15,781-Foot Mt. Blanc Speed Record Shattered Today! Killian Jornet & Matheo Jacquemoudย leftย St. Michelโs church (where all Mt. Blanc summit attempts begin) in Chamonix, France at 4:46am on July 11th, 2013. ย They used the winter ski mountaineers route to begin their speed ascent of 15,781-foot Mt. Blanc. From there they ran up 12,500 vertical feet of road, trail, scree, forest, and glacier to arrive at the summit of […] SnowBrains | July 11, 2013 5 Comments