Olekma mine
Zabaykalsky Krai, Russia
The Olekma mine is a large iron mine located in southern Russia in the Zabaykalsky Krai. Olekma represents one of the largest iron ore reserves in Russia and in the world having estimated reserves of 4 billion tonnes of ore grading 30% iron metal.
Mine data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).