Deep in the Tarahumara Mountains in Mexico’s north-west state of Chihuahua, the breathtaking Copper Canyon (“Barranca del Cobre”) covers close to 65,000 km² of rugged mountains, forests and canyons. This natural wonder is four times larger (and on average deeper) than its cousin the Grand Canyon just across the border yet receives a fraction of the visitors and publicity. Sadly, it is yet to receive the official status and hence protection of a national park owing to ongoing disputes between loggers and the native Tarahumara indians, yet for visitors offers magnificent walking and panoramic vistas. Access to the Copper Canyon is via the scruffy frontier mining town of Creel or better still the fabulous Chihuahua-al-Pacífico railroad (or “el Chepe”). This is among Latin America’s great train journeys and blazes a spectacular trail from Los Mochis on the Pacific coast up into the dizzying heights of the canyon.