The geology of the Mercantour

The site of Col de Veillos is marvellous for a geological reading of the landscape.The rocks of the col form this singular relief, known as “ruiniform”. They are rauhwackes, of sedimentary origin. On the road to the Millefonts carparks, you may already have spotted the beautiful limestone piton of Baus de la Frema.Opposite Col de Veillos, the ridge at the north, between the cols of Ferrière and Barn, is made up of crystalline metamorphic rocks: migmatite, with a mixture of light and dark colours.And from Col de Barn, enjoy the view across Argentera and its famous granite.