- State: AZ
- NPCA Region: Southwest
- Est. Date: 1937
Air & Climate Data
View the 2019 ReportVisibility
Moderate Concern
Health
Moderate Concern
Nature
Significant Concern
Climate
Significant Concern
This section of the Sonoran Desert near the border between Arizona and Mexico features massive cacti, colorful birds and rock arches. An International Biosphere Reserve and a federally designated wilderness area, this park preserves the only large concentration of organ pipe cacti in the country, as well as hundreds of other native plant species, such as saguaro, cholla, mesquite and palo verde trees, and ocotillo. Hike on the park's nine scenic trails or take a drive on the 21-mile Ajo Mountain Drive to experience the vibrant desert landscape.
Issues
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Blog Post
The Border Wall Is Destroying What This Park Was Created to Protect
A firsthand account of the devastation at Organ Pipe Cactus National Monument in Arizona.
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Press Release
Trump Administration Announces Plan for Destructive Border Wall Through National Parks
Border wall would damage delicate park landscapes, block wildlife migration, and disrupt the flow of water.
More about Organ Pipe Cactus
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Read more about Laws Waived for Border Wall Construction
Resource Laws Waived for Border Wall Construction The Department of Homeland Security is waiving the following laws to build proposed sections of border wall in Arizona and California near national park lands.
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Read more about Testimony: Border Wall Issues Forum
Policy Update Testimony: Border Wall Issues Forum Written testimony of Christina Hazard, NPCA Associate Director for Government Affairs, before the House Committee on Natural Resources at the Border Wall Issues Forum on January 15, 2019.
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Read more about The Census Taker
Magazine Article The Census Taker Alex Mintzer has been counting ant colonies at Organ Pipe Cactus National Monument for more than 30 years.
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Read more about Position on H.R. 4760 & H.R. 6136
Policy Update Position on H.R. 4760 & H.R. 6136 NPCA submitted the following position to members of the House of Representatives ahead of floor votes expected on June 21, 2018.
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Read more about Don't Divide Our Habitats, Ecosystems and Communities
Advocacy in Action Don't Divide Our Habitats, Ecosystems and Communities Oppose new walls and fencing along the U.S.-Mexico border.
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Read more about Already Short-Staffed Park Service Asked to Support Border Patrol Security
Press Release Already Short-Staffed Park Service Asked to Support Border Patrol Security This decision could have serious consequences for national parks already struggling with a reduction in staff.
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Read more about A Land Divided
Magazine Article A Land Divided How would a border wall affect national parks?
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Read more about Position on Funding the Border Wall
Policy Update Position on Funding the Border Wall NPCA submitted the following position to the Senate ahead of votes scheduled for February 15, 2018.
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Read more about Sonoran Desert Mystique
Land Based Trip Sonoran Desert Mystique The Sonoran Desert holds mesmerizing contrasts—driven by the most interesting paradox of all: The Sonoran is our hottest North American desert, while it is also our wettest. Light but consistent rains in winter and spring foster more diversity than in perhaps any other desert in the world, from cactus to cottonwoods to cougars.
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Read more about Winter Rains Bring Blooms to Organ Pipe
Blog Post Winter Rains Bring Blooms to Organ Pipe Once dubbed the most dangerous park in the country, these wild Arizona lands are fully reopened, noticeably restored and full of botanic wonders.
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Read more about 9 Wildlife Success Stories
Blog Post 9 Wildlife Success Stories National parks provide critical habitat for a variety of animals—in some cases, they are the only places that threatened or endangered species have left to call home. If those species disappear from a part of the country, parks can play an important role in bringing them back. Here are nine animals that have been reintroduced to their native habitats in national parks.
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Read more about Pipe Dreams
Magazine Article Pipe Dreams Head to Southern Arizona to Discover Organ Pipe Cactus National Monument.
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Read more about Unusual Suspects
Magazine Article Unusual Suspects What triggered the fall of Organ Pipe’s acuña cactus?
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