Sentinel Mesa in Monument Valley, Arizona, USA. <br>The 5 expressed <b>geologic units</b>:
<dl><dd>5--(resistant <a href="https://en.wikipedia.org/wiki/caprock" class="extiw" title="en:caprock">en:caprock</a>)-Shinarump Conglomerate<br>4--(horizontal, layered)-<a href="https://en.wikipedia.org/wiki/Moenkopi_Formation" class="extiw" title="en:Moenkopi Formation">en:Moenkopi Formation</a><br>3--(cliffs)-De Chelly Sandstone-(also in <a href="https://en.wikipedia.org/wiki/Canyon_De_Chelly_National_Monument" class="extiw" title="en:Canyon De Chelly National Monument">en:Canyon De Chelly National Monument</a>)<br>2--(skirts)-Organ Rock Formation- (of Utah, &amp; northern Arizona)<br>1--(local regions of Mon. Vall.)-<a href="https://en.wikipedia.org/wiki/Cedar_Mesa_Sandstone" class="extiw" title="en:Cedar Mesa Sandstone">en:Cedar Mesa Sandstone</a></dd></dl>
<a href="//commons.wikimedia.org/wiki/User:Bgag" title="User:Bgag">Bernard Gagnon</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>