No rundown of terriyfing ski runs is complete without mentioning the infamous Corbet’s Couloir in Jackson’s Hole, Wyoming.

Skier Magazine named it as the number four on their list of ’50 Things To Before You Die’

The hardest section is the drop in – a 20ft freefall off the cornice into a narrow couloir, surrounded by rock on three sides. The less hardy can drop in further down, where it opens out into an expert black run. 

It was famously named after ski instructor Barry Corbet who spotted the funnel-shaped crease and said “Someday I will ski that”. It was in fact local ski patroller Lonnie Ball who was the first to conquer it in 1967.