Constantine’s flagship Palmer Zinc (Cu, Au, Ag) is located in Southeast Alaska, USA - a proven and profitable mining jurisdiction, historically productive and currently, highly prospective.

The Alaska Palmer project is located approximately 8 km (5 miles) off the Alaska Highway between Haines Junction and the deep-water port of Haines, Alaska. Approaching from the Canadian side, the project is 355 km (220 miles) from Whitehorse, Yukon along the Alaska Highway. This project is fully accessible by paved road with services such as gas stations, rest stops and restaurants. Constantine maintains a regional office in Haines, a community with a population of 1,863 (2020) located 60 km to the south of the Palmer project.

A Preliminary Economic Assessment was completed on the Palmer project in June 2019 (and filed July 18, 2019 on, which presents a low capex, low operating cost, high margin underground mining operation with attractive environmental attributes.


(Copper-Zinc) Alaska

  • Volcanogenic massive sulphide (VMS) deposit located within the same belt of rocks that is host to the Greens Creek and Windy Craggy VMS deposits
  • Significantly expanded and upgraded mineral resource estimate for the Palmer Deposit 4.7MT Indicated @ 10.2% Zn.Eq. and 5.3MT Inferred @ 8.7% Zn.Eq. in addition to the maiden AG Zone Deposit resource estimate: 4.3MT Inferred @ 9.0% Zn.Eq.
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Big Nugget

(Gold) Alaska

  • High grade gold quartz vein system located immediately upstream of the historic and present day Porcupine camp gold placer operations (+80,000 ounces gold).
  • 2020 field program confirmed the in-place gold mineralization and geological setting of a source area for the Porcupine placer deposits and has identified attractive drill targets.
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