Descente du Grand Ratz

Descente du Grand Ratz is an out-and-back mountain bike trail in Auvergne-Rhône-Alpes, France, inside Parc naturel régional de Chartreuse. It is 0.7 miles each way, 1.3 miles there and back. It runs between about 2,320 ft and 2,560 ft above sea level, with roughly 60 ft of climbing one way. It is rated mtb:scale 4 or higher: very steep, technical terrain that only expert riders should attempt. Most of the way is dirt. The nearest town is Pommiers-la-Placette, about 1.0 miles northwest of the start. Peaks within about 3 miles include Roche Brune, Mollard d'Arbon and Aiguille de Chalais. Cascade du Gigot and Cascade de la Pisserotte are within about 3 miles. For camping, Wild Camping No Water and Camping municipal La Grande Forêt are within about 6 miles. There are 48 other mapped trails within about 3 miles, so you can combine or extend the outing. Distances, elevations and the trail shape here come from OpenStreetMap and the Copernicus 90 m elevation model. Trail access for bikes, closures and conditions change, so check locally before you ride.