I spent a week at the La Negra mine doing some training there. The mine is inside of a mountain so you have to drive up from the camp to get to it. The mine road was by far the most dangerous I've ever been on. It wound up the side of the mountain, very narrow with no barriers. One wrong turn that that wouldn've been it.
I got to try aguamiel, the very sweet sap of the maguey plant. It's delicious. They take the sap and let it ferment for 24 hours and it turns into pulque, a sour liquor. ♦