Most people who are into running distances know something about the UTMB. Most long-distance walkers know the route simply as the TMB, or Tour de Mont Blanc.
For those who don't know, here is a map and some information:
And the profile:
Basically the Tour de Mont Blanc is a long distance trail which circumnavigates the Mont Blanc massif, passing through France, Italy and Switzerland en route. It is ca. 103 miles in distance and has an elevation gain in the region of 9000m.
The UTMB is a single stage, semi-self sufficient event and as you might be able to tell I am immensely excited about the prospect of preparing for and running this amazing trail!!