casa-grande-ruins | AZ | Find park

eathern building under modern roof structure

The Great House at Casa Grande Ruins has existed for over 600 years.

earthern ruins including the Great House and other parts

A highlight of Compound A is the Great House but it is not the only earthern building to intrigue visitors.

earthern Great House with its roof among desert plants

The Great House at Casa Grande Ruins is a sentinel of the desert.

earthern Great House standing out in the Sonoran Desert plants

The Great House at Casa Grande may have been an orientation point for travelers and traders.

historic copper sign with Great House and saguaro flanking

The park's historic copper sign was relocated with roadway changes, and now sits near the visitor center.

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

In this scene from the park movie, actors demonstrate jewelry making as done in ancestral times.

Physical Address:

1100 W. Ruins Drive

Coolidge, AZ 85128

Mailing Address:

1100 W. Ruins Drive

Coolidge, AZ 85128

contact-details

Phone Number: 5207233172 Voice
Phone Number: 5207237209 Fax

Email Address: cagr_ranger_activities@nps.gov
Description: General park information and specific questions will be received at this email address and answered by appropriate park staff.

Fees

Entrance Fees

Entrance Passes

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.

park designation:National Monument

Directions:

Transportation is by private vehicle. The park is in Coolidge, Arizona, about an hour-long drive from either Phoenix or Tucson. From Interstate 10 take the Coolidge exits and follow the signs to the park entrance.

For detailed directions, please visit this link.

Directions

Operating Hours:

Operating Hours

The monument is open 7 days a week, with the exception of being closed Juneteenth, Independence Day, Thanksgiving, and Christmas. The gate closes 15 minutes prior to closing, with access for exiting the park still available on the outgoing side.

Exceptions:

Thanksgiving Day (November 27, 2025 - November 27, 2025)

Christmas Day (December 25, 2024 - December 25, 2024)

Juneteenth National Independence Day (June 19, 2025 - June 19, 2025)

Independence Day (July 4, 2025 - July 4, 2025)

Weather Information:

Summer daytime temperatures frequently exceed 100 degrees F. Winter temperatures range from the 60's to the 80's F. Spring and fall are warm and dry, with highs in the 80's and 90's F. During summer months, be prepared for hot temperatures. Protective clothing, hats, sunscreen and personal water containers are highly recommended. BE AWARE: Walls of dirt and debris, usually miles wide and thousands of feet high, are pushed across dry desert terrain by high winds, causing dust to engulf highways.