The cog wheel train of Mount Washington in New Hampshire
One of the more unusual things about Mount Washington in the White mountains of New Hampshire is the "cog wheel train" that chugs its way up the mountain side taking visitors to the summit. It is possible to hike to the summit, as we did, and drive there as well, as many people do, but quite often visitors will pay to ride the train to the top and back. It does seem to be quite the ride.. There is an actual coal fed steam engine that powers the train and it belches volumes amounts of thick black smoke as the engine slowly grinds its way up the steep slope. The locomotive keeps from sliding back down the steep slope of the track by a cog gear mechanism that clacks along a track underneath the carriage directly between the steel rails. Without that cog gear it would be impossible for any train to make such a gradient on steel rails. It was quite an impressive sight to see this train slowly wind its way up the mountainside and then ever so slowly pass by us. I managed to get a wave from the engineer and I smiled and waved back to him. I took this extended series of images of the train because I thought the slight variations between the images looked cool and gave a sense of the slowness with which it crept by.