The exploitation of ochre began more than a century ago, and Rustrel soon become an important production centre which was part of the industrial revolution, thanks to its ferruginous minerals. Today, after a long decline, the exploitation is almost at an end, although the Colorado Provençal has received a second lease of life. It is now open to visitors who marvel at its colours and forms.

Between Rustrel and the hamlet of Gignac, on the banks of the river Dôa, you can follow a number of walkways that will take you towards an incredible succession of rusty-coloured rocks, golden cliffs and red earthen chimmneys which rise majestically out of the vegetation.