Why did Cerro Rico produce so much silver in colonial Spanish times, but does not today?

by hey_i_tried

I've just learned about Cerro Rico, I would love to learn more about the mountain\mining operations there.... any book recommendations?

CommodoreCoCo

June Nash's We Eat the Mines and the Mines Eat Us is a great look at current issues of mining in Bolivia and their history. Accessible and powerful read.