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Bonterra Significantly Expands the H15 Zone at Barry; Highlighted by 4.4 g/t Au over 8m

Jun 9, 2021

Bonterra Resources Inc. has announced results from the ongoing drilling campaign at the Barry project.  Recent drilling continues to expand the Barry “H-Series” gold mineralized zones at depth.  Specifically, the Barry H15 Zone gold mineralized outline has quadrupled in size since the last National Instrument 43-101 (“NI 43-101”) report was filed in 2019 and remains open along strike and at depth (see Figure 4).  The latest drilling results encompass 25 expansion diamond drill holes [12,989 metres (“m”)], including seven drill holes that were deepened to test for potential extensions of “H-Series” subparallel zones.  Drilling highlights include a wide zone of mineralization in drill hole MB-21-346 that intercepted 4.4 grams-per-tonne gold (“g/t Au”) over 8.0 m (see Figures 1 to 4).
The Company is currently drilling at a rate of approximately 10,000 m per month and plans to announce a mineral resource estimate update on its three main deposits, Gladiator, Barry, and Moroy in the coming weeks (the “2021 Resource Update”), which is expected to incorporate approximately 130,000 m of new drilling information, including the results presented today.  In addition, work on the the Preliminary Economic Assessment (“PEA”) is ongoing and is expected to be completed in Q4 2021 (see press release dated March 1, 2021).

Drilling Highlights*:

  • 4.4 g/t Au over 8.0 m in hole MB-21-346
  • 9.0 g/t Au over 3.6 m and 5.5 g/t Au over 2.1 m in hole MB-21-345
  • 11.4 g/t Au over 1.8 m in hole MB-21-343
  • 5.4 g/t Au over 5.0 m in hole MB-21-341
  • 5.6 g/t Au over 4.0 m in hole MB-21-349

* True widths are estimated to be greater than 65% of the drill intersection length.

Pascal Hamelin, CEO commented: “It is very encouraging to continue seeing drill results that demonstrate good continuity across thick widths in these “H-Series” gold mineralized zones.  I really look forward to seeing how these results are incorporated into the upcoming mineral resource estimate update.  Importantly, companywide engineering and permitting continues to progress which should allow for a smooth and rapid transition for Bonterra from exploration to development over the next 18-24 months.”

Figure 1 – Barry Project - Drill Hole Location Map

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Figure 2 - Barry West Composite Cross Section

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Figure 3 - Barry Central Composite Cross Section

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Figure 4 – Barry H15 Zone Longitudinal Section

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The Company has drilled 86 holes and deepened eight existing holes representing a total of 38,958 m at Barry since July 23, 2020.  Complete and partial results from 21 drill holes have been received including seven of the eight deepened holes since the press release dated March 31, 2021.  Some results from the remaining holes are still pending (See Table 1 and Figure 1).

The Barry drilling program targeted the expansion and continuity of the gold mineralized zones in key areas around the NI 43-101 Barry mineral resource estimate in 2019.  Drilling results continue to confirm the expansion of multiple “H-Series” subparallel zones which remain open at depth across the Barry deposit, in addition to outlining further potential to the east of the deposit (See Table 1 and Figures 1 to 4).
The Barry gold deposit is characterized as multiple sub-parallel, sub-vertical, shear zones and a second set of subparallel “H-Series” veins dipping 30 to 60 degrees to the south hosted within intermediate to mafic volcanics and tuffs with local felsic intrusions.  Gold mineralization consists of disseminated sulfides within the shear zones and the veins with local visible gold.  The Barry deposit has been delineated over 1.4 kilometres along strike and 600 m vertical and remains open for expansion.

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