The MV Edgar B Speer arrives at Two Harbors, MN to load iron ore.  The Speer a 1000 foot lake freighter designed to carry bulk cargoes and is one of the largest vessels on the Great Lakes.  The Speer has an unusual self-unloading system that limits the ports it can use to discharge cargo.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/9197427@N06">Pete Markham</a> from Loretto, USA
CC BY-SA 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/pmarkham/4487515350/">MV Edgar B Speer arriving at Two Harbors, MN</a>