Environmental groups and tribal leaders are demanding an independent accounting of the ecological harm inflicted by Alligator Alcatraz, a migrant detention facility that operated for 12 months in the heart of Florida's Everglades before its recent closure.
The facility, which cost $608 million to build, detained roughly 21,000 people during its tenure. Despite shutting down this week, environmental advocates and the Miccosukee Tribe are pressing for a full investigation into what they call systematic damage to one of the nation's most sensitive ecosystems.
Eve Samples, executive director of Friends of the Everglades, characterized the operation as "a failure, an obscene waste of taxpayer dollars and an abuse of the Everglades." Speaking at a news conference Friday outside the closed facility, Samples and allied groups detailed specific environmental violations that occurred during the detention center's operation.
Twenty acres were paved without required environmental permits. New fencing and high-intensity lighting were installed throughout the compound. The lighting alone affected approximately 2,000 acres of Florida panther habitat, displacing the nocturnal big cats as they moved through the preserve.
Friends of the Everglades filed a lawsuit in June 2025 seeking to block construction at the site. During federal hearings in Miami in August, environmental representatives presented evidence of the facility's impact on surrounding wilderness. The Miccosukee Tribe joined the legal challenge to protect tribal lands and treaty rights, with villages located in close proximity to the massive detention complex.
Located 45 miles west of Miami and surrounded by the Big Cypress National Preserve, a 720,000-acre swamp managed by the National Park Service, the detention center sat at the edge of critical wildlife habitat. The preserve is home to alligators, crocodiles, bobcats, coyotes, and an estimated 200 Florida panthers.
Governor Ron DeSantis defended the facility's design when announcing its closure Thursday, claiming the construction cost reflected the need for a "self-contained" operation to minimize environmental impact. He argued the design protected surrounding lands from contamination.
That assertion drew skepticism at Friday's news conference. Activists pointed out that hazardous materials continue to be transported into the shuttered facility while vehicles carrying human waste are still driving out its gates, suggesting environmental hazards persist even after closure.
The human cost of Alligator Alcatraz also dominated discussion. Ana Maria Hernandez, a civic engagement director for the Florida Immigrant Coalition, described witnessing deplorable conditions inside the facility and detailed the case of a man with legal status who was detained there without explanation.
The man, whom Hernandez identified only as Wilson, had been meeting with Immigration and Customs Enforcement officials annually for 25 years to renew his legal status. Under the Cuban Adjustment Act, he had been granted a work permit and had built a small business in Miami with his wife and two teenage sons.
During his January visit to the ICE office in Miramar, Wilson was arrested without explanation and transferred to Alligator Alcatraz. He was allowed to shower only every three or four days. On one occasion, he was issued soiled underwear with fecal matter. Over more than five months, Wilson was shuttled between the Everglades facility and detention centers in Texas and Louisiana before finally being released in June.
"In Florida people are being detained because of the color of their skin or because they speak English with an accent," Hernandez said. "This is how people who have legal status or are US citizens end up in custody."
Author James Rodriguez: "This detention center embodied the worst impulses of the immigration crackdown: environmental recklessness paired with bureaucratic cruelty, all at a $608 million price tag with nothing to show but damage and heartbreak."
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