The "Los Castillos" rock formation, in the "Quebrada de Cafayate" valley, province of Salta, Argentina

The "Los Castillos" rock formation, in the "Quebrada de Cafayate" valley, province of Salta, Argentina

Rock formation known as 'Los Castillos' (The Castles), in the valley known as the 'Quebrada de Cafayate', province of Salta, Argentina

The valley known as 'Quebrada de las Conchas', province of Salta, Argentina

Sedimentrary rocks in the 'Quebrada de Flechas', on the road between Cafayate and Cachi, province of Salta, Argentina

Sedimentrary rocks in the 'Quebrada de Flechas', on the road between Cafayate and Cachi, province of Salta, Argentina

Sedimentrary rocks in the 'Quebrada de Flechas', on the road between Cafayate and Cachi, province of Salta, Argentina

The "Quebrada de Flechas" area, in the Calchaquí valley, province of Salta, Argentina

The 'Quebrada de Flechas', in the Calchaquí valley, province of Salta, Argentina

The 'Quebrada de Flechas', in the back the Nevado de Cachi (6,400 m), Calchaquí valley, province of Salta, Argentina

The valley known as 'Quebrada de las Conchas', Salta, Argentina

The 'Quebrada de las Conchas', snow in the mountains, province of Salta, Argentina

The 'Quebrada de las Conchas', snow in the mountains, province of Salta, Argentina

The Las Conchas river, Salta, Argentina

Sedimentary rocks, on the way from Cafayate to Cachi, province of Salta, Argentina

Travelers in the "Quebrada de Flechas", in the "Calchaquí" valley, Salta, Argentina