(Toronto, March 03, 2021) Osisko Mining Inc. (OSK:TSX. “Osisko” or the “Corporation”) is pleased to provide new analytical results from the ongoing drill program at its 100% owned Windfall gold project located in the Abitibi greenstone belt, Urban Township, Eeyou Istchee James Bay, Québec.

Today’s infill results are from the southwestern areas of the deposit including Zone 27, Underdog, Caribou, F11, Mallard, and Bobcat. Osisko Chief Executive Officer John Burzynski commented: “Infill drilling continues to deliver impressive grade and width results from the Windfall deposit.”

The table below contains resource definition infill intercepts located inside defined February 2021 mineral resource estimate blocks (see Osisko news release dated February 17, 2021). Significant new analytical results are presented below, including 73 intercepts in 33 drill holes (24 from surface, 9 from underground) and 10 wedges.

Selected intercepts include: 35.7 g/t Au over 9.8 metres, 70.7 g/t Au over 2.0 metres, and 50.4 g/t Au over 3.6 metres in OSK-W-20-2407; 65.6 g/t Au over 4.2 metres in OSK-W-20-2390; 60.8 g/t Au over 2.0 metres in OSK-W-20-2405; 39.0 g/t Au over 3.0 metres in OSK-W-20-2400; 55.2 g/t Au over 2.0 metres in OSK-W-20-2399 and 18.9 g/t Au over 5.5 metres in OSK-W-20-2354-W2. Maps showing hole locations and full analytical results are available at www.osiskomining.com

Infill Drilling

Hole No. From (m) To (m) Interval (m) Au (g/t) uncut Au (g/t) cut to 100 g/t Zone Corridor
OSK-W-20-852-W4 725.0 727.0 2.0 6.83 CARIBOU_2212 CARIBOU
including 725.6 726.0 0.4 27.6
OSK-W-20-913-W1 634.7 637.0 2.3 3.39
Caribou_2523 Caribou
including 634.7 635.0 0.3 18.6
851.0 853.3 2.3 11.1 Caribou_2219 Caribou
including 851.0 851.5 0.5 47.2
OSK-W-20-913-W2 715.0 717.8 2.8 3.89 Caribou_2210 Caribou
846.0 848.0 2.0 15.5 Caribou_2219 Caribou
including 846.0 846.7 0.7 44.0
OSK-W-20-2354-W1 647.0 650.5 3.5 14.6 Caribou_2233 Caribou
674.2 677.4 3.2 24.7 Caribou_2208 Caribou
including 677.0 677.4 0.4 77.9
OSK-W-20-2354-W2 641.0 646.5 5.5 18.9 Caribou_2233 Caribou
including 642.8 643.1 0.3 61.9
OSK-W-20-2354-W3 632.0 635.0 3.0 8.61 Caribou_2214 Caribou
665.7 670.0 4.3 7.53 Caribou_2208 Caribou
including 669.0 670.0 1.0 17.1
OSK-W-20-2354-W4 498.8 501.0 2.2 3.79 Caribou Caribou
649.0 651.0 2.0 6.43 Caribou_2233 Caribou
673.0 676.0 3.0 16.7 Caribou_2208 Caribou
708.0 711.0 3.0 4.97 Caribou_2220 Caribou
OSK-W-20-2359 360.8 363.0 2.2 5.96 Caribou Caribou
OSK-W-20-2359-W1 361.0 363.0 2.0 6.17 Caribou Caribou

see & read more on
https://www.osiskomining.com/osisko-windfall-infills-with-high-grade-in-multiple-zones-35-7-g-t-au-over-9-8-metres-in-underdog-65-6-g-t-au-over-4-2-meters-in-caribou/