The first thing you notice at the Spring Creek mine in Decker, Mont., is the size. It's not just the sprawling, 9,000 acre site in Big Sky Country near the Montana-Wyoming line. It's everything about mining the coal.
Giant coal hauling trucks the size of two-story buildings zip around the complex with surprising ease, considering the fact that they are carrying 255 tons of coal per trip. The coal is loaded onto mile-long trains—each car carrying more than 100 tons—that leave the mine 24 hours a day, seven days a week, 365 days a year.
At the same time, massive 13,000-ton cranes known as draglines slowly peel back strips of earth and rock 200 feet deep to reveal the rich, black, 80-foot seam of coal below. As the coal is removed, giant machines are filling the strip back in, then moving over like a gigantic lawn mower and starting the process all over again.
Despite the dizzying amount of activity at Spring Creek, production is well below its prerecession peak. The sluggish economy and an abundance of cheap natural gas have hurt demand. So has the prospect of tougher environmental regulations following the spill of 30,000 tons of toxic coal ash in North Carolina in February and a proposal by the Obama administration for tougher limits on carbon emissions.
CORRECTION: The video embedded with this story originally misidentified the name of a Wyoming-based company. The correct name is L&H Industrial.