Eugène-Emmanuel Viollet-le-Duc, Mont Blanc Seen from the Massif, Les Aiguilles Rouges, 1874
This wonderful watercolour is reproduced in Kelly Presutti's excellent new book Land into Landscape. As she points out, the mountain panorama was evidently so vast it required sticking two sheets of paper together. Viollet-le-Duc is famous for having restored Carcassonne and Notre-Dame de Paris but he also spent eight summers making a study of Mont Blanc, culminating in the publication of a detailed map and 'study of its geodesic and geological construction, of its transformations, and of the old and modern state of its glaciers.' His book Le massif du Mont Blanc (1876) includes a fascinating diagram (see below) that begins with a purely geometric shape imagined as a more pristine original state, before the forces of erosion had turned it into the landscape equivalent of a ruined cathedral. This sequence looks like an illustration of the way computer game landscapes have evolved from grid frameworks (Atari's Battlezone) to the complex realism facilitated by 3D graphics cards. Painters had always produced idealised mountain forms but Viollet-le-Duc's 'treatise was meant to be practical and proscriptive, to pertain to an ambition to modify the real as much as an aspiration to evoke the ideal.' Presutti's book includes fascinating information about the steps taken in nineteenth century France to preserve mountains, through the establishment in 1882 of a government service dedicated to the Restauration des terrains en montaigne.
At this time two new technologies were changing the ways mountains could be seen and depicted. One, obviously, was photography. The other was the 'teleiconograph', which Presutti describes in an article on the Yale University Pres website.
Designed by fellow architect Henry Révoil, the teleiconograph combines a telescope with a camera obscura to bring distant points nearer and enable the observer to trace them onto a page. Révoil advertised the efficacy of his device by illustrating the sculptures on the rooftop of Notre Dame, an application sure to attract Viollet-le-Duc’s interest.The teleiconograph provided the kind of precise rendering Viollet-le-Duc needed to decipher the mountains. Using it, he produced detailed studies of peaks, carefully calibrating angles and timing his studies to coincide with optimal lighting conditions. Intricate lines trace the cuts and angle of rock faces; blank spaces denote areas concealed by snow. The resulting diagrams are less a picture of a mountain than a translation of its materiality into mathematical properties.