|World's largest sand dune outside of Nazca, Peru.
From Puquio, the road continued to climb. At about 14,000 feet, we had to stop and put on every layer we had because it got so cold. Shortly after, at about 14,500 feet, it started snowing pretty hard and the sun was going down. Looking at the map, we still had about 500 more feet to climb before the road leveled off above 15,000 feet for another 60 miles or so. When the snow kept increasing in intensity, we made the call to turn around and head back the half hour to Puquio. If we had kept going, it would have meant riding for at least 2 more hours in the dark in a snow storm.