We just returned from my Atacama and Patagonia Photo Tour 2018. Driving into the Atacama Desert from Argentina, we crossed the Andes Mountains. I was watching the altitude on the GPS we had in front of the bus. The highest altitude was 4833 meters which equals 15856 feet. More post will follow as I edit my images. If you are interested in a future trip, please email me at firstname.lastname@example.org. Thank you.