I was guessing the location must have been somewhere north, surprised it's that close to Scottsdale though. I was thinking more like Crown King. That trail surface looks really soft, do you feel like you're riding in mush? Everything packs down hard here, except when it's wet. Thinking some water would make that trail nicer to ride. Thanks for the geology lesson and your informative posts in general.
Are those Exustar pedals? I bought a few pairs a while back. Really nice though not exactly light. Rode one of my touring bikes today, was wishing I'd had the Exustars instead of the pedals that came on the bike - which are almost impossible to flip over and get your toe started into the clips and straps.