Macpass Project

Yukon, Canada

The Macpass Project is one of the largest undeveloped zinc projects in the world.


The Macpass Project, located in southeast Yukon approximately 200 km from Ross River near the border of the Northwest Territories, is in the traditional territories of the Kaska Dena Nation and the First Nation of Na-cho Nyäk Dun. The Project is host to large zinc-lead-silver deposits within a district-scale 940 km2 area, and can be accessed via the Macmillan Pass aerodrome and the North Canol Road. Fireweed continues to explore and define areas of mineralization and undertake technical and environmental baseline studies in support of project assessment and permitting for mine development and operation.
Since the company’s inception in 2017, Fireweed acquired and consolidated numerous claim blocks to comprise the Macpass Project area. The area includes four known large zinc mineralized systems including the Tom and Jason zinc-lead-silver deposits (with current mineral resources and a preliminary economic assessment), as well as Boundary Zone, Tom North Zone and End Zone that have significant zinc-lead-silver mineralization. Other targets with known showings and significant upside exploration potential are located along the prospective mineralized corridor which spans the project area.

Tom and Jason are high-grade zinc-lead-silver deposits with 2018 resource estimates. An existing camp, road access and a government airstrip are already in place.

11.21 Mt Indicated @ 9.61% ZnEq (6.59% Zinc, 2.48% Lead, 21.33 g/t Silver)

39.47 Mt Inferred @ 10.00% ZnEq (5.84% Zinc, 3.14% Lead, 38.15 g/t Silver)

Boundary Zone is an advanced prospect with more than 32,000 m of drilling between approximately 100 holes. There are no current Mineral Resources defined at Boundary Zone.

High grade zinc-lead-silver mineralization is present in a steeply dipping laminated to massive sulphide stratiform zone, surrounded by a halo of vein and breccia mineralization that extends 100 to 150 m on either side.

End Zone is host to high-grade zinc-lead-silver mineralization.

In 2018, drilling at End Zone intersected high grades including 11.08 m of 4.78% Zinc, 10.17% Lead, 87g/t Silver.


Current Mineral Resources include only the Tom and Jason deposits.
* References to relative size and grade of the Mactung resources and Macpass resources in comparison to other tungsten and zinc deposits elsewhere in the world, respectively, are based on review of the Standard & Poor’s Global Market Intelligence Capital IQ database.

For details, see Fireweed Technical Report titled “NI 43-101 Technical Report Macmillan Pass Project Yukon Territory Canada” filed on on July 9, 2018, and Fireweed News Release dated May 23, 2018. This Technical Report includes a Preliminary Economic Analysis disclosing an economic analysis of mineral resources that is preliminary in nature and does not include any mineral reserves. It is equally emphasized that the mineral resources disclosed within this Technical Report are not mineral reserves and do not have demonstrated economic viability.


Fireweed Advances Boundary Zone, Intersecting 57.4 m of 8.4% Zinc, 1.8% Lead, and 51.8 g/t Silver, and 49.9 m of 10.1% Zinc, and 14.4 g/t Silver

Fireweed Intersects 81.3 m of 8.5% Zinc, 1.1% Lead, and 47.0 g/t Silver, Including 12.4 m of 17.2% Zinc, 2.0% Lead, and 79.1 g/t Silver at Boundary Zone

Fireweed Intersects 118.0 m of 15.1% Zinc, 2.8% Lead, and 85.8 g/t Silver and also 82.5 m of 11.9% Zinc, 2.2% Lead and 81.2 g/t Silver: Multiple Zones of High-Grade Mineralization In Single Drillhole

Fireweed Connects Boundary Main and Boundary West with a High-Grade Feeder Zone, intersecting 71.9 m of 6.5 % Zinc 3.1% Lead and 97.8 g/t Silver



Macpass 43-101 Resource Report


2018 Macpass NI 43-101 Preliminary Economic Assessment