Yep, I travel through the Sonora desert on a regular basis to visit family, most of the drive is just rocks and bare landscape. I always make sure to bring plenty of water on those drives in case the car breaks down or something.

It really is a feat of engineering when you think about it that highways were built and maintained over such vast distances and through some really inhospitable terrain. When driving that road I sometimes ponder what it was like building it.