Flagship Project

Caledonia Brook

A 100%-owned gold and critical metals exploration project located along one of Newfoundland’s major gold-bearing structural trends.

Newfoundland, Canada

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Project Overview

Caledonia Brook Gold Project

The Caledonia Brook property is Triple One Metals’ flagship Newfoundland exploration project, targeting gold and critical metal opportunities within the Valentine Lake Structural Trend.

The property hosts mesothermal lode gold mineralization and shares geological characteristics with other significant gold systems in the region.

Regional geological map showing Caledonia Brook in relation to the Valentine Lake, Golden Rose, Cape Ray, Wilding Lake, Queensway and Moosehead projects — Regional geological context for the Caledonia Brook Gold Project.

100%Ownership

NewfoundlandCanada

Gold + Critical MetalsExploration Focus

Valentine Lake TrendRegional Setting

Newfoundland regional project map showing the location of the Caledonia Brook Gold Project — Caledonia Brook within Newfoundland’s regional gold-bearing trends.

Location & Geology

Positioned Along a Major Gold-Bearing Trend

The Caledonia Brook property lies along the Valentine Lake Structural Trend, which hosts significant gold mineralization elsewhere in Newfoundland.

According to the project presentation, the property shares several geological characteristics with the Valentine Lake system.

Plutonic Rocks

Similar regional intrusive geology.

Shear Zone System

Multiple structural corridors associated with mineralization.

Alteration

Altered rocks indicate large fluid systems associated with gold deposition.

Multiple Shear Zones

Several prospective structural zones occur across the property.

Exploration Highlights

Evidence Supporting Continued Exploration

Geochemical Programs

Soil, till and rock geochemistry programs have helped identify priority areas for continued exploration.

Coincident Anomalies

Multiple overlapping anomalous zones have been identified through successive exploration programs.

Visible Gold

Visible gold has been observed in vein assay material and glacial till samples.

Alteration & Mineralization

Extensive alteration and geological similarities support continued evaluation of the property’s mineral potential.

Project Area

Caledonia Brook Exploration Area

Caledonia Brook project area and interpreted target zones within the regional geological setting.

Caledonia Brook project map showing priority drill targets and interpreted geological features — Priority drill targets and interpreted geological features within the Caledonia Brook project area.

Visible gold grain recovered from glacial till at Caledonia Brook

Field Observations

Gold Mineralization & Field Evidence

Exploration work at Caledonia Brook has identified visible gold and gold mineralized rock samples that support continued geological investigation across the property.

Project Presentation

Explore the Full Caledonia Brook Presentation

Review the December 2025 Triple One Metals project presentation for additional maps, geological context, exploration results and corporate information.

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December 2025 CSE: TONE