With names like "The Reaper," "Dominatrax," and "Armageddon," Bootleg Canyon's series of trails leaves little doubt as to why mountain bike enthusiasts are aiming their tires toward Boulder City. Local mountain-biker and racer Brent Thomson has created this maze of technical and scenic trails just west of Boulder City in the Southern Nevada desert. One of the most extreme portions is in the aptly named "Elevator Shaft" where bikers can fly down a hillside that offers a 22 percent grade.