The mountains of Alberta and British Columbia in western Canada have always challenged the resolve of the railways that worked their way west, opening up the country. It was a new frontier that soon tested man and locomotive as trains crossed through a rugged and unforgiving territory. Even today, the task continues as incredible amounts of tonnage are hauled over arduous mountain passes and through spectacular river canyons, powered by modern diesel locomotives. With a stunning collection of previously unpublished photographs, Mike Danneman showcases these marvellous machines amid the splendour of some of the best mountain scenery in the world.