In The Context of Email, What Does “CC” Stand For?

Did You Know!

Montana has a giant underground laboratory hidden inside an old mine. Deep beneath the town of Butte lies the former Anaconda Copper Mining Company's network of tunnels—part of one of the most extensive historic mining systems in the United States. Butte's underground workings stretch for thousands of miles, a reminder of the enormous scale of copper mining that helped earn the city its nickname, “The Richest Hill on Earth.”