This is the best site to start with when wanting to attempt ultra trail running. This classic Rocky Mountail ultra-trailrunning race is held every August near Leadville, Colorado. Leadville site is a pleasure, as well as an interesting look at a historic mining town. This Canadian site, with an emphasis on Alberta, has a host page for the Offical World Championship of Mountain Running. Great local color and easy to navigate.
Races are either ascents or climbs with a mad dash down trecherously steep grades.
Don't miss this site. Related outdoor sites Please do not miss these informative and attractive web sites that all outdoor lovers will enjoy. LNT is essential for all outdoor enthusiasts to understand and practice. Interactive trail mapping. Used under License.