Organ Pipe Cactus National Monument. A lot has changed since then. Now southern Arizona seems like a war zone. The visitor center is named after Kris Eggle, a ranger who was murdered by Mexican drug smugglers. Over 150 miles of illegal roads traverse the monument. Dangers possibly encountered in area include "heat, lack of water, spiky plants, poisonous snakes and the possibility of encounters with armed smugglers and illegal immigrants" (Americansouthwest.net). Nevertheless, the monument assures potential visitors that automobile accidents resulting from fatigue and speed are your most pressing worry.