In this May 9, 2008, file photo, a dragline crane operates at the Westmoreland Coal mine northeast of Hardin, Montana. Up to two to two-thirds of the impoverished Crow tribe’s revenue comes from the 15,000-acre Westmoreland Resources mine that sends coal to power plants in the Midwest. The chairman of …
FILE - This May 9, 2008 file photo shows production at the Westmoreland Coal Mine northeast of Hardin, Mont. Signal Peak Energy, a mining company, plans to start exploratory work this spring on an estimated 400 million tons of coal beneath Montana’s Crow Indian Reservation, adding to a spate of …