Arrowhead 135

Every year in the heart of winter, runners, bikers, and skiers challenge themselves to cross 135 miles of terrain in the remote woods of northern Minnesota. This title introduces readers to one of the coldest ultramarathons on the planet, a race that begins in the "Icebox of the Nation" and only gets tougher from there. The title features informative sidebars, exciting photos, a map, a glossary, and an index. SportsZone is an imprint of Abdo Publishing, a division of ABDO. Glossary of key words Index Infographics Informative sidebars Table of contents Extreme endurance sports test athletes' physical and mental strength as they compete in some of the most brutal conditions imaginable. Extreme Sports Events gives readers a glimpse into the challenges of the race, how athletes prepare, and the physical and mental toll the race takes on competitors. This series introduces readers to some of the world's most intense competitions. Aligned to Common Core Standards and correlated to state standards. SportsZone is an imprint of Abdo Publishing, a division of ABDO.