Also known as "El Capitan" in Monument Valley

From Wikipedia, the free encyclopedia

Agathla Peak (Navajo: Aghaałą́, Spanish: El Capitan) is a peak south of Monument Valley, Arizona, over 1500 feet (457 meters) high.
It is 7 miles (11 km) north of Kayenta and is visible from U.S. Route 163. The English designation Agathla is derived from the Navajo name aghaałą́
meaning 'much wool', apparently for the fur of antelope and deer accumulating on the rock. It is considered sacred by the Navajo.

Agathla Peak is an eroded volcanic plug consisting of volcanic breccia cut by dikes of an unusual igneous rock called minette. It is one of many
such volcanic diatremes that are found in Navajo country of northeast Arizona and northwest New Mexico. Agathla Peak and Shiprock in New Mexico
are the most prominent. These rocks are part of the Navajo Volcanic Field, in the southern Colorado Plateau. Ages of these minettes and associated
more unusual igneous rocks cluster near 25 million years.

I shot this on my way up to Moab for a PBase meet-up with Dan Greenberg, Glenn Dean, and David Ingram.
All great guys and all much better photographers than me.