Q2 reports Montana’s Rail Link says cleanup crews continued working Wednesday after a coal train derailed on the tracks Tuesday night around 11 p.m. Spokesman Jim Lewis said approximately 40 rail cars fell off the track along Highway 78. Authorities are investigating the cause. Rail crews were seen dismantling crumpled aluminum train cars, while separating coal in the process. Roads that cross the railroad tracks were reopened Wednesday afternoon. However, there is concern over the environmental impact and damage caused by the spill. Lewis said coal did fall from one of the rail cars into a tributary stream of the Yellowstone River. The cleanup in Columbus should last through today.