Ruta 40 is this legendary highway that runs the entire length of Argentina, 4900 kms worth. We'd already had come down it from Mendoza to Bariloche. But now we were going to spend 34hrs non-stop busing down it. It's closed over the winter, and now I know why. Most of it is just gravel road, working it's way through the bleak Patagonia country, hardly a highway. Purely amazing. Giving us a small glimpse at the solitude of Patagonia. Driving for hours seeing nothing, then you'll come across a gaucho riding his horse in the middle of the scrub. No-one else around. The remotest farm houses, built next to an Andean fed river and cultivated into a contrasting green oasis amongst the baron landscape.