This eastbound train is using the rack and pinion to climb the extremly steep grade from Andermatt to Oberalp. The train is one of the 'Glacier Express' workings.
This westbound train is engaging the rack section for the steep descent ahead.
A Matterhorn-Goddard Bahn cruises high above the town of Andermatt. Canon EOS 10D w/ 300mm F/4L IS lens. 1/320 @ F/8.