BORDER ENVIRONMENT / Modified jul 8, 2025 9:02 a.m.

New report warns Arizona border wall could destroy critical jaguar migration corridor

Environmental groups cite endangered species risks in San Rafael Valley as DHS fast-tracks construction, bypassing key environmental protections .

patagonia san rafael Looking west toward the San Rafael Valley and the Patagonia Mountains.
Steve Riggs/AZPM

Plans for a new border wall are underway in the San Rafael Valley in southeastern Arizona.

Environmental groups like the Center for Biological Diversity are raising concerns at how it could impact a migration corridor for endangered wildlife like jaguars and ocelots in a recently published report.

Russ McSpadden with the Center says this specific corridor has had the most modern Jaguar detections in the last 100 years.

“This is the corridor that has been used by at least three jaguars since 2015, and that’s El Jefe, Yo’oko and O:shad, so that’s the big concern,” McSpadden said.

He also cited concerns that the Department of Homeland Security has fast-tracked construction of the tentative 30-foot-tall steel bollard wall by issuing waivers of environmental laws such as the Endangered Species Act, National Environmental Policy Act and Clean Water Act.

The Center and other groups filed comments to U.S. Customs and Border Protection asking them to reconsider the construction and commit to science-based mitigation measures.

Homeland Security awarded a $309.46 million contract to North-Dakota based contractor Fisher Sand & Gravel Co. to build 27 miles of new wall within the CBP’s Tucson Sector in Santa Cruz County.

“They issued a contract with Fisher, Sand and Gravel which has a history of environmental violations and so that’s also concerning that some of this work could just be done roughshod through the area,” McSpadden said.

The company was sued in 2019, by the federal government for impacting hydrology on border wall construction in Texas and violating a treaty with Mexico under the International Boundary and Water Commission.

Construction is expected to start later this year.

By posting comments, you agree to our
AZPM encourages comments, but comments that contain profanity, unrelated information, threats, libel, defamatory statements, obscenities, pornography or that violate the law are not allowed. Comments that promote commercial products or services are not allowed. Comments in violation of this policy will be removed. Continued posting of comments that violate this policy will result in the commenter being banned from the site.

By submitting your comments, you hereby give AZPM the right to post your comments and potentially use them in any other form of media operated by this institution.
AZPM is a service of the University of Arizona and our broadcast stations are licensed to the Arizona Board of Regents who hold the trademarks for Arizona Public Media and AZPM. We respectfully acknowledge the University of Arizona is on the land and territories of Indigenous peoples.
The University of Arizona