Colstrip, Mont., is true to its name — it exists because of coal.
"Our coal's getting deeper, like everywhere else, because everybody's mining. They're getting into the deeper stuff," says Kevin Murphy, who has worked in the Rosebud Mine for 15 years running a bulldozer in the open pits.
Everything about the mine is enormous, especially the dragline, a machine as big as a ship with a giant boom that extends 300 feet up into the air. The dragline perches on the lip of the pit, scraping away hundreds of feet of rocky soil to reveal the black seam of coal below.