The Zane Grey 50 Mile Endurance Run spans the length of the historic Highline trail beneath the Mogollon Rim, an escarpment on the edge of the Colorado Plateau. The entire Mogollon Rim stretches for over 200 miles across Arizona, but our little run along the highline trail spans a mere 51. While dense Ponderosa Pine forests cover much of the land above and beneath the rim (pretty much as far as the eye can see), the 1990 Dude Fire burned over 28,480 acres of land beneath the rim (affecting many miles of the highline trail between Washington Park and See Canyon), destroyed 63 homes and claimed the lives of 6 firefighters. This fact is important to …