Bonterra Intersects 1.8 g/t Au over 23.2 m and 2.5 g/t Au over 10.5 m at the Barry Open Pit Project and Provides Operational Update
2872 Sullivan Road, Suite 2
Val‐d’Or, Quebec
Office: (819) 825‐8678
Bonterra Intersects 1.8 g/t Au over 23.2 m and 2.5 g/t Au over 10.5 m
at the Barry Open Pit Project and Provides Operational Update
Val-d’Or, QC – September 7, 2022 – Bonterra Resources Inc. (TSX-V: BTR, OTCQX:
BONXF, FSE: 9BR2) (“Bonterra” or the “Company”) is pleased to announce results from the
drilling campaign at the Barry open pit project. The Company j ust completed a 25,000 metres
(“m”) definition drill campaign su rrounding the near surface miner alization at the Barry gold
deposit to further define extensions of the mineral resources. Today’s results obtained from 54
drill holes are expected to be included in a new mineral resource estimate (“MRE”) in preparation
of the pre-feasibility study (“ PFS”) expected to be completed later this year. The Company has
selected a group of experienced consultants, including BBA (BBA.ca) as lead consultant, and the
PFS is now underway.
Bonterra is also pleased to announce that is has commenced 125, 000 m of infill drilling on the
underground portion of the Barry deposit, which contains 0.5 mi llion ounces of Measured and
Indicated Mineral resources and 0.7 million ounces of Inferred Mineral resources, as stated in the
2021 MRE (“2021 MRE”). The Company continues to execute on its strategy of moving toward
the production re-start of the ope n pit at Barry while developi ng the higher-grade underground
mineralization in parallel.
The Company is currently drilling at a rate of approximately 6,000 m per month, focused on infill
drilling the underground portion of the Barry deposit highlighted within the 2021 MRE.
Highlights include:
1.8 g/t Au over 23.2 m, including 3.0 g/t Au over 4.0 m and 11.4 g/t Au over 1.5 m in hole
MB-22-434
2.5 g/t Au over 10.5, m including 7.3 g/t Au over 1.6 m in hole MB-22-452
1.0 g/t Au over 37.0, m including 3.2 g/t Au over 8.6 m in hole MB-22-470
1.8 g/t Au over 15.5, m including 11.2 g/t Au over 1.0 m in hole MB-22-458
6.3 g/t Au over 4.1, m including 27.2 g/t Au over 0.7 m in hole MB-22-495
5.9 g/t Au over 6.6, m including 20.1 g/t Au over 1.2 m in hole MB-22-460
Operational Updates
The Company also announces that is has elected to put the under ground infrastructure at the
Bachelor-Moroy deposit under long -term care and ma intenance and expects to complete this
process early in the fourth quarter. This decision was made after a detailed analysis of the economic
potential of the Moroy deposit, considering the costs involved in maintaining the underground
infrastructure de-watered and in good standing. It is important to note, that the status of the assay
lab, camp, mill, and the tailings management area (the “ Bachelor Mill Complex ”) remains
unchanged, and that these assets are key components of the plan ned re-start of production at the
Barry open pit project.
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At the Bachelor Mill Complex, the permitting process for the mill and tailings management area
expansion is still ongoing at the COMEX. Considering the abovem entioned changes at the
Bachelor-Moroy deposit, a scope change will be submitted shortly to the COMEX for their review.
At the Gladiator deposit, the Company has undertaken an explora tion drill campaign on barges
that was completed as scheduled at the end of July. The geological team at Bonterra will continue
working on the mineral resources model and geological interpretation of the deposit as drill results
from the campaign become available. The team is also planning a more focused drill program for
next year.
Marc André Pelletier, President and CEO commented: “These recent drill results confirm the grade
continuity of the near surface mineralization at the Barry deposit and will be used to further refine
our geological model as part of the PFS that is expected to be completed by year end. The PFS is
an important milestone in our ren ewed strategy of advancing the Company toward production,
starting with the Barry open pit.
Bonterra expects that the decision to place the underground inf rastructure at the Bachelor-Moroy
deposit on long-term care and maintenance will reduce the annua l maintenance costs by at least
$3 million/year and will allow the Company to reallocate these financial resources toward
advancing the development of the Barry deposit.”
Figure 1 – Barry Project - Drill Hole Location Map, Plan View.
The infill drilling program was designed to fill gaps in the dr ill spacing inside and immediately
around the pit shell from the 2021 MRE. The results confirmed the shape of the mineralization and
the grades predicted by the bloc model from the 2021 MRE. Hole MB-22-434 returned
1.8 g/t Au over 23.2 m in zone D4 in the south-west pit (fig. 2 ), hole MB-22-470 returned
1.0 g/t Au over 37.0 m, including 3.2 g/t Au over 8.6 m from zo ne AB07 in the main pit (fig. 3)
and hole MB-22-452 returned 2.5 g/t Au over 10.5 m just 10 m un der the main pit in zone AB07
(fig. 4).
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Figure 2 – Barry Project - Cross Section 30m, southwest pit (Ho le MB-22-434, MB-22-436,
MB-22-505, MB-22-495, MB-22-434), Looking southwest.
Figure 3 – Barry Project – Cross Section 25m, Main Pit, (Hole MB-22-470, MB-22-469, MB-22-463),
Looking southwest.
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Figure 4 – Barry Project – Cross Section 25m, Main Pit, Hole (MB-22-452), Looking southwest.
The expansion drilling program was aimed to better define the mineral resources surrounding the
2021 MRE. Hole MB-22-458 returned 1.8 g/t Au over 15.5 m and Ho le MB-22-460 returned
5.9 g/t Au over 6.6 m in zone H6, 35 m below the surface and 45 m to the west of the southwest
pit (fig. 5).
Figure 5 – Barry Project – Cross Section 25 m, southwest pit ex tension, (Hole BA-22-458,
MB-22-460), Looking southwest.
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Barry Deposit Geology
The Barry gold deposit is characterized by three dominant sets of structures, all dipping to the
southeast. The sub-vertical shear zones and the H-Series shear zones dipping 25 to 40 degrees are
hosted within intermediate to mafic volcanics and tuffs with local felsic intrusions. Contact zones
dip at 50-65 degrees along the lower and upper contacts of the D1, D2 and D3 felsic intrusions
with mafic volcanics. Gold mineralization is associated with di sseminated sulfides within shear
zones and veins with local visible gold. The Barry deposit has been delineated over 1.4 kilometres
along strike and 700 m vertical and remains open for expansion.
The following table shows the significant intersections of the drill holes presented in this press
release.
Program Hole ID From
(m)
To
(m)
Length
(m)
Grade
(g/t Au) Zones
Pit extension NE MB-21-415 104.2 122.5 18.3 0.5 Intrusion D3
Pit extension NE MB-22-424 15.9 18.7 2.8 2.3 AB08
Pit extension NE MB-22-424 23.0 50.5 27.5 0.6 Intrusion D3
Pit Infill MB-22-430 44.8 61.2 16.4 1.8 802
Pit Infill MB-22-430 Including 44.8 50.4 5.6 3.8 802
Pit Infill MB-22-430 84.0 84.6 0.6 9.0 New H
Pit Infill MB-22-430 103.6 107.7 4.1 2.0 800
Pit Infill MB-22-430 Including 105.2 106.5 1.3 5.2 800
Pit Infill MB-22-430 172.1 173.8 1.7 4.1 New H
Pit Infill MB-22-430 Including 172.1 172.6 0.5 11.8 New H
Pit Infill MB-22-432 110.9 122.3 11.4 0.9 Intrusion D2
Pit Infill MB-22-433 37.7 40.5 2.8 2.2 New H
Pit Infill MB-22-433 52.0 60.2 8.2 0.7 AB15
Pit Infill MB-22-434 49.5 72.7 23.2 1.8 D4
Pit Infill MB-22-434 Including 49.5 53.5 4.0 3.0 D4
Pit Infill MB-22-434
And
Including 61.8 63.3 1.5 11.4 D4
Pit Infill MB-22-434 81.0 104.2 23.2 1.2 Intrusion D2
Pit Infill MB-22-434 Including 94.0 95.1 1.1 8.3 Intrusion D2
Pit Infill MB-22-434
And
Including 97.5 98.3 0.8 14.8 Intrusion D2
Pit Infill MB-22-434 111.6 132.2 20.6 0.9 D2
Pit Infill MB-22-434 Including 113.7 114.3 0.6 10.6 D2
Pit Infill MB-22-435 97.8 99.5 1.7 3.0 AB17
Pit Infill MB-22-435 121.0 131.3 10.3 1.2 AB23
Pit Infill MB-22-435 Including 130.0 130.5 0.5 11.2 AB23
Pit Infill MB-22-436 19.2 31.0 11.8 1.5 H17
Pit Infill MB-22-436 Including 26.3 29.8 3.5 2.9 H17
Pit Infill MB-22-436 41.0 96.7 55.7 0.5 Intrusion D2 / D2
Pit Infill MB-22-436 Including 95.5 96.7 1.2 8.2 Intrusion D2 / D2
Pit Infill MB-22-437 6.6 18.0 11.4 0.5 D4
Pit Infill MB-22-438 42.6 56.6 14.0 1.3 AB14/800
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Program Hole ID From
(m)
To
(m)
Length
(m)
Grade
(g/t Au) Zones
Pit Infill MB-22-438 Including 51.2 54.4 3.2 4.8 AB14/800
Pit Infill MB-22-438 129.6 137.5 7.9 0.7 D2
Pit Infill MB-22-440 100.3 110.4 10.1 0.7 D2
Pit Infill MB-22-442 59.0 65.0 6.0 1.5 D2
Pit Infill MB-22-442 Including 59.0 60.7 1.7 4.2 D2
Pit Infill MB-22-442 73.2 75.0 1.8 2.8
Pit Extension S MB-22-443 38.4 40.0 1.6 3.4 New H
Pit Extension S MB-22-443 102.2 103.0 0.8 10.9 AB10
Pit Extension S MB-22-447 44.7 54.0 9.3 0.7 New H
Pit Extension S MB-22-447 67.6 72.5 4.9 1.3 AB07
Pit Infill MB-22-449 25.8 48.8 23.0 0.8 D4
Pit Infill MB-22-449 151.0 156.2 5.2 2.1 D2
Pit extension SW MB-22-451 49.5 54.2 4.7 1.4 H17
Pit extension SW MB-22-451 Including 53.3 54.2 0.9 5.8 H17
Pit Infill MB-22-452 14.1 17.0 2.9 2.6 800
Pit Infill MB-22-452 Including 15.5 16.5 1.0 6.4 800
Pit Infill MB-22-452 54.5 65.0 10.5 2.5 D3/AB07
Pit Infill MB-22-452 Including 57.4 59.0 1.6 7.3 D3/AB07
Pit Infill MB-22-452 73.4 80.0 6.6 1.4 AB08
Pit extension SW MB-22-453 19.3 21.0 1.7 4.3 D4
Pit Infill MB-22-454 16.7 25.9 9.2 1.3 H17
Pit Extension S MB-22-455 83.7 92.0 8.3 0.9 800
Pit Extension S MB-22-455 99.0 102.3 3.3 1.7 AB09
Pit extension SW MB-22-456 46.4 51.3 4.9 1.5 H6
Pit extension SW MB-22-456 Including 47.7 49.5 1.8 3.7 H6
Pit Infill MB-22-457 7.2 7.7 0.5 11.9 New
Pit Infill MB-22-457 Including 153.0 154.5 1.5 4.3 D2
Pit extension SW MB-22-458 38.8 54.3 15.5 1.8 H6
Pit extension SW MB-22-458 Including 48.5 49.5 1.0 11.2 H6
Pit Infill MB-22-459 12.5 18.5 6.0 1.1 New
Pit Infill MB-22-459 44.2 49.4 5.2 4.1 D4
Pit Infill MB-22-459 Including 48.8 49.4 0.6 22.3 D4
Pit Infill MB-22-459 Including 56.1 57.0 0.9 5.7 Intrusion D2
Pit extension SW MB-22-460 33.3 36.3 3.0 3.5 New H
Pit extension SW MB-22-460 Including 33.3 34.5 1.2 6.4 New H
Pit extension SW MB-22-460 69.5 76.1 6.6 5.9 H6
Pit extension SW MB-22-460 Including 74.4 75.6 1.2 20.1 H6
Pit Infill MB-22-461 100.5 101.0 0.5 11.4 Intrusion D1
Pit extension SW MB-22-462 159.0 176.2 17.2 0.5 D2
Pit extension SW MB-22-462 179.8 185.1 5.3 1.5 D2
Pit Extension S MB-22-463 98.8 186.7 87.9 0.6 801/AB09/AB20
Pit Extension S MB-22-463 Including 106.2 106.7 0.5 36.4 801
Pit Extension S MB-22-463 Including 136.7 137.7 1.0 12.0 800
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Program Hole ID From
(m)
To
(m)
Length
(m)
Grade
(g/t Au) Zones
Pit Infill MB-22-464 19.1 42.2 23.1 1.0 D4
Pit Infill MB-22-464 Including 26.8 29.7 2.9 3.0 D4
Pit Infill MB-22-464 Including 87.2 88.1 0.9 6.1 D4
Pit Infill MB-22-464 103.9 116.6 12.7 2.1 D2
Pit Infill MB-22-464 Including 112.8 113.3 0.5 44.9 D2
Pit Infill MB-22-465 35.0 45.1 10.1 0.6 AB14
Pit Infill MB-22-467 20.0 27.8 7.8 1.6 AB14
Pit Extension S MB-22-468 97.0 101.8 4.8 1.3 800
Pit Infill MB-22-469 12.0 65.4 53.4 0.8 AB07/D5
Pit Infill MB-22-469 Including 52.5 57.1 4.6 6.7 D5
Pit Infill MB-22-470 16.0 53.0 37.0 1.0 AB07/D5
Pit Infill MB-22-470 Including 28.5 37.1 8.6 3.2 AB07
Pit extension N MB-22-473 6.8 23.8 17.0 0.9 D2
Pit extension N MB-22-473 Including 11.0 12.5 1.5 6.1 D2
Pit Extension S MB-22-474 137.8 161.7 23.9 1.2 800
Pit Extension S MB-22-474 Including 137.8 142.5 4.7 3.3 800
Pit extension N MB-22-475 32.0 33.9 1.9 4.3 H8
Pit Infill MB-22-476 35.5 39.0 3.5 4.6 D2
Pit Infill MB-22-476 Including 35.5 36.0 0.5 28.1 D2
Pit Infill MB-22-478 9.0 35.8 26.8 0.5 Intrusion D2
Pit Infill MB-22-478 73.0 82.4 9.4 1.0 D2
Pit Infill MB-22-478 Including 76.8 78.6 1.8 4.7 D2
Pit Infill MB-22-481 101.7 103.3 1.6 4.0 D2
Pit Infill MB-22-482 11.2 14.0 2.8 7.7 D2
Pit Infill MB-22-482 Including 11.2 12.0 0.8 26.0 D2
Pit Infill MB-22-484 67.0 73.8 6.8 1.0 D2
Pit Infill MB-22-485 11.4 15.2 3.8 2.9 New vertical
Pit Infill MB-22-485 Including 13.3 15.2 1.9 5.4 New vertical
Pit Infill MB-22-485 30.3 44.6 14.3 0.7 New vertical
Pit extension N MB-22-488 52.8 57.6 4.8 6.4 H8
Pit extension N MB-22-488 Including 55.6 56.1 0.5 58.1 H8
Pit Infill MB-22-491 70.5 74.0 3.5 1.8 D2
Pit Infill MB-22-492 84.8 89.2 4.4 5.4 D2
Pit Infill MB-22-492 Including 86.5 87.6 1.1 17.7 D2
Pit extension SW MB-22-493 82.5 90.0 7.5 4.5 H6
Pit extension SW MB-22-493 Including 86.0 89.4 3.4 7.5 H6
Pit Infill MB-22-494 110.8 121.6 10.8 0.5 D2
Pit extension SW MB-22-495 69.8 72.7 2.9 2.4
Pit extension SW MB-22-495 76.6 84.0 7.4 1.3 H17
Pit extension SW MB-22-495 Including 81.0 82.0 1.0 7.1 H17
Pit extension SW MB-22-495 106.6 110.7 4.1 6.3 H6
Pit extension SW MB-22-495 Including 109.3 110.0 0.7 27.2 H6
Pit extension SW MB-22-495 117.0 119.4 2.4 4.3 D2
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Program Hole ID From
(m)
To
(m)
Length
(m)
Grade
(g/t Au) Zones
Pit extension SW MB-22-495 Including 117.0 118.4 1.4 7.3 D2
Pit extension SW MB-22-496 78.0 91.0 13.0 1.4 New H
Pit extension SW MB-22-496 Including 78.8 81.7 2.9 5.2 New H
Pit Infill MB-22-499 102.0 103.0 1.0 9.8 Intrusion D2
Pit Infill MB-22-501 4.6 24.5 19.9 0.5 D4
Pit Infill MB-22-501 49.1 53.1 4.0 2.1 Intrusion D2
Pit Infill MB-22-501 Including 49.7 50.2 0.5 10.9 Intrusion D2
Pit Infill MB-22-501 72.0 80.4 8.4 0.7 D2
Pit extension SW MB-22-505 33.3 36.3 3.0 7.9 D2
Pit extension SW MB-22-505 Including 33.3 34.3 1.0 22.8 D2
Pit extension SW MB-22-507 12.7 17.4 4.7 2.5 H6
Notes:
1) The meterage represents the length of the drilled lengths.
2) Estimated true widths for the Barry deposit interpreted zon es are as follows: D series, AB series, H series 70% to 90% of
core length, 800 series 50% to 70% of core length
3) The mineralized intervals listed are above 0.5 g/t Au and w ith metal factor (grades x thickness) above 5.
Quality Control and Reporting Protocols
The Barry project’s drill core gold analyses are performed at t he Company’s Bachelor Mine
analytical laboratory (the “ Laboratory”) and at AGAT Laboratories, l ocated in Val-d’Or. The
Company employs a rigorous QA-QC analysis program that meets in dustry standards. The
analyses are carried out by fire assay (A.A.) with atomic absor ption finish at the Laboratory and
with gravimetric finish for assay above 10 g/t Au at AGAT labor atories. Blanks, duplicates, and
certified reference standards are inserted into the sample stre am to monitor the Laboratory’s
performance. The Company's QA-QC program requires that at least 10% of samples be analyzed
by an independent laboratory. These verification samples are s ent to ALS Minerals laboratory
facility located in Val-d'Or, Quebec. The verifications show a high degree of correlation with the
Laboratory’s results.
Qualified Persons
Boris Artinian, P.Geo., (OGQ # 154 6) Chief Geologist of the Com pany oversees all exploration
activities on the Barry property and has compiled and approved the information contained in this
press release. Mr. Artinian is a qualified person as defined b y National Instrument 43-101
(“NI-43-101”).
About Bonterra Resources Inc.
Bonterra is a Canadian gold exploration company with a large po rtfolio of advanced exploration
assets anchored by a central milling facility in Quebec, Canada . The Company has four main
assets, Gladiator, Barry, Moroy, and Bachelor that collectively have a total of 1.24 million ounces
in Measured and Indicated categories, and 1.78 million ounces in Inferred category. Importantly,
the Company owns the only permitted and operational gold mill in the region. Bonterra is focused
on graduating from advanced exploration to a development company to deliver shareholder value.