<a href="https://en.wikipedia.org/wiki/EMD_MP15AC" class="extiw" title="en:EMD MP15AC">EMD MP15AC</a> diesel locomotive owned by the <a href="https://en.wikipedia.org/wiki/Union_Pacific" class="extiw" title="en:Union Pacific">Union Pacific</a> railroad.  Formerly a <a href="https://en.wikipedia.org/wiki/Southern_Pacific" class="extiw" title="en:Southern Pacific">Southern Pacific</a> locomotive, and is still in their red and grey color scheme, "patched" with UP lettering and numbering.
<a href="//commons.wikimedia.org/wiki/User:Morven" title="User:Morven">Morven</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>