A race that may be the greatest challenge of your life. The 100 mile (161km) course will take you through the most rugged, remote and beautiful terrain in Alberta's stunning Rocky Mountains. With 6,400m of elevation gain across the course, this race will punish those who are not prepared. Racers have 30 hours to complete the grueling event. The course is split into seven stages, each featuring a geographic and historic highlight of the area. The race's name is inspired by the treacherous Seven Sisters Mountain that looms over much of the course.