North of Prescott, AZ. We were camping in the headwaters of the Verde River, at the base of the Mogollon Rim, the southwestern edge of the Colorado Plateau. The dogs and I took off on a mountain bike ride to Hell Canyon, right from the travel trailer's door. How can you resist a place-name like that? We were on a flat stretch of overgrazed ground. You don't really see much of that on western public lands anymore, thanks to the environmental lobby. There! For once, I've given them a well-earned compliment. The dogs loved running on the flat dirt roads on the way to Hell Canyon. We finally arrived at the canyon, at the point of a large railroad bridge and a highway bridge built back in the Depression. Both were picturesque. Looking at these tracks over Hell Canyon brought an image to mind: the boys playing chicken with a train in Rob Reiner's wonderful movie, "Stand by Me." Since I had missed that experience as a lad, I felt a perverse desire t