Judge Halted Mining at Mojave National Preserve

A federal court ruled that the National Park Service violated the law when approving the Colosseum project.

Updated on Sept. 23, 2026 in National Parks

Bold flat-color editorial illustration featuring a geometric desert plateau with a stark rectangular indentation, evoking legal action against mining in protected lands. — A federal judge halted the Colosseum gold and rare earth mining project at the Mojave National Preserve, ruling the National Park Service's 2025 approval was unlawful. AI Illustration. Upload story photo >

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A U.S. District Court judge issued a preliminary injunction against the Colosseum gold-rare earth mining project. The court determined the National Park Service's 2025 project approval was unlawful.

Why it matters

The ruling halts operations at the site to ensure regulatory compliance, as the previous approval failed to meet legal requirements. The company must now secure the area to protect the preserve's environment.

The court granted Dateline Resources a 10-week window to secure the site and demobilize equipment. The Colosseum gold-rare earth project is located within California's Mojave National Preserve.

The players

Dateline Resources

This mining company operates the Colosseum gold-rare earth project located in California.

National Park Service

This federal agency is responsible for managing the Mojave National Preserve and previously authorized the mining project.

The details

The court mandate requires Dateline Resources to cease all mining activities until it can secure updated project approval. The ruling specifically targets the 2025 authorization granted by the National Park Service.

The National Park Service approved the Colosseum project in 2025.
A U.S. District Court issued a preliminary injunction on September 23, 2026.
Dateline Resources has 10 weeks to secure the site and demobilize.

Travel Outlook

This injunction highlights the tension between industrial resource extraction and the conservation mandates of the National Park Service Organic Act. Such legal challenges reflect broader shifts in how protected lands are balanced against mining demand in the Western United States.

Visitors to the Mojave National Preserve should expect ongoing site security operations during the 10-week demobilization period. Travelers should monitor official agency updates to determine if specific access points remain affected by equipment removal.

The takeaway

The court's decision underscores the strict legal standards required for industrial development within protected federal preserves. Developers must ensure comprehensive regulatory compliance to avoid significant operational delays and costs.