Trailbreaker Resources Ltd. (TBK.V) has mobilized a field team to its Coho property in central British Columbia to initiate a surface exploration program, setting the stage for a September 2026 drill campaign. The program focuses on two key areas: reconnaissance exploration along the property's western boundary, known as the Masu zone, and ground-truthing of drill hole locations at the Coho zone, a copper-gold (Cu-Au) porphyry target.
CEO Daithi Mac Gearailt said the Coho Cu-Au porphyry target represents a compelling opportunity. “Our field team is on the ground now, ground-truthing drill locations and systematically sampling territory that has had very little historic exploration,” he said. The company believes this is shaping up to be an exciting period for Trailbreaker and its shareholders.
The 8,000-hectare Coho property is located 90 km north of Fort St. James, BC, and 30 km west of Centerra Gold’s Mount Milligan Cu-Au porphyry deposit, a producing mine with reserves of 1.7 billion pounds of copper and 4.3 million ounces of gold (470,332 kt grading 0.17% Cu and 0.28 g/t Au), according to the Centerra Gold website.
The surface exploration at the Masu zone follows up on results released by Pacific Empire Minerals (PEMC) in January 2026 on the contiguous Trident property. Drilling at Trident’s ‘A zone’ returned 240.0 meters grading 0.64% Cu, 0.41 g/t Au, and 2.8 g/t Ag, as detailed in PEMC’s January 21, 2026 news release. The Masu zone is situated 3.3 km east of the A zone, making it a strategic target for exploration.
On May 25, 2026, Trailbreaker announced plans to drill the Coho zone, the property’s primary target, with an inaugural diamond drill program scheduled for September. The Coho zone is a Cu-Au porphyry target with recently completed property-wide geochemical and geophysical surveys. It hosts a coincident chargeability and resistivity anomaly associated with high-grade gold and copper values from surface rock grab samples. Concurrent with Masu zone work, geologists will ground-truth proposed drill locations at the Coho zone and perform further geological mapping.
The Coho property is located within the Quesnel tectonic terrane, a district known for prolific alkalic Cu-Au porphyry deposits. To the north lies Pacific Ridge Resources’ Chuchi property, where 2024 drilling returned 382.0 meters grading 0.19% Cu, 0.12 g/t Au, and 0.47 g/t Ag from the BP zone, as reported in Pacific Ridge’s November 25, 2024 news release.
The Coho zone is defined by a 650 m x 550 m Cu-Au-Ag surface rock and soil geochemical anomaly within diorite, spatially associated with an ENE-trending fault zone and gabbro dykes. Historic surface grab samples returned values up to 16.15 g/t Au, 16.35% Cu, and 67.3 g/t Ag. A 2022 airborne ZTEM survey and a 2023 ground IP survey identified an interpreted 400 m x 250 m x 200 m-deep porphyry intrusive complex with a two-limbed IP chargeability high anomaly spanning more than 1.4 km.
Alkalic porphyry deposits commonly occur in clusters, and Trailbreaker’s team believes the Coho property may represent a Cu-Au porphyry system similar to surrounding deposits. The company interprets this system as part of a cluster along the margin of the Hogem batholith.
