The prow of Adobe Mesa...

looms more than 1,700 feet (580 meters) above my vantage point where I captured this image. I’m scouting a scrambling route to access the light-colored spot about mid-slope below the prow, at the base of the Chinle/Moenkopi Formation contact, where I suspect carbonate deposits exist from a former spring.

Side note: I established a geocache at the very tip of the mesa top seen in this image in April 2012. Only two other determined explorers have claimed the cache to date! (Click image to enlarge.)