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Mount Washington Cog Railroad422 viewsThis particular steam engine runs a cog on a long toothed rack to propel the train up and down the steep slopes of Mount Washington. The only purpose for the track is to keep the cog in the rack. The rear of the boiler is tilted up so it is more or less level as the engine traverses the mountain grade.lurker carl09/16/05 at 20:421541: Rode the Cog back in 2001. 37.5% Grade @ one p...
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