Besides having some of the most stunning scenery on Earth, Northern New Mexico has some of the most interesting geology. A million years ago, the Jemez Caldera super-volcano eruption deposited thousands of feet of ash where Los Alamos, New Mexico is now located.
The photograph below shows three very distinct geologic formations – dominated by igneous, sedimentary and metamorphic rocks from front to back. The pink Miocene lake beds at center contain some nice camel fossils, and are one of my favorite places to go hiking.