Colibri Resource Commences Drilling at EP Gold Project, Sonora, Mexico
Rhea-AI Summary
Colibri Resource (CRUCF) has commenced a new phase of exploration at its flagship EP Gold Project in the Caborca Gold Belt, Sonora, Mexico on December 8, 2025. A reverse circulation (RC) drill rig is on site, crews are mobilized, and initial holes are being drilled across the project's 4,766-hectare land package.
The project is described as strategically located within and adjacent to concession holdings of Fresnillo, highlighting the district-scale setting and favourable geology for gold exploration. An on-site image of the RC rig is available via the company image link.
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Key Figures
Market Reality Check
Peers on Argus
Peers showed mixed moves: one up 11.27%, others down as much as 43.75% or flat, while CRUCF gained 14.75%, indicating a stock-specific reaction to the drilling news rather than a broad sector move.
Historical Context
| Date | Event | Sentiment | Move | Catalyst |
|---|---|---|---|---|
| Nov 14 | Private placement | Neutral | +20.0% | Over-subscribed private placement to fund exploration at Pilar and EP. |
| Sep 24 | Targeting update | Positive | +0.0% | TerraEye engagement to apply AI and satellite data at EP. |
| Sep 16 | Growth strategy | Positive | -0.5% | Outlined growth strategy centered on EP and Pilar projects. |
| Aug 19 | JV project progress | Positive | +5.9% | JV partner secured permit for 50,000-tonne pilot facility at Pilar. |
| Aug 18 | Board change | Neutral | +741.6% | Director resignation and appointment of experienced replacement. |
Recent news often led to price moves that diverged from the apparent positive or neutral tone, with only one of five events showing clear alignment.
Over the last few months, Colibri reported financing, technical progress, and corporate changes. An over-subscribed private placement raised C$1,491,702 to fund exploration, including EP. Earlier updates highlighted advanced targeting at the EP Gold Project and a broader growth strategy centered on EP and the Pilar joint venture. Operationally, Pilar advanced with a 50,000-tonne pilot facility and strong metallurgical results. Board changes in mid-August 2025 also coincided with a sharp price move. Today’s drilling start at EP follows these funding and targeting steps.
Market Pulse Summary
This announcement marks the start of reverse circulation drilling at the 4,766-hectare EP Gold Project, following earlier work on targeting and recent financing to support exploration. The project lies within a major producing district, adding geological context but not guaranteeing outcomes. Investors may watch for drilling progress updates, specific assay results, and how these tie back to previously identified targets to assess how effectively Colibri converts its exploration strategy into tangible resource potential.
Key Terms
reverse circulation technical
AI-generated analysis. Not financial advice.
Strategically Located Within and Adjacent to Fresnillo Plc Concessions
Dieppe, New Brunswick--(Newsfile Corp. - December 8, 2025) - Colibri Resource Corporation (TSXV: CBI) ("Colibri" or the "Company") is pleased to announce that drilling has commenced at its flagship EP Gold Project, a 4,766-hectare land package strategically located in the Caborca Gold Belt, Sonora, Mexico. A reverse circulation ("RC") drill rig is now on site, crews have been mobilized, and the first holes are now being drilled—marking the beginning of a new phase of exploration for the Company.
Prime Positioning in a Major Mining District
The EP Gold Project is strategically situated within and adjacent to the extensive concession holdings of Fresnillo plc—the world's largest primary silver producer and Mexico's leading gold producer. Fresnillo's dominant land position in the district underscores the significance of the region and highlights the favourable geological setting in which Colibri operates.
Image 1: RC drilling rig arriving on site, EP Gold Project, Sonora, Mexico
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/4269/277265_8bbc8cbd04e46bfb_002full.jpg
About the Caborca Region
Sonora is one of Mexico's most productive and historically significant mining jurisdictions, with more than four centuries of continuous gold and silver production. The Caborca Gold Belt, in particular, is recognized for its robust mineral endowment, long mining history, and well-developed infrastructure that supports active exploration and mine development.
Regional Mining Environment
The Caborca Gold Belt hosts several producing mines and advanced exploration projects operated by some of Mexico's largest gold and silver companies such as Fresnillo plc at its La Herradura Mine, as well as established operators such as Southern Copper Corporation and Alamos Gold Inc., underscoring its significance as an active mining district. This long-established mining ecosystem provides strong logistical advantages, experienced labour, and a comprehensive support network for active exploration programs across the region, including Colibri's ongoing RC drilling campaign. Other public companies with exploration or development activities in the region include Osisko Development Corp., Minera Alamos Inc., and Aztec Minerals Corp., each of which maintains mineral projects within the broader Caborca area, reflecting the presence of ongoing mining and exploration activities in the district.
Image 2: Drill mast raised on first prepared pad, RC drilling underway
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/4269/277265_8bbc8cbd04e46bfb_005full.jpg
Management Commentary
"The start of drilling is an important catalyst for the Company as we build exploration momentum across the EP Gold Project," said Ian McGavney, President & CEO of Colibri Resource Corporation. "With drills turning, we have moved decisively into execution mode. Our team is energized, aligned, and committed to advancing the Project with focus and purpose. We appreciate the continued support of our shareholders and community partners as we enter this exciting chapter."
About Colibri Resource Corporation
Colibri Resource Corporation (TSXV: CBI) is a Canadian junior mining company engaged in the acquisition, exploration, and development of precious metal properties in Sonora, Mexico. The Company holds a
For more information on all Colibri projects, please visit:
www.colibriresource.com
ON BEHALF OF THE BOARD
Ian McGavney
President, CEO & Director
Tel: (506) 383-4274
Email: ianmcgavney@colibriresource.com
Notice Regarding Forward-Looking Statements
Neither TSX Venture Exchange nor its Regulation Services Provider accepts responsibility for the adequacy or accuracy of this release.
This news release may contain forward-looking statements. Although Colibri believes that such statements are reasonable, it can give no assurance that such expectations will prove to be correct. Forward-looking statements are typically identified by words such as "plan," "expect," "anticipate," "intend," "believe," or variations of such words, and include statements with respect to the potential of the EP Gold Project. Forward-looking statements are subject to risks, uncertainties and assumptions, and actual results could differ materially. Readers are cautioned not to place undue reliance on these forward-looking statements. The Company does not undertake any obligation to update forward-looking statements except as required by law.
To view the source version of this press release, please visit https://www.newsfilecorp.com/release/277265
FAQ
When did Colibri Resource (CRUCF) start drilling at the EP Gold Project?
What type of drilling is Colibri using at the EP Gold Project (CRUCF)?
How large is the EP Gold Project land package for Colibri (CRUCF)?
Where is Colibri's EP Gold Project located relative to Fresnillo holdings (CRUCF)?
Where can investors view images of the RC rig at the EP Gold Project (CRUCF)?
What is the significance of drilling at the EP Gold Project for Colibri (CRUCF)?
