Hitchhiking from Purmamarca to Villazon was hard and tedious. Full sun, no shade and almost no traffic heading up north. And to my surprise no trucks either, they all take the turn at Purmamarca to head in the direction of Chile instead… After 60 km in 6 hours with including standing for two hours at the location below we gave up and took a bus. With only costed some 30 pesos, pretty cheap for Argentina.
Yes, hardly any traffic there. It’s a very nice road for cycling:-)