Mineralized outcrop on the Comstock property with a rock hammer for scale

Immediate exploration targets

First modern geophysics defines a major untested large-scale target at Original-Diane and South zones

Chargeability (red), resistivity (yellow), magnetic low (blue).

Three-dimensional view of the Original-Diane Prospect, South Zone, STG Zone and Victoria Adit — Original-Diane Prospect, South Zone, STG Zone and Victoria Adit in three dimensions.

Recent, comprehensive geophysical surveys revealed multiple previously unrecognized magnetic and induced polarization (IP) anomalies previously unknown at the time of the 1988 drill program
2023 airborne survey outlined magnetic low and suspected hydrothermal alteration zone within a broader ~5 km magnetic high belt
2020 IP survey identified robust chargeability anomaly exceeding 400 m in strike length beneath Original-Diane and South zones and remains open to the southwest

Original Diane Zone

Highly-mineralized Au-Ag-Cu zone with surface sampling highlights reaching 27.19% Cu, 56.71 gpt Au
Location of the 1988 9-hole shallow drill program that delivered encouraging Copper & Gold intercepts
The 1988 drill program intersected fractured, mineralized zones characterized by quartz and silicified volcanics, with widespread limonite boxwork and patchy pyrite overprinting chloritic volcanics containing specular hematite [1]
North Valley interprets these veins as potentially forming within the lithocap of an underlying mineralized porphyry system

South Zone

~200 m south of the Original Diane target
Further extension of IP chargeability anomaly
Never drill tested
Historic trench sampling returned encouraging copper grades of 0.45% Cu over 2 m and 0.20% Cu over 7 m [2]

Three-dimensional chargeability, resistivity and magnetic low shells viewed to the east — Chargeability (red), resistivity (yellow) and magnetic low (blue) — view east.

Three-dimensional chargeability, resistivity and magnetic low shells viewed to the west — Chargeability (red), resistivity (yellow) and magnetic low (blue) — view west.

Three-dimensional chargeability, resistivity and magnetic low shells viewed to the north — Chargeability (red), resistivity (yellow) and magnetic low (blue) — view north.

Chargeability cross-section A to A prime showing an untested drill target below 200 metres — Section A–A′ looking northwest — untested drill target below 200 m, where historic drilling ended in elevated chargeability.

1988 Original-Diane historical drilling vs modern geophysical anomalies

1988 historic drill collar locations at the Original-Diane zone with underlying IP geophysical survey completed in 2020. Modern geophysical data outlines a significant chargeability anomaly exists below historic drilling that remains open to the southwest and southeast. The Lowell zone and Victoria Adit occur along the edges of a magnetic anomaly, which may correspond to the intrusion that drove mineralization. Cross-section demonstrates the close relationship between mineralization and elevated chargeability. It is interpreted that the 1988 historic drilling may have intersected the outer propylitic/phyllic zone of an underlying porphyry system. The higher chargeability may be outlining the core of a porphyry system and represents a compelling, near-surface target for future drill programs.

Size potential — fertile porphyry signature

Alteration at Diane-Original defines the system margins. Historic drilling on these edges returned up to 0.53% Cu and 0.36 g/t Au over 12.8 m
Peak thermal maturity aligns with large chargeability anomalies, evidence of a near-surface, large mineralized system
Comstock and Trench D exhibit pervasive muscovite (phyllic) alteration characteristic of proximity to a porphyry core
Overlapping datasets define a largely untested mineralized system with multiple priority targets

Sources

1. Nelles, D.M. — Diamond Drilling Report on the Stirling Group (Diane 1-5 Mineral Claims) for Abermin Corporation. July 20, 1988. AR 17721.
2. Cavey, G. et al. 1986. Report on Detailed Geological, Geochemical, and Geophysical Surveys for International Maple Leaf Resource Corporation on the Stirling Group (Diane 1-5 Mineral Claims). BC Geological Survey Assessment Report.