Published annually since 1948, Accidents in North American Climbing reports on the year's most significant and educational climbing accidents. In each case, we analyze what went wrong, helping climbers prevent or survive similar situations in the future. The 2017 Know the Ropes section is dedicated to the fundamentals of building belay anchors. Danger Zones analyzes accidents in Eldorado Canyon, Colorado, helping climbers plan safer ascents of traditional climbs. Many Essentials stories and other sidebars teach critical climbing and first-aid skills.