Wengquangou mine
Liaoning, China
The Wengquangou mine is a large boron ore mine located in Liaoning province, China. Wengquangou represents one of the largest boron reserves in China having an estimated reserve of 21.9 million tonnes of ore grading 7.23% boron.
Mine data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).