Hopper Project
- High grade discoveries within a multifaceted hydrothermal system
- Road-accessible and permitted for a large drill program; the Hopper Project lies 22 km north of the Otter Falls hydroelectric generator and only 320 km from the deep sea port of Haines, Alaska
- Significant porphyry copper mineralization over a 2.3 km by 650 m area is largely untested by drilling; gold-enriched skarn mineralization remains open along strike and down-dip in multiple horizons
- 2022 drill results of 1.87% copper and 1.04 g/t gold over 15.27 m from the Copper Castle skarn target and 0.22% copper over 114.38 m from the Hopkins North porphyry target
The Hopper property hosts copper-gold skarn and porphyry mineralization in southwestern Yukon Territory. This 74 sq km road accessible property is located 22 km north of the Otter Falls hydroelectric generator within the Traditional Territory of the Champagne & Aishihik First Nation.
The property lies within the Yukon-Tanana Terrane. The oldest rocks in the area comprise Devonian to Mississippian quartz-biotite±muscovite schists, which are intercalated with lesser biotite-bearing quartzite and banded marble. This package is intruded by a Late Cretaceous (76.0±1.1 and 83.7±1.9 Ma) granodiorite pluton, which is informally called the Hopper Pluton. The age of the Hopper Pluton places it in the same metallogenic episode as the Patton Porphyry, which is the mineralizing pluton at Western Copper and Gold Corporation’s Casino porphyry copper-gold-silver-molybdenum deposit located 190 km to the north-northwest. The Casino deposit contains 8.9 million ounces and 4.5 billion pounds in proven and probable ore reserves (mill reserves of 965.2 million tonnes grading 0.204% Cu, 0.240 g/t Au and 0.0227% Mo and heap leach reserves of 157.4 million tonnes grading 0.036% Cu and 0.292 g/t Au).
The mineralized hydrothermal system is centered on a porphyry-style copper zone that is flanked by stacked skarn horizons and distal veins. Historical work within the porphyry zone consisted of mechanized trenching and a number of widely spaced, very short percussion drill holes. The best results from this work were 0.52% copper over 45.72 m (trench) and 0.24% copper over 39.62 m (entire length of percussion drill hole). In 2015, a diamond drill hole targeting a chargeability anomaly which straddles the northern contact of the Hopper pluton yielded an interval that averaged 0.17% copper over 162.85 m. There are many other untested chargeability anomalies within and adjacent to the Hopper Pluton.
Prior to 2015, all diamond drilling on the property was done near a copper-rich skarn zone that outcrops in a creek bed, about 1,000 m southwest of the Hopper Pluton. Most of the historical holes were short and many of them were not analyzed for gold. Recent geochemical surveys outlined very strong copper, gold and molybdenum soil anomalies that cover a 3,600 by 2,500 m area. Only a small fraction of these anomalies have been tested by diamond drilling.
For more information please see the Hopper Property Technical Report filed on SEDAR December 11, 2025

