Black Gap bridge, located on the Black Hills Back Country Byway, a.k.a. Old Safford Road, 2.0 odometer miles south of the Gila River crossing, in Greenlee County, Arizona.  South (upstream) side of bridge, seen from the southwest.
<a href="//commons.wikimedia.org/wiki/User:Ammodramus" title="User:Ammodramus">Ammodramus</a>
<span class="int-own-work" lang="en">Own work</span>