<p>The front portion of the Alaska Railroad train from Anchorage to Denali N.P. and Fairbanks.  These are the Alaska Railroad cars for the general public, including a "Vista Dome" car.  At this point, the railroad might be following the Nenana River, which flows north to the Tanana River, and ultimate to the Yukon River and Bering Sea.  
</p>
The location is approximate.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/24736216@N07">Roger W</a> from Sarasota, Florida, U.S.A.
CC BY-SA 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/24736216@N07/3820675340/">Alaska Railroad Train</a>