Walls and barriers have already been constructed across more than 650 miles of the U.S.-Mexico border. These barriers block wildlife migration, cause flooding and damage pristine wild lands, including wildlife refuges, wilderness areas, and national forests. Sierra Club Borderlands advocates for real solutions, such as comprehensive immigration reform with a path to citizenship, that address the root causes of complex border problems.

Border wall construction has blocked access to food and water resources and fragmented animal populations, leaving them vulnerable to genetic isolation, inbreeding and disease.

About Us

We are a coalition representing civil rights, faith, environmental, indigenous, LGBT, and border communities working together to protect the community, culture, land, wildlife, and environmental well-being of the border region.

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Real ID Waiver Authority Compromises Our Borderlands

Real ID Waiver Authority

The unprecedented power granted to the Secretary of Homeland Security (DHS) by Section 102 of the Real ID Act has been used multiple times to "waive in their entirety" dozens of federal laws.

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A growing coalition of organizations across the country that have publicly opposed efforts to expand or replace the border wall.

Our Coalition

A list of local governments and organizations that are against the Wall.

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Film: Ay Mariposa

Ay Mariposa tells a story of La Mariposa, Zulema, and Marianna–three characters in the Lower Rio Grande Valley of Texas whose lives are upended by plans to build a US-Mexico border wall. Watch the Film.

Photo Exhibit: Lens on the Border

Vibrant images of the Southwest landscape, the people, and the communities that have been impacted by walls and would be impacted by more border walls. See the Exhibit.

Storymap: Embattled Borderlands

The borderlands harbor some of North America’s rarest wild species and oldest human cultures. See storymap.

Support the Borderlands Project

Every dollar of your tax-deductible donation will be used to help stop further destruction from border policies and to enhance protections to ensure habitat resiliency in light of climate change impacts.


June 18, 2020

This decision emphasises that for DACA recipients and their families: home is here.  Washington, D.C. — Today, the Supreme Court announced a 5-4 ruling on the Deferred Action for Childhood Arrivals (DACA) program cases, ruling that Trump’s decision…

May 15, 2020

SOUTHERN BORDER—  If putting public safety at risk by accelerating the construction of his vanity border wall during a pandemic wasn’t enough, the Trump administration reached a reckless milestone today by issuing the 30th waiver of federal laws to…

May 14, 2020

TUCSON, Arizona— The Trump administration’s latest border wall plan, which would wall off the last jaguar migration paths and bulldoze Arizona’s Sky Island mountains, has drawn opposition from thousands of people across the country.

May 7, 2020

Update on border wall destruction during COVID19 pandemic.

April 23, 2020

Tucson, AZ— This week, the Sierra Club obtained documents from the U.S. 9th Circuit Court— which is hearing two separate challenges about Trump’s use of military funds for border wall construction. The documents reveal that new projects will begin…

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