Ruta 27 is a high mountain road located in the northern portion of Chile, on an arid high plateau in the Andes mountains.
The road is 156.19 km (97.05 mi) long. It’s asphalted but with some steep sections. It links San Pedro de Atacama and Paso de Jama, on the Argentinian border. Expect strong winds (dusty and dry), sunny conditions (dangerous without sunglasses), take plenty of water and bring at least two full-sized spare tires (they’ll be burning enough to bake a pizza). Its highest elevation is 4.835m (15,862ft) above the sea level. Most people feel altitude sickness at around 2,500-2,800 meters.