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Ancient site damaged by border wall construction oldest such carving in Americas, research shows

The 1,000-year-old archeological site, Las Playas Intaglio, damaged by border wall construction contractors at Cabeza Prieta National Wildlife Refuge.
Russ McSpadden
/
Center for Biological Diversity
The 1,000-year-old archeological site, Las Playas Intaglio, damaged by border wall construction contractors at Cabeza Prieta National Wildlife Refuge.

New research out this month estimates an Indigenous geoglyph damaged earlier this year by border wall construction along the Arizona-Mexico border is older than previously understood.

The Las Playas Intaglio is a Tohono O’odham sacred site that features a huge fish-shaped earth carving right along the border in what is today the Cabeza Prieta National Wildlife Refuge.

Researchers in this month’s SSA Archaeological Record say the site was recently dated using rock and soil samples, and updated methodology. It was found to be at least 6,500 years old — making it the oldest such carving on record in the Americas.

The House Natural Resources Committee met to review President Donald Trump’s funding proposal for the Interior Department, but Arizona Congresswoman Adelita Grijalva took that opportunity to talk about Las Playas Intaglio.

Russ McSpadden, Southwest conservation advocate with the Center for Biological Diversity, says it’s an exciting new development.

“You know, older than Stonehenge, older than the pyramids in Egypt,” he said. “But at the same time, it’s doubly tragic, because there was significant damage done to it back in April."

That’s when border wall contactors drove heavy machinery through the site. Aerial photos and video captured by McSpadden show wide, red-dirt track marks going through a large section of black volcanic rock of the fish body.

CBP did not respond to questions about what steps it’s taking to mitigate those damages in time for publication.

A bulldozer parked atop the damaged Las Playas Intaglio inside the Cabeza Prieta National Wildlife Refuge.
Russ McSpadden
/
Center for Biological Diversity
A bulldozer parked atop the damaged Las Playas Intaglio inside the Cabeza Prieta National Wildlife Refuge.
More Southwest Border news

Alisa Reznick is a senior field correspondent covering stories across southern Arizona and the borderlands for the Tucson bureau of KJZZ's Fronteras Desk.