Trailbreaker Resources Ltd. announced the commencement of the 2024 surficial exploration program at Castle Rock property on northern Vancouver Island, British Columbia (BC). During 2023, a 3 km gold-in-soil geochemical anomaly was defined along a magnetic lineament. This anomaly includes the Heart zone (historic chip sample of 2.0 g/t Au [gold] over 30 metres1) as well as the newly discovered Kokummi and Watchtower zones.

Interpretation of airborne magnetic data indicates that mineralization is associated with northwest-trending structures splaying off from the Kokummi granodioritic stock in the southwest property area. This interpretation suggests that much of the property with mineral potential has not yet been explored. The 2024 exploration program will consist of approximately 400 soil geochemical samples combined with prospecting of the Watchtower and Kokummi zones, in an effort to expand and define the geochemical signature.

Reconnaissance exploration will also be conducted on unexplored ground along trend to the northwest, as well as on the Flan zone. The Flan zone includes a historic showing that has returned assays of up to 135 g/t Au in boulders2. Exploration in 2023 confirmed high-grade gold mineralization, with assays up to 42.1 g/t Au and 1.93% Cu (copper).

As well, basalt-hosted semi-massive pyrite-chalcopyrite-pyrrhotite mineralization sampled in outcrop returned assays up to 3.1 g/t Au. It is believed that this outcrop-hosted mineralization is associated with the float samples, and that higher-grade material is likely not exposed due to vegetation and/or till cover. The Castle Rock property covers 3,108 hectares of land on northern Vancouver Island, approximately 70 km northwest of Campbell River, BC.

It was acquired by Trailbreaker in 2022 and consolidated through an option agreement (see August 8, 2023 news release). Trailbreaker conducted initial exploration assessment work in 2022 and followed up with a second surface exploration program in 2023. The claims cover five BC Minfile occurrences located along a district-scale structure that is >5 km-long, with newly identified gold ± copper-enriched intrusions.

These Minfile occurrences represent relatively new discoveries, mostly due to access created by recent logging activity. Northern Vancouver Island is host to several large Cu-Au porphyry deposits including Northisle Copper and Gold?s Hushamu deposit (Inferred resource of 5.57 Moz AuEq)3, and BHP Billiton?s past producing Island Copper porphyry copper deposit (produced >2.7 B lb Cu and >1.0 Moz Au). At the Castle Rock property, gold is dominantly hosted by Jurassic granodiorite dykes which have been emplaced along a regional-scale fault zone separating Lower to Middle Triassic Daonella Bed sedimentary rocks from Upper Triassic Karmutsen Formation basalts.