- ParkMark

Be advised that the NPS has issued alerts for this park.

WNP bookstore to go cashless

Beginning Tuesday, July 29, the Western National Parks bookstore here at Casa Grande Ruins will be cashless. The bookstore will accept credit card and contactless payments only.

Casa Grande Ruins Visitor Center to Close Sundays and Mondays through September 22

From July 6 through September 22, 2025, the park visitor center will close each Sunday and Monday, with passport stamps, brochures, and Jr Ranger books available on the visitor center patio. The park itself remains open seven days a week, 9am to 4pm.

Title	Casa Grande Ruins
Park Code	cagr
Description	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 ar...
Location	lat:32.99702582, long:-111.5325383 States: AZ Forecast
Contact	520-723-3172, 520-723-7209 cagr_ranger_activities@nps.gov
Activities	Arts and Culture Craft Demonstrations Cultural Demonstrations Live Music Food Picnicking Guided Tours Junior Ranger Program Park Film Museum Exhibits Shopping Bookstore and Park Store
Entrance fees
Campgrounds	Count: 0
Places	Count: 1 Casa Grande Ruins Rising from the Sonoran Desert floor near the Gila River is one of the largest prehistoric structures ever built in North America. Its purpose remains a mystery, though many have tried to understand and explain its existence. Members of the Anza expedition visited the site in October of 1775 and recorded the measurements of the ruins and transcribed a partial story narrated by an O'odham (Gila Pima) leader.
Visitor Centers	Count: 1 Casa Grande Ruins National Monument Casa Grande Ruins National Monument Construction began in 1932 to create the current adobe visitor center. Funding was provided for only half of the open square building, final completion was delayed until 1956. Exhibits, restrooms, bookstore, and orientation movie are available in the current building. All park visitors enter the historic area by passing through the visitor center.
Things to do	Count: 0
Tours	Count: 0
Articles	NPS Geodiversity Atlas—Casa Grande Ruins National Monument, Arizona 50 Nifty Finds #38: A Germ of an Idea Women Who Were There 2022 Excellence in Education Awards Status and Trends of Vegetation and Soils at Casa Grande Ruins National Monument, 2008–2016 Climate and Groundwater Monitoring at Casa Grande Ruins National Monument Updated Species Database Will Help Boost Amphibian Conservation Across the National Park Service I Didn't Know That!: Biological Soil Crusts 50 Nifty Finds #28: Shuttering in the Cold The Heliograph: 2020 Edition The Heliograph: Summer 2021 Casa Grande and the Antiquities Act Making an Impact: Long-Term Monitoring of Natural Resources at Intermountain Region National Parks, 2021 Staff Spotlight: Alexandra Hernandez 50 Nifty Finds #17: Common Threads Staff Spotlight: Precious Vicente A New Way of Documenting and Imaging Cultural Resources Climate and Groundwater Monitoring at Casa Grande Ruins National Monument, 2017 The Heliograph: Summer 2022 Changing Patterns of Water Availability May Change Vegetation Composition in US National Parks A Changing Bimodal Climate Zone Means Changing Vegetation in Western National Parks Testing Treatments for Mitigating Climate-Change Effects on Adobe Structures in the National Parks Early Custodians of Tumacácori Native Peoples of the Sonoran Desert: The O'odham National Park Getaway: Casa Grande Ruins National Monument Two for the Price of One Substitute Rangers Climate Monitoring in the Southern Plains, Sonoran Desert, and Chihuahuan Desert Saguaro Cactus Growth Eusebio Francisco Kino Southwest River Environments Southern Basin and Range Saguaro Cactus: Sentinel of the Southwest Module Conducts Wildland-Urban Interface Projects Throughout the Intermountain Region Monitoring Upland Vegetation and Soils in the Sonoran Desert and Chihuahuan Desert Networks It’s Alive! Biological Soil Crusts of the Sonoran and Chihuahuan Deserts Climate and Water Monitoring at Casa Grande Ruins National Monument: Water Year 2022 Series: Intermountain Park Science 2021 Series: Native Peoples of the Sonoran Desert Series: Defining the Southwest Series: The New Deal at Tumacácori Lesser Long-nosed Bat Research at Organ Pipe Cactus Guide to the Natt N. Dodge Photograph Collection

WNP bookstore to go cashless

Casa Grande Ruins Visitor Center to Close Sundays and Mondays through September 22

Casa Grande Ruins

Casa Grande Ruins National Monument