Rural Middle America Fights to Get Nation 'Back on Track' Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email A shovel prepares to dump a load of coal into a 320-ton truck at Black Thunder mine in Wright, Wyo, April 2007. Analysts say it's only a matter of when, where and how many coal mines will close. ( Matthew Brown / Associated Press ) Produced by PRI and WNYC