Casa Grande Ruins National Monument (U.S. National Park Service)

Casa Grande Ruins National Monument • Arizona

eathern building under modern roof structure

earthern ruins including the Great House and other parts

earthern Great House with its roof among desert plants

earthern Great House standing out in the Sonoran Desert plants

historic copper sign with Great House and saguaro flanking

child, adult female, adult male American Indian actors in costume making jewelry in movie shoot

An Ancestral Sonoran Desert People's farming community and "Great House" are preserved at Casa Grande Ruins. Whether a gathering place for people or simply a waypoint marker in an extensive system of canals and trading partners, the structures are a large part of the story of this site. Explore the history and stories of an extended network of communities and irrigation canals.

A view of the Great House sitting on Compound A

Operating Hours

Hours of operation are 9 am - 4 pm. The monument is open 7 days a week. Closed: Juneteenth, Independence Day, Thanksgiving, & Christmas.

scene from park film with 3 costumed actors making jewelry with stone tools

History and Pre-History

The story of Casa Grande Ruins goes back farther than written history and stretches through decades of change.

A large ancient adobe structure with a protective metal roof structure lit by the sun at sunrise

Current Conditions

Learn about closures and other relevant info before you arrive.

A volunteer talking to a group at a large adobe structure

Public Tours

Guided tours are offered to the public in the late fall and winter as staff is available.

A student holds up a clay pinch pot while another student works on a piece of clay

Education Programs

Casa Grande Ruins National Monument offers a variety of ways for you and your students to experience our site.

A Junior Ranger Badge and Book in creosote with a large adobe structure in the background.

Junior Ranger Program

Earn a Junior Ranger badge during your visit.

Every Kid Outdoors

All 4th graders in America are entitled to a free annual pass to their national parks. Go online to print your voucher, then visit a park!

A family poses for a picture in front of a large adobe structure.

Special Events

Check the calender to catch a special event.

A view inside the bookstore with souvenirs, t-shirts, hats, and more products

Online Park Bookstore

The park bookstore is operated by Western National Parks. Virtually visit and shop online!

close up of prickly pear cactus pad with ripe fruits

Plants of the Sonoran Desert

Desert plants are unique and have an often overlooked beauty.

Last updated: February 18, 2026

Contact Info

Mailing Address:

1100 W. Ruins Drive
Coolidge, AZ 85128

Phone:

520 723-3172
General park contact number includes a phone tree for finding the employee you wish to contact. Callers may dial zero for the phone attendant. Voicemail is available for many of the extensions.