National Monument · Arizona, United States
Organ Pipe Cactus National Monument
Organ Pipe Cactus National Monument is a national monument in Arizona, United States, covering 330,692 acres (133,826 ha), established in 1937.

Photo: Klaus Eltrop via Wikimedia Commons, CC BY-SA 3.0. Cropped and resized for display.
Park facts
| Park type | National Monument |
|---|---|
| Location | Arizona, United States |
| Area | 330,692 acres (133,826 ha) |
| Established | 1937 |
| Coordinates | 31.9540° N, 112.8010° W |
| Managed by | National Park Service |
Every fact above is taken from the sources listed below; anything no source states is left blank rather than guessed.
About Organ Pipe Cactus National Monument
Organ Pipe Cactus National Monument is a U.S. national monument and UNESCO biosphere reserve located in southern Arizona that shares a border with the Mexican state of Sonora. The park is one of the few places in the United States where the senita and organ pipe cactus grow wild. Along with these species, many other types of cacti and other flora native to the Yuma Desert section of the Sonoran Desert region grow in the park. Organ Pipe Cactus National Monument is 517 sq mi (1,340 km2) in size. In 1976 the monument was declared a Biosphere Reserve by UNESCO, and in 1977 95% of the monument was declared a wilderness area.
Description from the park's Wikipedia article (CC BY-SA), linked in the sources below.
Like Organ Pipe Cactus National Monument? Visit Organ Pipe Cactus National Monument’s official park page for hours and current conditions before you travel.
Airports near this park
The airports a visitor would actually fly into, nearest first — each link opens its profile on our sister site AirportProfiles.
- Tucson International Airport (TUS) · Tucson, United States · 109.7 miles away
- Phoenix Sky Harbor International Airport (PHX) · Phoenix, United States · 112.3 miles away
Parks nearby
More parks in Arizona
Frequently asked questions
Where is Organ Pipe Cactus National Monument?
Organ Pipe Cactus National Monument is in Arizona, United States (31.9540° N, 112.8010° W).
When was Organ Pipe Cactus National Monument established?
Organ Pipe Cactus National Monument was established in 1937, per the source listed at the foot of this page.
How big is Organ Pipe Cactus National Monument?
Organ Pipe Cactus National Monument covers 330,692 acres (133,826 ha).
Sources
- https://en.wikipedia.org/wiki/List_of_the_United_States_National_Park_System_official_units — Wikipedia list of National Park System official units — unit name, state, official designation.
- https://en.wikipedia.org/wiki/List_of_areas_in_the_United_States_National_Park_System — Wikipedia list of National Park System areas — year established and gross area.
- https://en.wikipedia.org/wiki/Organ_Pipe_Cactus_National_Monument — Wikipedia article — description (CC BY-SA).
- https://www.nps.gov/orpi/ — Official park page.








