613,9.91178)[natural=water][name];
      rel(around:1000,59.89613,9.91178)[natural=water][name];
      node(around:1000,59.89613,9.91178)[waterway=waterfall][~"^(addr:housenumber|.*name.*)$"~".",i];
      way(around:1000,59.89613,9.91178)[waterway=waterfall][~"^(addr:housenumber|.*name.*)$"~".",i];
      rel(around:1000,59.89613,9.91178)[waterway=waterfall][~"^(addr:housenumber|.*name.*)$"~".",i];
  );
  out center tags;

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found a single match candidate

Search criteria from Wikidata

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body of water (Q15324)	natural=water
waterfall (Q34038)	waterway=waterfall