Rock layers in the walls of Santa Elena Canyon carved by the <a href="https://en.wikipedia.org/wiki/Rio_Grande" class="extiw" title="w:Rio Grande">Rio Grande</a> in <a href="https://en.wikipedia.org/wiki/Big_Bend_National_Park" class="extiw" title="w:Big Bend National Park">Big Bend National Park</a>.
<a href="//commons.wikimedia.org/wiki/User:Leaflet" title="User:Leaflet">Leaflet</a>
2006-11-13
<span class="int-own-work" lang="en">Own work</span>