File:Pioneer Tunnel Coal Mine - 2 narrow-gauge steam locomotive (Vulcan 0-4-0T) 2 (22833473809).jpg

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This is a working, coal-burning steam locomotive that was formerly used to head tourist trains at the Pioneer Tunnel Coal Mine in Ashland, Pennsylvania, USA. The engine, nicknamed "Henry Clay", is a narrow-gauge 0-4-0T built by Vulcan Iron Works. The photo was taken in fall 2000.

Unlike most coal-burning steam locomotives, this engine utilizes anthracite coal as a fuel source. Pioneer Tunnel consists of an old surface mine plus an inactive subsurface mine - both are accessible to tourists. This mining area targeted anthracite coal, a very low grade metamorphic rock that consists of more than 90% carbon. It is black-colored, lightweight, not sooty, and breaks with a conchoidal fracture. Anthracite is harder and heavier than ordinary sedimentary coal (= lignite coal, sub-bituminous coal, and bituminous coal). It is also cleaner-burning and hotter-burning. (see: <a href="https://www.flickr.com/photos/jsjgeology/16319380394">www.flickr.com/photos/jsjgeology/16319380394</a> and <a href="https://www.flickr.com/photos/jsjgeology/16941787095">www.flickr.com/photos/jsjgeology/16941787095</a>) The Pioneer Tunnel Coal Mine principally mined the Mammoth Coal, the thickest anthracite coal bed on Earth.

For photos of the Pioneer Tunnel Coal Mine, including the geology & anthracite coal samples, see:

<a href="https://www.flickr.com/photos/jsjgeology/albums/72157632286478708">www.flickr.com/photos/jsjgeology/albums/72157632286478708</a>
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Source Pioneer Tunnel Coal Mine # 2 narrow-gauge steam locomotive (Vulcan 0-4-0T) 2
Author James St. John

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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/22833473809 (archive). It was reviewed on 7 March 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

7 March 2020

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current04:55, 7 March 2020Thumbnail for version as of 04:55, 7 March 2020993 × 792 (638 KB)Ser Amantio di Nicolao (talk | contribs)Transferred from Flickr via #flickr2commons

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