The 'haute route' or high-level route is a six day traverse across the mountains and glaciers between Chamonix and Zermatt and is sometimes continued to Saas Fee. The route was first crossed on foot by an English party, at the end of the nineteenth century, before being gradually linked together on skis in the first quarter of the twentieth century.

Zermatt is about 70 km from Chamonix, as the crow flies, but the actual route travelled is much further than this.
Most guided parties take the slightly easier Verbier route but the more difficult route around the Grand Combin may be taken if conditions, group size and ability permit. The route has been completed in under 24 hours!

Both routes require a competent level of off-piste ability, fitness, about one week's touring experience and a guide.