GoldMining Expands Portfolio of Active Exploration Assets in Brazil, New 'Colíder' Exploration Concession Granted in Mato Grosso State
Written by Emily J. Thompson, Senior Investment Analyst
Updated: Nov 12 2025
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Should l Buy USGO?
Source: PRnewswire
Exploration Claim Renewal: GoldMining Inc. has successfully renewed its exploration claim for the Colíder Project in Brazil, valid for three years, allowing the company to prepare a final exploration report.
Project Background: The Colíder Project, covering 10,000 hectares in Mato Grosso State, has a history of exploration dating back to the 1990s and is part of the Alta Floresta Gold Belt, known for its gold mining activities.
Historic Exploration Data: The company is currently validating historic exploration results, which include previous drilling and soil sampling that indicated the presence of gold and copper mineralization.
Future Plans: GoldMining's CEO expressed optimism about the Colíder Project's potential and plans to compile historic data and conduct systematic exploration to assess the project's viability further.
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Analyst Views on USGO
About USGO
U.S. GoldMining Inc. is a Canada-based exploration and development company. The Company is focused on advancing the 100% owned Whistler Gold-Copper Project, located 105 miles (170 kilometers) northwest of Anchorage, Alaska, the United States of America. The Whistler Project consists of several gold-copper porphyry deposits and exploration targets within a large regional land package entirely on State of Alaska mining claims totaling approximately 53,700 acres (217.5 square kilometers). The Whistler Project has indicated resources of over 6.5 million gold equivalent ounces and inferred resources of 4.2 million gold equivalent ounces. Mineral resources have been estimated at three gold-copper porphyry deposits (Whistler, Raintree West and Island Mountain) and several additional geophysical and geochemical targets anomalies contain mineralized drill intersections that require follow-up drilling.
About the author
Emily J. Thompson
Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.
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See More
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- Mineralization Extension Potential: Drilling results indicate that the mineralization depth of the São Jorge gold deposit may extend, particularly to the northwest, and further systematic drilling will help confirm this potential, enhancing the project's economic viability.
- William South Prospect: Soil geochemical analysis in the William South target area revealed gold concentrations as high as 2,163 ppb Au, with 2025 drilling results showing an impressive 12 meters at 2.38 g/t Au, indicating significant exploration value in this area.
- Infrastructure Advantage: The excellent infrastructure at the project facilitates smooth exploration activities, and GoldMining anticipates achieving significant growth in the rapidly developing Tapajós gold district through ongoing exploration efforts.
See More
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- Depth Extension Discovery: The SJD-136-25 drill hole achieved an impressive result of 19 meters at 1.00 grams per tonne gold from a depth of 425 meters, indicating the potential for depth extension of the mineralization, which could provide critical support for future resource expansion.
- IP Anomaly Confirmation: Processing of 2025 Induced Polarization (IP) data revealed a high chargeability anomaly at the William South area extending over 1 kilometer, with drilling planned for 2026 to further validate its gold potential.
- Infrastructure Advantage: The excellent infrastructure at the São Jorge project supports ongoing exploration activities, with GoldMining planning to advance exploration efforts in 2026 to capture growth opportunities in the rapidly emerging Tapajós gold district.
See More
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- Strategic Value Enhancement: Dumont's previous senior role at Sandstorm Gold Royalties, focusing on streaming and royalty transactions, is expected to provide significant support for GoldMining's asset value creation initiatives.
- Industry Background: With experience as an equity research associate at BMO Capital Markets covering senior gold and copper companies, Dumont's expertise strengthens GoldMining's competitive position in the mining sector.
- Company Vision: GoldMining is focused on acquiring and developing high-quality gold assets across the Americas, and Dumont's addition is anticipated to help the company achieve its strategic goals for long-term shareholder value.
See More
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- Executive Appointment: GoldMining has appointed Martin Dumont as Vice President of Corporate Development and Investor Relations, whose extensive experience in the gold sector is expected to enhance the company's investor communication and strategic execution capabilities.
- Industry Background: Dumont previously held a senior role at Sandstorm Gold Royalties, focusing on streaming and royalty transactions, and his rich industry background will support GoldMining's asset value enhancement efforts.
- Strategic Development: Dumont noted that GoldMining possesses a unique portfolio of high-quality gold and gold-copper assets across the Americas, and he aims to unlock the full value of the company's assets through strategic initiatives and investor engagement.
- Educational Credentials: Dumont holds a Bachelor of Business Administration from the University of Guelph and is a Chartered Professional Accountant (CPA, CA), providing a solid foundation for GoldMining's financial and operational decision-making.
See More
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- Exploration Success: The 2025 scout drilling program at the Whistler Orbit completed 169 shallow drill holes, ranging from 3 to 8 meters deep, successfully collecting basal till samples from all holes, indicating potential gold-copper mineralization and laying the groundwork for deeper drilling in 2026.
- Resource Growth Potential: Systematic exploration targeting over 25 geophysical intrusive body targets revealed multiple gold-copper anomalies, particularly at the Coronet target area, suggesting significant expansion potential for the Whistler deposit, which could substantially increase the company's resource base.
- Favorable Market Conditions: With gold, copper, and silver prices reaching all-time highs, the existing mineral resources and district-scale exploration potential of the Whistler project provide strong support for the company's future growth, marking a potential inflection point.
- Clear Future Plans: The company plans to conduct deeper drilling in the summer of 2026 to validate newly discovered mineralization areas and will release drilling budgets and plans in the coming months, further advancing the project.
See More
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- Significant Exploration Results: The 2025 exploration program at the Whistler Project successfully identified four high-priority target areas, indicating new gold-copper mineralization potential that is expected to drive future drilling activities and enhance resource estimates.
- Drilling Program Implementation: From August to October 2025, the company completed 169 shallow drill holes ranging from 3 to 8 meters deep, successfully collecting basal samples from all holes, with 63% yielding rock chip samples, indicating the presence of potential economic mineralization.
- Geological Feature Analysis: Geochemical and geophysical surveys revealed gold-copper anomalies in the Whistler extensions and Mammoth areas, suggesting the possibility of undetected mineral bodies, with further drilling plans set to commence in the summer of 2026.
- Optimistic Market Outlook: With gold, copper, and silver prices reaching all-time highs, the resource potential and strategic location of the Whistler Project position it as a key driver for the company's future growth, with preliminary economic assessment results expected in Q1 2026.
See More
