50,000 Gallons Of Crude Oil Spills Into Partially Frozen Yellowstone River http://thinkprogress.org/climate/2015/01/19/3612952/montana-yellowstone-river-oil-spill/
50,000 Gallons Of Crude Oil Spills Into Partially Frozen Yellowstone River http://thinkprogress.org/climate/2015/01/19/3612952/montana-yellowstone-river-oil-spill/