Organ Pipe Cactus National MonumentIn a remote and wild area in Southern Arizona, you can visit the largest concentration of organ pipe cactus.
Chiricahua National MonumentAn enormous collection of weirdly-shaped rock pinnacles, remnants of a huge volcanic eruption about 25 million years ago, cover the higher regions of the park.
Saguaro National ParkThe park gets its name after the Saguaro cactus, which can live as long as 200 years, growing over fifty feet tall and weighing more than ten tons.
Petrified Forest National ParkThe park takes its name from the remnants of ancient trees which have been transformed into brilliantly colored minerals through a series of geological (...)
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