Dateline Resources Files to Resume Colosseum Gold Mine With DOJ Backing
Key Takeaways
- Dateline Resources filed a motion to stay the preliminary injunction halting Colosseum operations on 18 September 2026 in the US District Court for the Central District of California.
- The Department of Justice is aligned with Dateline in seeking the stay, jointly notifying the NPCA plaintiff on 11 September 2026 — this is a company and the federal government pushing in the same direction.
- If the District Court denies the stay, Dateline has a defined escalation path to the Ninth Circuit Court of Appeals, giving the process a clear procedural structure rather than open-ended uncertainty.
- A Bankable Feasibility Study completed in May 2026 positions Colosseum as shovel-ready, meaning the only barrier to advancing the 100%-owned project is the legal pathway being resolved.
- Colosseum sits 10km north of the Mountain Pass rare earth mine in California's Walker Lane Trend, with Dateline also holding the Music Valley Heavy Rare Earth Project and the reportedly largest strontium deposit in the US at Argos.
Stay motion filed as Dateline pushes to resume Colosseum operations
Dateline Resources Limited has taken active legal steps to resume work at its Colosseum Gold and Rare Earth Project in California, filing a motion to stay the preliminary injunction currently halting operations at the site.
The motion was filed on 18 September 2026 (US time) in the US District Court for the Central District of California by Dateline and its US subsidiary Colosseum Rare Metals, Inc. (CRM). It will be heard by Judge Christina A. Snyder, who issued the preliminary injunction on 10 August 2026 following proceedings brought by the National Parks Conservation Association (NPCA) against the US Government.
Importantly, Dateline is not acting alone. On 11 September 2026, a trial attorney with the Department of Justice (DOJ) and Dateline’s attorney jointly notified counsel for the NPCA that both the DOJ and CRM/Dateline intend to move for a stay pending appeal of the District Court’s August injunction. The alignment between Dateline and federal government legal counsel is a meaningful signal of support for resuming operations.
Managing Director Stephen Baghdadi commented:
Stephen Baghdadi, Managing Director
“This filing starts the clock. We have put strong evidence before the District Court and we will now have a clear path to the Ninth Circuit from here. Our focus is on getting back to work at Colosseum as soon as we can.”
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What a stay motion means — and why it matters for investors
A motion to stay a preliminary injunction is, in plain terms, a request to pause or suspend that injunction while an appeal is being heard. If granted, it would allow Dateline to resume operations at Colosseum before the full appeal process is resolved, rather than waiting out what could be a lengthy legal process with the site standing idle.
The procedural pathway works in stages:
- Stay motion filed with the District Court (Judge Snyder, who issued the original injunction)
- If denied — Dateline has a clear path to escalate to the Ninth Circuit Court of Appeals
- The DOJ has notified the plaintiff of its intent to move for a stay, signalling federal support for resuming operations at Colosseum
The fact that both Dateline/CRM and the DOJ are aligned in seeking the stay matters for investors. This is not a company pushing against government opposition — it is a company and the federal government jointly seeking to lift a halt imposed following a third-party legal challenge. A successful stay would meaningfully reduce the operational delay risk at Colosseum, though the outcome of the motion remains pending.
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Colosseum project context and what comes next
The Colosseum Gold and Rare Earth Project is 100% owned by Dateline, located in the Walker Lane Trend, San Bernardino County, California, approximately 10km north of the Mountain Pass rare earth mine. A gold Bankable Feasibility Study (a detailed engineering and economic study used to support a financing and development decision) was completed on the project in May 2026, underscoring that Colosseum is an advanced project ready to progress once legal hurdles are cleared.
A Bankable Feasibility Study completed in May 2026 established the engineering and economic foundation needed to support a financing and development decision at Colosseum, positioning the project as shovel-ready subject to the legal pathway being resolved.
Dateline also holds a broader California asset base, which provides additional context for the company’s strategic position in the region:
- Music Valley Heavy Rare Earth Project — consolidated in March 2026, located in Riverside and San Bernardino Counties, California
- Argos Strontium Project — also in San Bernardino County, reportedly the largest strontium deposit in the US, with previous celestite production grading 95%+ SrSO4
The immediate next step for investors to watch is the District Court’s ruling from Judge Snyder on the stay motion. The outcome is not certain — the motion has been filed and the evidence placed before the Court, but no result has been determined. If the stay is denied at the District Court level, Dateline has indicated it has a clear pathway to escalate to the Ninth Circuit Court of Appeals. Either way, Baghdadi’s framing that “this filing starts the clock” suggests the company views this as the beginning of a defined legal process, not an open-ended delay.
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