Last week they had free tours, so a few of our family went up to take a look. Here we are riding the bus up the mountainside, on the way to the visitor's center at the top, where we can look into the excavation. The two shots below were taken on the ride up, showing the work that is happening all along the mountainside.
(The problem with being the photographer is that you're not in the picture. Bwa ha ha.)
A few interesting facts about the copper mine:
It is so large that it has its own weather patterns.
It's been in operation over 100 years, produces 425,000 ounces of gold per year as a by-product in the copper smelting process. Gold currently sells for over $1500 an ounce.
The mine provides 40% of all copper used in the U.S. The copper is 99.9% pure after it is refined.
The mine and all its connected services provide 25,000 jobs in the Salt Lake Valley.
If you ever visit the Salt Lake area, I hope you will get a chance to go see the Kennecott Open Pit Copper Mine.