A California ranch was marked for a 403-acre quarry; after 10,000 objections, a land trust paid $23 million to stop development

A vast stretch of California ranchland once faced the prospect of becoming an industrial mining site, with a proposed 403-acre quarry threatening grasslands, oak woodland, waterways and a landscape held sacred by the ‘Amah Mutsun Tribal Band.’ The development plan triggered years of opposition, finally drawing more than 10,000 public objections to Santa Clara County. In January 2026, however, the story took a different turn. The ‘Peninsula Open Space Trust (POST)’ paid about $23 million to acquire another 2,284 acres of the historic Sargent Ranch, permanently protecting the core of the Juristac Tribal Cultural Landscape and bringing the proposed quarry project to an end. The purchase was the result of a long campaign involving tribal members, conservation groups and thousands of supporters. What had been a battle over the future of the land became one of California’s most significant conservation victories.California ranch quarry plan threatened 403 acres before conservation victoryThe proposed Sargent Ranch Quarry had hung over the landscape for years. According to Green Foothills, the project would have created an open-pit sand and gravel mine, destroying more than 400 acres of habitat and carving three enormous pits into the hillsides. The proposal also included a vast industrial operation. The planned mine was expected to generate hundreds of truck journeys each day and pump around 76,000 gallons of groundwater daily for mining activities.‘Protect Juristac’ reported that the wider project would have included three massive mining pits, a conveyor belt system, new roads and a processing facility roughly the size of 46 football fields. The organisation warned that the development would have permanently altered hundreds of acres of grassland and oak woodland. There were also concerns about the impact on local water. Erosion, runoff and groundwater extraction from the mining operation could have affected Sargent and Tar Creeks, which flow into the Pajaro River.$23 million purchase by a land trust secured the future of the threatened landscapeThe decisive turning point came on 29 January 2026, when the POST announced that it had purchased an additional 2,284 acres of Sargent Ranch for $23.04 million. According to GlobeNewswire, the acquisition brought the amount of protected land at the former Sargent Ranch to 6,114 acres. Commitments were also in place to secure the remaining parcels, with the full ranch covering about 6,500 acres. POST had acquired land at the ranch in October 2024 and had invested $63.7 million in the project by early 2026. The organisation described the overall undertaking as the largest land conservation purchase in its nearly 50-year history.Juristac became the centre of a decade-long campaignThe fight against the mine was not simply about preserving open space. The ‘Amah Mutsun Tribal Band’ considers the area, known as Juristac, a sacred cultural landscape with deep spiritual and historical importance. According to Protect Juristac, ceremonies and healing rites were held on the land for millennia. The landscape contains interconnected sacred sites, village locations, springs and other places linked to traditional cultural practices. The Amah Mutsun Tribal Band began publicly opposing the proposed quarry in 2016. Their efforts later grew into a wider coalition involving environmental, Indigenous rights, faith-based and community organisations. Public support steadily increased. Protect Juristac reported that more than 29,000 people signed a petition calling for the land's protection, while seven local city councils unanimously passed resolutions opposing the mine.More than 10,000 objections showed the scale of oppositionThe strength of public opposition became especially clear during the environmental review of the quarry proposal. According to Protect Juristac, Santa Clara County received a record-breaking total of more than 10,000 comment letters opposing the mine. The campaign took many forms beyond written objections. Tribal members and supporters organised public rallies, meetings and a five-mile prayer walk in 2019. In 2023, around 400 supporters attended a rally in San Jose during the public comment period for the project's Environmental Impact Report.Green Foothills later reported the eventual outcome as a historic victory made possible by thousands of people who signed petitions, contacted elected officials, attended rallies and spoke out for Juristac. The long-running campaign demonstrated how opposition to a major development can extend far beyond environmental concerns. For many involved, the future of Juristac was also connected to cultural survival.Why does protecting Sargent Ranch matter beyond the quarry fightThe conservation victory also protected an important ecological link. As reported by GlobeNewswire, the ranch connects the Santa Cruz Mountains with the Gabilan and Diablo ranges, allowing wildlife to move across the wider region. Species such as mountain lions and badgers can use this landscape to move between territories. The property also contains wetlands and waterways that provide habitat for threatened animals, including California red-legged frogs, California tiger salamanders and steelhead trout.Green Foothills reported Juristac as a landscape of grassy hillsides, ancient oak groves, sycamore woodland, freshwater wetlands and rare natural tar springs. The purchase therefore did more than prevent one proposed quarry. It permanently changed the future of a landscape that had faced industrial development. For the Amah Mutsun Tribal Band and the many people who supported the campaign, the outcome marked the end of a struggle that had lasted for more than a decade. The planned mine is no longer a threat, while thousands of acres of culturally significant and ecologically valuable land are now protected for the future.Catch the latest World News and Live updates. Download the TOI app.