This section of the Sonoran Desert near the border between Arizona and Mexico features ... this park preserves the only large concentration of organ pipe cacti in the country, as well as hundreds of ...

Case Study: Organ Pipe Cactus National Monument Organ Pipe Cactus National Monument was created in 1937 to protect its namesake plant and a scenic, biologically rich portion of the Sonoran Desert. The ...

Researchers are concerned the declines will lessen the scale of and in some cases possibly eliminate the large saguaro forests in Arizona.

Even though they only grow in parts of the Sonoran Desert ... place to see cacti outside of Saguaro National Park is Organ Pipe Cactus National Monument. While Saguaro National Park was created ...

Nestled in the Sonoran Desert, Why, Arizona ... the Tohono Oʼodham Indian Reservation and due north of Organ Pipe Cactus ...