I'm in Peru. We just spent a couple of days around the Cañon de Colca, one of the deepest canyons in the world. The place where we stayed last night, Chivay, is at 3700 metres above sea level and on the way there we stopped at a viewpoint that was 4900 metres above sea level, higher than Mont Blanc. The area around Chivay and the canyon is lush and green and if it wasn't for the thin air, you'd easily forget that you are at an altitude that is higher than most of the Alps' ski resorts.
Nobody told the locals either, as explained by one of the girls in the group this morning: she asked the landlady of the hotel where she stayed overnight whether she kept llamas or alpacas, to which the landlady replied "we don't do that here, only in the mountains". That'd be the steep bits above 4000 metres that we see in the distance then.
This was written on the bus between Chivay and Puno yesterday and uploaded today.