Headed east, this CSX train is about to cross the Potomac River in Harper's Ferry, WV.  Note the tunnel on the other side of the river.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/9531520@N05">jpmueller99</a> from Shenandoah Valley of VA, USA
CC BY 2.0
<p><a rel="nofollow" class="external text" href="https://www.flickr.com/photos/redarrow101/3939181726/">Over the River and Through the Tunnel</a>
</p>
<ul><li>Uploaded by <a href="//commons.wikimedia.org/wiki/User:Mackensen" title="User:Mackensen">Mackensen</a></li></ul>