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This was a 'rack' train, where it uses a cogwheel to pull its way up this track.
It's not unlike how gears turn each other - this time one gear is in the train and the track/earth is the other.

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Picture info:
Date: 2007-09-19 12:09:25   Camera: Canon EOS 40D
Focal Length: 22mm   Shutter: 1/125s   F/6.3   ISO: 100   Flash did not fire