Image:Canal lock1.jpg
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Canal_lock1.jpg (23KB, MIME type: image/jpeg)
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Lock 1 of the Patowmack canal.
Image source: [1], linked at [2]. Lupo 12:05, 5 November 2005 (UTC)
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This image or media file contains material based on a work of a National Park Service employee, created during the course of the person's official duties. As a work of the U.S. federal government, such work is in the public domain. See the NPS website and NPS copyright policy for more information. |
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![[1]](http://www.nps.gov/gwmp/grfa/trails/canal1a.jpg){kind=link}
