Leadville Trail 100 Mile Run:
100 Mile # 4
The Leadville 100 miler. The granddaddy of all endurance trail running events. The renowned “Race Across the Sky” that takes runners on an epic out and back journey across the biggest, baddest, and toughest mountains that Colorado has to offer. 100 miles/160km. 4800 metres elevation gain. A course low point of 2800 metres and a ... read more.