Learn About the Park


Organ Pipe Cactus National Monument was created in 1937 as a way to preserve a representative area of the Sonoran Desert. The new monument was part of a movement in the National Parks to protect not just scenic wonders but also the ecological wonders of the country. Over 75 years later, Organ Pipe Cactus is now one of the best preserved examples of the Sonoran Desert wilderness.

Within the monument, signs of human use are also preserved and protected. The monument is the site of culture and history that reflect long, widespread and diverse use by American Indian, Mexican, and European groups. The intesection of these of these three cultures is significant archeologically, geographically, and internationally.

Please explore the information below to learn more about this amazing place.


Organ Pipe Cactus National Monument news releases and visitor guides

Photos and Multimedia

Public domain photos, multimedia videos and presentations. More>

History and Culture

Explore the human stories of Organ Pipe Cactus. More>


Learn about the Sonoran Desert, plants, animals, and climate. More>

Science & Research

Find out how we know what we know about the monument. More>


Information on planning a classroom visit to Organ Pipe Cactus. More>

Kids and Youth

Links to the Web Ranger, Junior Ranger, and Desert Ranger programs. More>


Park management documents, park-wide reports and laws and policies. More>


Purchasing books and goods through the Western National Parks Association bookstore helps to support Organ Pipe Cactus. More>


Printable information about Organ Pipe Cactus, including the park newspaper. More>


Last updated: July 18, 2022

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Contact Info

Mailing Address:

10 Organ Pipe Drive
Ajo , AZ 85321


520 387-6849

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