The first ever atlas of ultra marathons. 100 of the world's greatest ultra marathons alongside stunning artworks, maps, elevation profiles and inspiring photography. In this ultimate guide to ultrarunning, dive into 100 of the world's most breathtaking and brutal ultramarathons - from the icy tundras of Sweden to the sun-scorched deserts of the USA, and the rugged mountains of Europe. Whether you're a seasoned marathoner in search of your next challenge, an aspiring runner eager to tackle your first ultra, or just wanting to marvel at the extraordinary adventures undertaken by these most elite athletes, each race is meticulously detailed with all the essential information: where to start, how to get there, and what it takes to reach the finish line. Packed with a foreword by Susie Chan, the first European woman to complete all three Badwater Ultramarathon races in the same year, insightful interviews with world-renowned runners and the visionary founders of these epic races, alongside detailed maps, elevation profiles, stats, and stunning, four-color photography, this is the definitive guide to the world of ultrarunning, crafted by adventurers, runners and authors Jen and Sim Benson.