TUCSON, Ariz. — Liberty Star Minerals, a U.S.-based mineral exploration company, announced on April 20, 2026, that it has expanded its holdings in southeast Arizona by staking 13 new mineral exploration permits, or MEPs, covering roughly 11 square miles. This move increases the company's total mineralized footprint to approximately 45 square miles, positioning its subsidiary, Hay Mountain Holdings, LLC, as the largest independent mineral land package in the state not controlled by a major mining corporation.
The new claims build on an earlier announcement from March 10, 2026, and complete what Liberty Star describes as a district-scale consolidation within the historic Tombstone Mining District. According to the company, the expanded position now secures every target identified through extensive geologic mapping, rock sampling, and induced polarization surveys conducted over recent months.
"Our dedicated team followed the geology wherever it led, and then we moved to protect it," said Pete O’Heeron, chairman of Liberty Star Minerals, in a statement released via GlobeNewswire. He added, "Forty-five square miles of multi-mineral opportunities across gold, copper, molybdenum, and critical minerals, so important to U.S. economic and national security. This positions us to attract a serious mining partner and execute our strategic plan. This is a district-scale asset in one of the best mining addresses on earth."
Liberty Star, which trades on the OTCQB market under the ticker LBSR, focuses on strategic minerals vital to national security and economic interests. The company's Hay Mountain Holdings includes several projects in the region, such as the Red Rock Canyon Gold Project, the Earp Ridge Copper Project, and American Strategic Minerals, all situated within what is known as a regionally significant porphyry copper-gold-molybdenum system.
Southeast Arizona has long been recognized as one of the world's most prolific mineral-producing areas, particularly along the porphyry copper belt. This region has yielded numerous large-scale discoveries of copper, gold, and molybdenum over the decades, contributing significantly to Arizona's status as a leading U.S. producer of these metals. State officials and industry analysts often highlight the area's potential amid increasing global demand for critical minerals used in electronics, renewable energy technologies, and defense applications.
The Tombstone Mining District, where Liberty Star's claims are concentrated, carries a rich history dating back to the late 19th century silver boom that put the town of Tombstone on the map. While silver mining dominated early operations, modern exploration has shifted toward copper and associated metals, driven by advancements in geophysical surveying and the need for domestic sources of raw materials.
Liberty Star's strategy emphasizes joint venture partnerships to advance its projects, reflecting a broader trend among junior exploration companies seeking to leverage larger firms' resources for development. The company stated it is committed to promoting U.S. mineral independence through domestic exploration, aligning with federal initiatives to reduce reliance on foreign supplies, particularly from geopolitically sensitive regions.
Details of the new staking were outlined in the company's press release, which noted that the 13 MEPs were filed to cover untapped targets flagged by recent data. This consolidation, according to Liberty Star, locks up the full suite of prospects in the district, providing a comprehensive platform for future drilling and assessment.
While the announcement highlights the scale of the holdings, Liberty Star cautioned investors about the exploratory nature of its operations. As an "Exploration Stage Issuer" under U.S. securities regulations, the company currently reports no proven mineral resources or reserves. Forward-looking statements in the release, such as projections for attracting partners or achieving discoveries, are subject to risks including market fluctuations, regulatory hurdles, and geological uncertainties, as detailed in the firm's SEC filings, including its Annual Report on Form 10-K.
The push for critical minerals comes at a time when the U.S. government is prioritizing domestic production to bolster supply chains. Arizona, with its favorable geology and mining-friendly policies, ranks among the top jurisdictions for copper output, producing over 70% of the nation's total in recent years, according to U.S. Geological Survey data. Liberty Star's expansion taps into this momentum, potentially drawing interest from major miners like Freeport-McMoRan or Rio Tinto, both active in the state.
Local stakeholders in Cochise County, where much of the activity is centered, have mixed views on such expansions. While mining supports thousands of jobs and generates substantial tax revenue—estimated at billions annually for Arizona—environmental groups have raised concerns about water usage and habitat disruption in the arid region. Liberty Star did not address these issues in its announcement, focusing instead on the economic and security benefits.
Further details on the company's plans include ongoing fieldwork, with updates promised as new assay results or geophysical data emerge. Tracy Myers, Liberty Star's investor relations contact, can be reached at 520-425-1433 or via email at info@lbsr.us for additional inquiries. The company's website, www.lbsr.us, provides more information on its portfolio.
In the broader context of global mineral markets, Liberty Star's move underscores the intensifying competition for prime exploration acreage. With U.S. imports of critical minerals still dominating supply—over 90% for some elements like cobalt and rare earths—the development of assets like Hay Mountain could play a role in enhancing national resilience. Analysts note that while early-stage projects like this carry high risks, successful partnerships could lead to significant value creation.
As Liberty Star advances its exploration efforts, the eyes of the industry will be on southeast Arizona. The region's proven track record, combined with the company's ambitious staking, sets the stage for potential breakthroughs. Whether this leads to major discoveries or attracts a deep-pocketed partner remains to be seen, but for now, Liberty Star has solidified its position as a key player in the quest for America's mineral future.
The announcement also ties into Liberty Star's evolution from its earlier focus on uranium, as reflected in its legacy name, Liberty Star Uranium & Metals Corp. Today, the emphasis is squarely on copper and critical minerals, adapting to shifting market demands and policy priorities.