Organ Pipe Cactus National Monument

Organ Pipe Cactus National Monument celebrates the life and landscape of the Sonoran Desert. In this desert wilderness, you may drive a lonely road, hike a backcountry trail, camp beneath a clear desert sky, marvel at magnificent cactus, or soak in the warmth and beauty of the Southwest.

We welcome you into this desert wild. It is yours to discover.

		What to do? There is always something to do in this desert, whether you are interested in RVing, car camping, primitive camping, driving a lonely road or slinging a pack and heading out to the wilderness for an afternoon. Click here for more information on camping, driving, and hiking in Organ Pipe Cactus National Monument. more...

		Nature and Science Adaptation is key to surviving in a desert environment. Learn about some of our unique species and how they have learned to live in this unique place more...

		Education in ORPI As a destination for education, find out more about La Ciénega Project including updates on pupfish data and curriculum links as well as how to get your class involved more...

Ranger Minutes

Ranger Minutes are short video segments designed not only to educate, but also to highlight many of the different things that make the Sonoran Desert so special.
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Write to

Organ Pipe Cactus National Monument
10 Organ Pipe Drive
Ajo, AZ 85321

Phone

Visitor Information
(520) 387-6849 ext. 0

Administration
(520) 387-6849 ext. 7501

Climate

Where summer spends the winter... warm days (60s F) and chilly nights (40s F) are common during the late fall to early spring, with occasional rains. Most of our visitation happens between December and March. Consistent winter rains will produce gorgeous spring wildflowers. Early summer days are hot and dry with temperatures in the 100s and humidity below 10%. Late summer monsoons bring fantastic lighting and furious thunderstorms. Temperatures drop to 90s, however the humidity increases. Plan on getting up early and taking an afternoon siesta in the shade if you plan to visit us in the summertime.
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Communities Surrounding Organ Pipe Cactus National Monument

Note: The times listed below are approximate driving times to the park.
Lukeville, AZ (4 min. ) Ajo, AZ (41 min. ) Pop. 3,705	San Simon, AZ (51 min. )


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