all other regions lost money : montana , north dakota and northern idaho , 88 cents of revenue per dollar expense ; rocky mountains -lrb- eastern and central wyoming , colorado , south dakota , nebraska and kansas -rrb- , 56 cents ; western wyoming , southern idaho , utah and nevada , 57 cents ; minnesota , iowa , missouri and states to the east north of the ohio and potomac rivers , including west virginia , 87 cents ; alaska , 25 cents .