Kola Superdeep Borehole
deepest human-made hole of
Russia
Europe
Earth
depth
12,262 meters (40,230 feet)
openstreetmap
https://www.openstreetmap.org/node/1272210505
random
Maplewood Nature Center
tags
hole
Wikidata
https://www.wikidata.org/wiki/Q19572
Wikipedia
https://en.wikipedia.org/wiki/Kola_Superdeep_Borehole
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