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Fireweed Accelerates Exploration Work at Macmillan Pass Zinc Project in Yukon

Fireweed Zinc Ltd has reported ramp-up of exploration work at the Macmillan Pass Zinc Project located in Yukon, Canada.

Macmillan Pass Project: Locations of the 2020 exploration targets, advanced prospects, and known deposits. Image Credit: Fireweed Zinc Ltd.


  • The initial core drill is slated to be on-site next week, and a second one will arrive soon after that.
  • Majority of the drilling will be performed at Boundary Zone, which will further test the extensive, high-grade mineralization found in 2019.
  • In addition, new discovery targets will be drilled, which include a 240 Mile Target
  • Geological mapping, geochemical sampling, and prospecting are in progress at the Boundary Zone area and the 240 Mile Target.
  • Ground gravity survey has commenced in the Fertile Corridor to the west of earlier surveys, such as the area around Boundary Zone.
  • An airborne VTEM-Magnetic geophysical survey over the western Fertile Corridor, which includes the Boundary Zone area, has also been planned to commence soon.

CEO Statement

Our recent financing has allowed us to mount a big exploration program this summer that will run late into the season. We will be using two drills to step up the exploration of the Boundary Zone where last year we drilled very impressive intersections including 100 metres of 7.94% zinc from surface including 6.4 metres of 42.88% zinc.

Brandon Macdonald, CEO, Fireweed Zinc Ltd

Macdonald added, “Our field crews have already been hard at work exploring other targets that we may also drill test in search of new discoveries. The next couple of months promises to be a busy and exciting time for the project.”

Core Drilling

Two drills will reach the site soon and will mostly be deployed to test the high-grade Boundary Zone core and zone extensions. Earlier drilling work at Boundary found broad sections of potential open-pit mineralization. The highlights of drilling from 2019 include 100 m of 7.94% zinc from the surface, which consists of 6.4 m of 42.88% zinc within 230 m of 4.14% zinc.

The other targets scheduled to be drilled this summer are the Bog Zone, which has yielded considerable historic drill results and is situated near Boundary Zone, and the 240 Mile Target, which hosts a huge gravity anomaly that may show buried mineralization between the Tom and Jason deposits.


At present, ground gravity crews are performing surveys of the western part of the Fertile Corridor, which includes the Boundary Zone area. The Boundary Zone is a prospective, huge mineralized “feeder” system for adjacent unexplored stratiform mineralization analogous to that of the stratiform mineralization at the large Tom and Jason deposits. Mineralization at the Tom and Jason deposits and other mineralization in the Fertile Corridor are marked by gravity anomalies.

Contracts have been awarded to start a 1,300 line-kilometer airborne VTEM-Magnetics geophysics survey in the forthcoming weeks. This survey will cover the western part of the Fertile Corridor, which includes the Zinc Moss Target, Volcanic Target, and Boundary Zone. The findings of the survey will be utilized to guide exploration targeting as well as work programs.

Field Exploration

Geological mapping, geochemical sampling, and prospecting have been in progress to determine drill targets at Round Mountain Target, Eleven Target, Zinc Moss Target, and Volcanic Target.


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