Casa Grande Ruin Reservation (Arizona)

… was authorized on this date in 1889. It was designated Casa Grande Ruins National Monument in 1918.

Casa Grande

For over a thousand years, prehistoric farmers inhabited much of the present-day state of Arizona. When the first Europeans arrived, all that remained of this ancient culture were the ruins of villages, irrigation canals and various artifacts. Among these ruins is the Casa Grande, or “Big House,” one of the largest and most mysterious prehistoric structures ever built in North America. Casa Grande Ruins, the nation’s first archeological preserve, protects the Casa Grande and other archeological sites within its boundaries. You are invited to see the Casa Grande and to hear the story of the ancient ones the Akimel O’otham call the Hohokam, “those who are gone.”

The Casa Grande was abandoned around 1450 C.E. Since the ancient Sonoran Desert people who built it left no written language behind, written historic accounts of the Casa Grande begin with the journal entries of Padre Eusebio Francisco Kino when he visited the ruins in 1694. In his description of the large ancient structure before him, he wrote the words “casa grande” (or “great house”) which are still used today.
. . .

[S]everal influential Bostonians urged Massachusetts Senator George F. Hoar to present a petition before the U. S. Senate in 1889 requesting that the government take steps to repair and protect the ruins. Repair work began the following year, and in 1892, President Benjamin Harrison set aside one square mile of Arizona Territory surrounding the Casa Grande Ruins as the first prehistoric and cultural reserve established in the United States.

Casa Grande Ruins National Monument

The cover was completed in 1932.