Organ Pipe Cactus National Monument
Hours
See this week's hours below.
- Entrance fee
- $25 · private vehicle
- Phone
- 520-387-6849
- Address
- 10 Organ Pipe Drive, Ajo, AZ 85321
About Organ Pipe Cactus
Look closely. Look again. The sights and sounds of Organ Pipe Cactus National Monument, an International Biosphere Reserve, reveal a thriving community of plants and animals. Human stories echo throughout the Sonoran Desert, chronicling thousands of years of desert living. A wilderness hike, a scenic drive, or a night of camping will expose you to a living desert abounding with hidden life.
Hours
Organ Pipe Cactus National Monument
The monument is open 365 days a year and park roads and trails are open 24 hours. There is no gate at the monument entrance; entrance fees are paid for at the visitor center. There is no dispersed camping allowed anywhere in the monument. US-Mexico Border hours are 6 am-8 pm. The main season for visitors is December through the end of April, during the mild winter months and wildflower season. Campgrounds may fill during this time; check Recreation.gov for campsite availability.
| Monday | Open 24 hours |
|---|---|
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| Thursday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
| Sunday | Open 24 hours |
Entrance fees
| Private Vehicle | $25 | Valid for 7 days. This fee includes all occupants of a non-commercial vehicle. |
|---|---|---|
| Motorcycle | $20 | Valid for 7 days. Admits up to 2 private, non-commercial motorcycles with up to 4 total passengers. |
| Per Person | $15 | Valid for 7 days. This fee applies to bicycles and walk-ins (per person) |
An America the Beautiful pass covers the entrance fee at every site that charges one.
Getting there
The Kris Eggle Visitor Center is located on Highway 85 approximately 25 miles south of Why, AZ and 5 miles north of Lukeville, AZ, just before the US-Mexico Border.
Weather
Summer months are hot, with temperatures exceeding 100F during the day and night-time temperatures in the high 70's. Winter months are milder, with temperatures in the 70s during the day and 30's to 40's in the evening.
Things to do
Astronomy, Auto and ATV, Backcountry Camping, Backcountry Hiking, Biking, Birdwatching, Bookstore and Park Store, Camping, Car or Front Country Camping, Front-Country Hiking, Group Camping, Guided Tours, Hiking, Horse Camping (see also Horse/Stock Use), Horse Camping (see also camping), Horse Trekking, Horseback Riding, Junior Ranger Program, Museum Exhibits, Off-Trail Permitted Hiking, Park Film, RV Camping, Road Biking, Scenic Driving, Self-Guided Tours - Auto, Self-Guided Tours - Walking, Shopping, Stargazing, Wildlife Watching.
Source: National Park Service data feed, checked September 24, 2026. Hours shown are the Park Service's posted standard hours plus any date changes it lists. Official page for Organ Pipe Cactus ↗