The Turtle Expedition normally doesn't look for trouble, but when we saw 130 miles of remote dirt tracks leading through the 2 million-acre air-to-ground and air-to-air Barry M. Goldwater Air Force ...

With the towering saguaro cactuses stretching up like a picture from the Old West, the Arizona desert stretched barren to the horizon. No cars, no people. Even planes seemed to have found another ...

My first trips to El Camino del Diablo were in the 1970s with my good friend and colleague Dr. Steve McLaughlin. We used a two-wheel drive pickup for our botanical pursuits. Along the Camino, the ...

There is something about the name El Camino del Diablo, the Devil’s Highway, that drew us in. The 114-mile-long trail travels through the Sonoran Desert close to the U.S.–Mexico border in southern ...