Sustenhorn: An Unexpected Gem A wild & remote feeling run in a less popular region of the Alps→ 21km↑ 2080mΔ 3502MDifficult ⇑ MediumΘ Out & BackClimbing the Sustenhorn Most all of the runs on this site are a result of simply knowing a beautiful area, and then linking the most runnable trails. Not this route. This route is everything I …