The Land of Giants
This is just a practice round to help ya'll get the idea.
This week I have been away from home on business. After work this afternoon I drove across town to visit the largest human excavation on earth. At 2.5 miles across and .75 miles deep, this pit is visible from space.
The truck in the picture weighs more than a 747. It carries 600,000 tons of rock and debris out of the bottom of the pit in a single load. Each tire costs roughly $20,000 and only lasts 9 months.
Why go to all this work? Is this some sort of elaborate art? Trying to dig to the bottom of the world? The answer is much more profitable than that. The trucks are hauling Chalcopyrite.
What is this mineral? why is it so valuable? What is the name of this pit?
That is your task.