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Fireweed Zinc Starts Drilling Operations at Macmillan Pass in Yukon, Canada

Fireweed Zinc Ltd. has reported the commencement of drilling at its wholly-owned Macmillan Pass Zinc-Lead-Silver Project covering 544 km2 and located in Yukon, Canada.

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

This drill program is in addition to the ongoing fieldwork on the property from July 2020, which includes geological, geochemical, and geophysical work.


  • Two core drills have started drilling at the Boundary Zone
  • This season, the majority of the drilling will be performed at Boundary Zone, further testing the extensive and high-grade mineralization intersected in 2019
  • Drilling on new discovery targets have also been planned, such as the 240 Mile Target
  • Geochemical sampling, geological mapping, geophysical gravity surveying, prospecting are all in progress
  • An aerial VTEM-Magnetic geophysical survey over the western Fertile Corridor, which includes the Boundary Zone area, has been planned to begin soon
  • Fieldwork and drilling programs are being further widened with financial support from the recently declared funding

CEO Statement

Two drills are now turning. The prime target this season is 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, the best holes ever drilled in the zone.

Brandon Macdonald, CEO, Fireweed Zinc Ltd

Macdonald continued, “We will also be drilling new targets based on geophysics and other field work which have good potential for new discoveries. It’s going to be a busy couple months to accomplish the large work program we have planned and we look forward to seeing the results of our efforts.”

Core Drilling

The first drill started its drilling operations last week, and the second drill commenced its operations this week. Both drills will mostly be deployed to test the zone extensions and high-grade core at the Boundary Zone.

Prior drilling at Boundary identified wide portions of potential open pit mineralization. Drilling highlights from 2019 include 100 m of 7.94% zinc from the surface, which includes 6.4 m of 42.88% zinc within 230 m of 4.14% zinc.

Fireweed has scheduled to drill other targets this summer, such as the Bog Zone, which has considerable historic drill results and is situated to the north of Boundary Zone, and the 240 Mile Target, which hosts a huge gravity anomaly that might denote buried mineralization between the Jason and Tom deposits.


Ground gravity crews have been continuously surveying the western part of the Fertile Corridor, which includes the Boundary Zone area. Boundary Zone is a prospectively huge mineralized “feeder” system to adjacent unexplored stratiform mineralization, analogous to stratiform mineralization at the huge Tom and Jason deposits.

Mineralization has been marked by gravity anomalies at Tom and Jason, as well as other mineralization in the Fertile Corridor.

An aerial VTEM-Magnetics geophysics survey covering 1,300 line-kilometers is slated to begin soon. It will cover the western part of the Fertile Corridor, including the Zinc Moss Target, Volcanic Target, and the Boundary Zone. The findings of the survey will be utilized to guide exploration targeting as well as work programs.

Field Exploration

Prospecting, geochemical sampling, and geological mapping are in progress to identify drill targets at Round Mountain Target, Eleven Target, Zinc Moss Target, and Volcanic Target.


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