A must-see, two hours from the village of Tolar Grande, Siete Curvas is a bit like the Grand Canyon, but without any people there (at present, only 500 visitors a year visit the area). The rock formations look like little islands floating in a deep chocolate sea. You can trek here with a guide, even camp out overnight on the mineral mica terrain – which breaks away in your hand like peanut brittle. Apart from mica, the dramatic scenery around here is made up of malachite, quartz, flint and volcanic rock.
Read more in our blogger Felice Hardy's post En Route in Argentina's Dramatic North.