Fireweed Intersects 4.76% Zinc, 0.43% Lead and 18.9 g/t Silver over 43.7 m in upper
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NEWS RELEASE
February 25th, 2021 TSXV: FWZ
Fireweed Intersects 4.76% Zinc, 0.43% Lead and 18.9 g/t Silver over 43.7 m in upper
sequence and 2.08% Zinc over 225 m in lower sequence at Boundary West
Vancouver, British Columbia: FIREWEED ZINC LTD. (“Fireweed”) (TSXV: FWZ) is pleased to
announce the final results from the 2020 drilling at Boundary Zone, Macmillan Pass Project in Yukon,
Canada. These results are from Boundary Zone West which was discovered in 2020 with a 360 metre step
out hole drilled on a gravity anomaly. It is located 15 road kilometres west of the Tom-Jason deposits (see
Map 1) and includes discovery of a new lower sequence hosted in older host rocks than other mineralization
found at Macmillan Pass. Boundary Zone has now been traced over a strike length of 630 metres, and both
upper and lower sequence mineralization remains open for expansion along strike and down dip.
Highlights
• Hole NB20-009 intersected a dense upper sequence of 4.76% zinc, 0.43% lead and 18.9 g/t silver
over 43.7 m including a high grade stratiform zone of 26.35% zinc, 5.21% lead and 53.4 g/t silver
over 2.19 m from a vertical depth of 40 m from surface.
• Hole NB20-009 also intersected a broad lower sequence of 2.08% zinc over 225.0 m including a
stratiform zone of 3.69% zinc over 19.0 m and a vein interval of 3.75% zinc over 50.00 m.
• This is the first discovery of zinc mineralization hosted by lower sequence Ordovician-Silurian
rocks in the district.
• Hole NB20-008 intersected the upper sequence of vein mineralization of 2.48% zi nc, 0.74% lead,
and 12.5 g/t silver over 111.17 m including two higher grade vein intervals of 6.07% zinc, 1.12%
lead, and 27.8 g/t silver over 13.95 m and 4.57% zinc, 0.62% lead, and 15.2 g/t silver over 17.0 m
Table 1: Highlight results from the upper and lower sequences at Boundary Zone West.
Drill Hole From
(m)
To
(m)
Intersection
(m)
Zinc
(%)
Lead
(%)
Silver
(g/t)
Bulk
Density
(t/m3)
Zone
NB20-008 194.83 306.00 111.17 2.48 0.74 12.5 3.37 Upp.V
> including 198.05 212.00 13.95 6.07 1.12 27.8 3.85 Upp.V
> and 242.35 259.38 17.03 4.57 0.62 15.2 3.53 Upp.V
NB20-009 40.30 84.00 43.70 4.76 0.43 18.9 3.64 Upp.
> including 40.30 42.49 2.19 26.35 5.21 53.4 3.85 Upp.T/J
>> including 41.40 42.49 1.09 44.80 8.33 77.6 3.81 Upp.T/J
NB20-009 181.00 406.00 225.00 2.08 0.09 5.3 2.97 Low.
> including 181.00 212.00 31.00 2.99 0.03 5.2 2.93 Low.HP
>> including 183.00 202.00 19.00 3.69 0.04 5.9 3.26 Low.HP
>>> including 183.00 188.00 5.00 9.69 0.06 10.4 2.98 Low.HP
> and 283.50 406.00 122.50 2.59 0.13 6.4 3.02 Low.V
>> including 283.50 385.00 101.50 2.84 0.15 7.1 3.06 Low.V
>>> including 315.00 365.00 50.00 3.75 0.12 5.6 3.08 Low.V
Upp. = Upper Sequence ; Low. = Lower Sequence ; V = Vein mineralization ; T/J = Tom /Jason style stratiform
laminated mineralization; HP = Howard’s Pass style stratiform zinc mineralization.
Averages are length and bulk density weighted.
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CEO Statement
Brandon Macdonald, CEO, stated “These first few holes into the new Boundary West discovery have shown
the near-surface upper sequence to have significant widths and grade , not just in the newly discovered
massive sulphide zone, but also within the barite-hosted stratiform mineralization which in NB20-009 has
shown grade potential rivalling the best of Tom & Jason . The lower sequence at Boundary West shows
similar grades to parts of central Boundary Zone over a 22 5 m intersection and the discovery of
mineralization in these older rocks hugely expands the exploration space for new discoveries across the
whole 940 km2 property. These initial intersections point to two distinct stratiform mineralized systems at
Boundary West that are each underlain by significant thicknesses of vein mineralization . Boundary West
remains open along strike and down dip , and may have continuity to central Boundary Zone to the east.
This suggests a massive size potential and a staggering metal endowment.”
NB20-009 and NB20-007 Drill Results
These assays complete the results for Fireweed’s new 2020 discovery, Boundary Zone West, approximately
360 m west of the central area of the known Boundary Zone mineralized system. Drill hole NB20-009 was
drilled on-section southwest of NB20-004 (Map 2), both targeting a ground-gravity high anomaly surveyed
earlier in the season. Both drill holes intersected an upper sequence comprising massive sulphides,
Boundary Zone-style vein-hosted and replacement-style mineralization, and stratiform, laminar zinc-lead-
silver mineralization similar to that seen at Tom and Jason. NB20-009 also intersected a lower sequence of
stratiform, laminar zinc mineralization in older host rocks which were previously not believed to host
mineralization in the Macmillan Pass district (Section 1). This lower sequence is hosted in Late Ordovician-
Early Silurian host rocks the same age as host rocks at Howard’s Pass, 90 km to the southeast. Its discovery
has significant implications for exploration and dramatically increases the area of prospective host rocks in
the district. Hole NB20-007 encountered drilling problems at 90 m depth and was re-drilled from the same
pad, as NB20-009, intersecting similar geology in the first 90 m.
NB20-008 Drill Results
Hole NB20-008 was drilled as a step-out hole 85 m west of pre-2020 drilling, between the previously known
core of mineralization at Boundary Zone and Boundary Zone West. Like NB20-004 and NB20-009, NB20-
008 targeted a ground gravity high anomaly. Sulphide mineralization included breccia and vein-hosted, and
replacement-style mineralization similar to mineralization seen in the core of the Boundary Zone system.
The true thickness of the stratiform mineralization cannot be accurately estimated yet owing to the variable
orientation of nearby oriented core bedding measurements and sparsity of drill holes. The true thickness of
the stratiform mineralization in holes NB20-009 and NB20-007 is estimated to be between 20% to 80% of
intersected thicknesses. True widths of individual cm - to m-scale veins intersect ed in NB20 -007, NB20-
008 and NB20-009 vary greatly from 20% to 95% of intersected thicknesses reflecting the stockwork nature
of the veins, and at this early stage of drilling the overall true thickness of Boundary Zone West cannot be
accurately estimated until further drilling is completed.
Boundary Zone Potential
There is no Mineral Resource for Boundary Zone yet and the zone is not included in the current mineral
resource estimate for the property (described in Fireweed news release dated January 10, 2018). Boundary
Zone has potential to be mined in an open pit with a low strip ratio and to be upgraded through low cost,
pre-concentration ore sorting processes (see Fireweed news release dated July 31, 2019). Recent drill results
at Boundary Zone along with Tom North Zone and End Zone (see Fireweed news releases dated August
20th and September 10 th, 2019; November 15th and 29th, 2018; January 26th, 2021) represent potential for
expansion of the large current mineral resources on the property and im provement of Macmillan Pass
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project economics described in the current Preliminary Economic Assessment (PEA) (see Fireweed news
release dated May 23rd, 2018).
Boundary Zone Background
Boundary Zone mineralization consists of sphalerite-siderite-pyrite and minor galena in veins, stockworks,
disseminations, and as replacement of matrix and clasts within coarse clastic rocks. Drilling in 2020 at
Boundary Zone West also identified stratiform mineralization similar to the Tom and Jason deposits (see
news release dated November 24th, 2020).
Historical exploration work at Boundary Zone included geochemical and geophysical surveys as well as 24
drill holes that defined a central 200 x 800 m mineralized zone of zinc ( -lead-silver) mineralization within
a broader system over 2 km in strike length. Historical length-weighted average intersections1 such as 224.0
m of 2.50% zinc and 0.30% lead, including 4.5 m of 16.40% zinc, are consistent with recent Fireweed
drilling and demonstrated potential for bulk tonnage open pit mineralization.
In 2019, Fireweed drilled two holes into the central part of the known Boundary Zone mineralization. Both
holes intersected wide zones of high -grade replacement -style and vein- and breccia-hos ted zinc
mineralization, including 100.0 m (true width) of 8.73% zinc from surface including 6.4 m of 43.53% zinc
within 230.0 m of 4.51% zinc (see Fireweed news releases dated November 5 th, 2019 and January 26th,
2021). In 2020 Fireweed drilled the discovery holes into the Boundary West Zone described in this news
release.
Notes on sampling, assaying, and data aggregation:
The diamond drill core logging and sampling program was carried out under a rigorous quality assurance /
quality control program using industry best practices. Drill intersections in this release are all HQ3 (split
tube) size core (61.1mm / 2.4-inch diameter) with recoveries typically above 85%. After drilling, core was
logged for geology, structure and geotechnical characteristics, marked for sampling, and photographed on
site. The cores for analyses were marked for sampling based on geological intervals with individual samples
1.5 m or less in length. Drill core from the Boundary Zone was cut lengthwise in half with a core saw; half-
core was sent for assays reported in this news release, and the other half is stored on site for reference. Bulk
density was determined on site for the entire length of each sample assayed by measurement of mass in air
and mass in water. Sample duplicate bulk density determinations and in -house bulk density standard
determinations were each made at a rate of 5%. Since 2017, four in -house bulk density standards
(mineralized drill core from the Tom deposit that span a range of densities) have been used and show an
acceptable long-term precision. Certified standard masses are used to calibrate the scale balance used for
bulk density determinations.
A total of 5% assay standards or blanks and 5% core duplicates are included in the sample stream as a
quality control measure and are reviewed after analyses are received. Standards and blanks in 2020 drill
results to date have been approved as acceptable. Duplicate data add to the long-term estimates of precision
for assay data on the project and precision for drill results reported is deemed to be within acceptable levels.
Samples were sent to the Bureau Veritas preparation laboratory in Whitehorse, Yukon, where the samples
were crushed and a 500 g split was sent to the Bureau Veritas laboratory in Vancouver, B.C to be pulverized
to 85% passing 200 mesh size pulps. Clean crush material was passed through the crusher and clean silica
was pulverized between each sample. The pulps were analyzed by 1:1:1 Aqua Regia digestion followed by
Inductively Coupled Plasma Mass Spectrometry (ICP -ES/ICP-MS) multi-element analyses (BV Code
AQ270). All samples were also analyzed for multiple elements by lithium borate fusion and X -ray
fluorescence analysis (XRF) finish (BV Code LF725). Over -limit Pb (>25.0%) and Zn (>24.0%) were
analyzed by lithium borate fusion with XRF finish (BV Code LF726). Silver is reported in this news release
by method AQ270, and zinc and lead are reported by LF725 or LF726. Bureau Veritas (Vancouver) is an
independent, international ISO/IEC 17025:2005 accredited laboratory.
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Results in this news release are length and bulk -density weighted averages as would be used in a Mineral
Resource estimate. Readers are cautioned that in Fireweed news releases in prior years, only length
weighted assay averages were reported which may result in slightly lower (under reported) average values.
Length and bulk-density weighted averages have been reported as these most accurately represent the
average metal-content of the intersections.
Qualified Person Statement
Technical information in this news release has been approved by Gilles Dessureau, P.Geo, Vice President
Exploration and a ‘Qualified Person’ as defined under Canadian National Instrument 43-101.
About Fireweed Zinc Ltd. (TSXV: FWZ): Fireweed Zinc is a public mineral exploration company
focused on zinc-lead-silver and managed by a veteran team of mining industry professionals. The Company
is advancing its district-scale 940 km2 Macmillan Pass Project in Yukon, Canada, which is host to the 100%
owned Tom and Jason zinc-lead-silver deposits with current Mineral Resources and a PEA economic study
(see Fireweed news releases dated January 10, 2018, and May 23, 2018, respectively, and reports filed on
www.sedar.com for details) as well as the Boundary Zone, Tom North Zone and End Zone which have
significant zinc-lead-silver mineralization drilled but not yet classified as mineral resources. The project
also includes large blocks of adjacent claims (MAC, MC, MP, Jerry, BR, NS, Oro, Sol, Ben, and Stump)
which cover exploration targets in the district where previous and recent work identified zinc, lead and
silver prospects, and geophysical and geochemical anomalies in prospective host geology.
Additional information about Fireweed Zinc and its Macmillan Pass Zinc Project including maps and drill
sections can be found on the Company’s website at www.FireweedZinc.com and at www.sedar.com.
ON BEHALF OF FIREWEED ZINC LTD.
“Brandon Macdonald”
CEO & Director
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the
policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.
Cautionary Statements
This news release may contain “forward -looking” statements and information relating to the Company and the
Macmillan Pass Project that are based on the beliefs of Company management, as well as assumptions made by and
information currently available to Company management. Such statements reflect the current risks, uncertainties and
assumptions related to certain factors including but not limited to, without limitations, exploration and development
risks, expenditure and financing requirements, general economic conditions, changes in financial markets, the ability
to properly and efficiently staff the Company’s operations, the sufficiency of working capital and funding for
continued operations, title matters, First Nations relations, operating hazards, politi cal and economic factors,
competitive factors, metal prices, relationships with vendors and strategic partners, governmental regulations and
oversight, permitting, seasonality and weather, technological change, industry practices, and one -time events.
Additional risks are set out in the Company’s prospectus dated May 9, 2017, and filed under the Company’s profile
on SEDAR at www.sedar.com. Should any one or more risks or uncertainties materialize or change, or should any
underlying assumptions prove incorrect, actual results and forward-looking statements may vary materially from those
described herein. The Company does not undertake to update forward‐ looking statements or forward‐ looking
information, except as required by law.
Footnotes:
1. Historic results for the Boundary Zone reported in this news release are taken from historic reports
prepared by previous operators. Neither the Company or the Qualified Person has done sufficient work to
verify these results and therefore these results should not be relied upon. The Company is including them
for information purposes to explain the basis for the exploration target and reasons for drilling.
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Map 1 – Macmillan Pass Project:
Locations of the 2020 exploration targets, advanced prospects, and known deposits.
Page 6 of 11
Map 2 – Boundary Zone:
Locations of the 2020 diamond drill holes and cross-section B-B’.
Page 7 of 11
Section 1: Boundary Zone West Cross-Section B-B’.
Page 8 of 11
Table 2: Full results from NB20-007.
Hole From
(m)
To
(m)
Intersection
(m)
Zinc
(%)
Lead
(%)
Silver
(g/t)
Bulk
Density
(t/m3)
Zone
NB20-007 37.00 72.00 35.00 3.90 0.30 14.6 3.20 Upp.
> including 37.00 53.00 16.00 6.96 0.54 20.7 3.30 Upp.
>> including 37.00 46.55 9.55 9.74 0.81 27.0 3.47 Upp.
>>> including 37.00 38.68 1.68 26.13 3.36 36.8 3.39 Upp.T/J
>>> and 43.60 46.55 2.95 12.94 0.41 47.3 4.26 Upp.V
>> and 51.00 53.00 2.00 6.14 0.09 14.4 3.07 Upp.V
Upp. = Upper Sequence.
V = Vein mineralization.
T/J = Tom/Jason style stratiform laminated mineralization.
Averages are length and bulk density weighted.
Table 3: Full results from NB20-008.
Hole From
(m)
To
(m)
Intersection
(m)
Zinc
(%)
Lead
(%)
Silver
(g/t)
Bulk
Density
(t/m3)
Zone
NB20-008 27.00 27.89 0.89 5.76 0.02 6.9 3.37 Vein
NB20-008 70.00 72.00 2.00 2.68 0.41 6.2 2.61 Vein
NB20-008 90.00 114.00 24.00 2.10 0.18 5.9 2.75 Vein
> including 100.00 114.00 14.00 3.08 0.30 8.8 2.78 Vein
>> including 108.00 110.09 2.09 11.33 0.02 15.3 2.93 Vein
NB20-008 148.00 149.50 1.50 3.76 0.09 4.1 2.81 Vein
NB20-008 194.83 306.00 111.17 2.48 0.74 12.5 3.37 Upp.V
> including 198.05 212.00 13.95 6.07 1.12 27.8 3.85 Upp.V
>> including 204.00 212.00 8.00 7.95 1.10 29.5 3.6575 Upp.V
> and 235.00 240.00 5.00 1.46 0.81 8.4 3.41 Upp.V
> and 242.35 259.38 17.03 4.57 0.62 15.2 3.53 Upp.V
> and 289.00 290.00 1.00 9.77 0.76 19.7 3.38 Upp.V
Upp. = Upper Sequence.
V = Vein mineralization.
Averages are length and bulk density weighted.