Osisko Gold Intersects 7.28 g/t Au over 16.15 m (105 m Vertical Depth), including 173.66 g/t Au over 0.60 m, and 7.13 g/t Au over 11.60 m (61 m Vertical Depth) in Lowhee Zone Underground Infill Drilling at Cariboo Gold Project

Osisko Development Corp. announced new drill assay results from 36 infill holes totaling 3,933 meters drilled from the 1290 m level in the Lowhee Zone of its Cariboo Gold Project in British Columbia. The release highlights significant high-grade gold intercepts, including 173.66 g/t Au over 0.60 m and 111.38 g/t Au over 0.55 m, with intercepts outside modelled reserve stopes suggesting potential for resource conversion and upside mineralization.
The drilling program utilized HQ (63.5 mm diameter) diamond drillholes from station L1290-ORE-000, with depths ranging from 81.20 m to 150.50 m and a target spacing of 10-15 meters. Samples were analyzed by MSALABS in Prince George, B.C., an accredited laboratory using gamma ray analysis via Chrysos PhotonAssay (PA1408X). Quality assurance and control measures included whole core sampling on-site, the insertion of blanks and reference materials at regular intervals, and the use of numbered security tags for sample sealing. No specific cutoff grade was disclosed for composites, intervals not recovered were assigned zero grade, and top cuts were not applied to high-grade assays.
Selected highlight intercepts from the program include:
- BMU-26-121: 7.28 g/t Au over 16.15 m at ~105 m vertical depth, including:
- 173.66 g/t Au over 0.60 m
- 6.80 g/t Au over 0.50 m
- 5.39 g/t Au over 0.50 m
- 3.58 g/t Au over 0.50 m
- BMU-26-075: 7.13 g/t Au over 11.60 m at ~61 m vertical depth, including:
- 62.06 g/t Au over 0.50 m
- 31.88 g/t Au over 0.80 m
- 18.85 g/t Au over 0.50 m
- 7.13 g/t Au over 0.85 m
- 6.47 g/t Au over 0.90 m
- 2.23 g/t Au over 0.85 m
- BMU-26-076: 9.40 g/t Au over 8.50 m at ~72 m vertical depth, including:
- 78.39 g/t Au over 0.65 m
- 41.31 g/t Au over 0.55 m
- 3.77 g/t Au over 0.55 m
- 3.06 g/t Au over 0.50 m
- BMU-26-096: 29.30 g/t Au over 2.10 m at ~62 m vertical depth, including:
- 111.38 g/t Au over 0.55 m
- BMU-26-076: 10.26 g/t Au over 5.75 m at ~56 m vertical depth, including:
- 60.62 g/t Au over 0.80 m
- 7.84 g/t Au over 0.50 m
- 5.28 g/t Au over 0.50 m
- 4.82 g/t Au over 0.50 m
- BMU-26-098: 4.04 g/t Au over 14.35 m at ~78 m vertical depth, including:
- 29.57 g/t Au over 1.00 m
- 20.35 g/t Au over 1.00 m
- 7.06 g/t Au over 0.50 m
- BMU-26-118: 9.98 g/t Au over 5.70 m at ~91 m vertical depth, including:
- 72.45 g/t Au over 0.60 m
- 8.75 g/t Au over 0.75 m
- 6.38 g/t Au over 0.50 m
- 3.16 g/t Au over 0.50 m
- BMU-26-119: 11.17 g/t Au over 3.05 m at ~65 m vertical depth, including:
- 50.82 g/t Au over 0.50 m
- 14.38 g/t Au over 0.50 m
- BMU-26-097: 2.71 g/t Au over 9.95 m at ~63 m vertical depth, including:
- 19.51 g/t Au over 0.95 m
- 6.95 g/t Au over 0.50 m
- 4.87 g/t Au over 0.50 m
- BMU-26-047: 4.10 g/t Au over 6.50 m at ~40 m vertical depth, including:
- 17.25 g/t Au over 0.50 m
- 14.98 g/t Au over 0.50 m
- 9.18 g/t Au over 0.50 m
- 6.33 g/t Au over 0.50 m
- 2.51 g/t Au over 0.50 m
Estimated true widths of intercepts are provided in Table 1, such as an estimated true width of 13.99 m for the BMU-26-121 interval and 11.30 m for the BMU-26-075 interval.
In administrative updates, Barkerville Gold Mines Ltd. awarded the continuing underground mine development and related works contract to JDS Energy & Mining Inc. effective October 5, 2026. Additionally, the company granted 72,700 stock options with an exercise price of C$4.00, vesting over 3 years and expiring on October 5, 2031, as well as 553,700 restricted share units with cliff vesting on October 5, 2029, subject to time and performance conditions, to senior officers and non-executive employees.
Chris Lodder, President, stated: "Ongoing underground infill drilling continues to strengthen our confidence in the Lowhee Zone of the Cariboo Gold deposit. Intercepts outside the modelled reserve stopes also suggest potential for resource conversion and upside mineralization, reinforcing the Cariboo Gold Project's potential as underground development advances into new zones."