A male (presumed) Chuckwalla (Sauromalus ater) watching over his territory from the highest
point on this particular sandstone outcrop. There was a smaller female (presumed) nearby.
Both were basking in the early morning Sun, undoubtedly getting ready for the day.
This is a merge of three exposures for HDR (and my thanks to the chuckwalla for staying put).
Note: geotag location is close, but not accurate, so as to keep this couple unmolested.

"Chuckwallas (Sauromalus ater) are harmless herbivores feeding on desert flowers, fruits and leaves.
Young chuckwallas are known to try a grasshopper or two, but stick entirely to plants by the time they
are a year old. Chuckwallas obtain all their water from the plants they eat and never drink, even when
water is readily available. Instead of urination to void their body of salts, these wastes are passed as
crusty salts breaking up and falling out when the reptile exhales. They are adept at living in rocky areas
under 4,000 feet elevation. As well as dodging into cracks of the rocks in which they live when threatened,
they inflate themselves with air wedging into the crevices solidly, making it nearly impossible to remove
them by brute strength." Source http://digital-desert.com/wildlife/chuckwalla.html

Click on the image below for a larger version of other images from this trip: