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home / news releases / OSK:CC - Osisko Windfall 2023 Drilling Update Regional Exploration to Resume

OSK:CC - Osisko Windfall 2023 Drilling Update Regional Exploration to Resume

Osisko Mining Inc.

TORONTO, Oct. 26, 2023 (GLOBE NEWSWIRE) -- Osisko Mining Inc. (OSK:TSX. "Osisko" or the "Corporation") is pleased to provide an update from the ongoing drill program at its 50% owned Windfall gold project located in the Abitibi greenstone belt, Urban Township, Eeyou Istchee James Bay, Québec.

The 2023 drilling campaign primarily targeted infill areas. Since the start of the year, over 95,000 metres have been drilled by 8 underground rigs focused on the Lynx segment of the deposit.

Highlights from the 2023 drill program are presented below and include 320 intercepts from 248 drill holes and 1 wedge. These highlights are intercepts with a metal factor (grams*meters) greater than 20. The intercepts are all located within the defined mineral resource estimate ("MRE") blocks as described in Osisko's feasibility study on Windfall (see FS Technical Report (as defined herein), a copy of which is available on SEDAR+ under Osisko's issuer profile ), and have targeted upgrading inferred mineral resources to measured or indicated mineral resources or indicated minerals resources to measured mineral resources as applicable.

Osisko Chief Executive Officer John Burzynski commented: "Infill drilling at the Windfall deposit is progressing well and confirming our models. High-grade gold continues to be intercepted in the Lynx areas including Triple Lynx, once again highlighting the world-class nature of the deposit. Of note, we have more than ten intervals in this set of numbers that returned values over one kilogram per tonne of gold. Infill drilling will continue into next year. We and our joint venture partner are very much looking forward to resuming exploration on our greater than 2,300 square kilometer land package around Windfall in the coming months."

Regional exploration in the Urban Barry area will recommence on near-deposit and regional grassroots targets. Exploration will include ground geophysics and diamond drilling of various targets.

Maps showing Windfall hole locations are available at www.osiskomining.com .
Maps: Top_Intersect_2023 , PR_Longsections_ 20231026_EN .

2023 Drilling

Hole No.
From (m)
To (m)
Interval (m)
Au (g/t)
uncut
Au (g/t)
cut to 100 g/t
Zone
OSK-W-23-2671
112.8
115.0
2.2
210
33
LXM
including
113.2
113.9
0.7
658
100
WST-22-1082
425.3
427.6
2.3
57.9
56.1
LX4
including
425.7
426.0
0.3
104
100
including
426.0
426.6
0.6
105
100
WST-22-1154
113.5
115.8
2.3
35.2
31.3
TLX
WST-22-1171
76.0
78.0
2.0
35.0
30.1
LXM
81.4
84.0
2.6
39.3
21.4
including
81.4
81.7
0.3
255
100
128.0
130.0
2.0
15.4
WST-22-1182A
526.8
528.8
2.0
99.3
54.9
TLX
including
527.6
528.4
0.8
211
100
553.0
556.0
3.0
15.4
WST-22-1182A-W1
553.8
562.2
8.4
29.6
29.2
TLX
including
557.4
558.1
0.7
105
100
and
558.6
559.3
0.7
92.5
WST-22-1218
101.0
104.4
3.4
74.0
48
TLX
including
102.0
102.5
0.5
274
100
235.3
238.0
2.7
223
15
including
235.8
236.1
0.3
1970
100
WST-22-1219
230.0
233.0
3.0
15.9
TLX
WST-22-1237
119.5
121.7
2.2
376
41.4
LXM
including
119.5
120.4
0.9
919
100
WST-22-1240
144.5
146.6
2.1
24.1
LXM
WST-22-1241
139.5
141.5
2.0
27.9
TLX
WST-22-1246
154.0
156.4
2.4
12.5
LXM
WST-22-1249A
296.1
298.1
2.0
204
22.3
TLX
including
296.6
297.0
0.4
1010
100
WST-22-1250
91.0
93.1
2.1
11.3
TLX
WST-22-1252
95.8
99.3
3.5
192
75
TLX
including
95.8
96.4
0.6
525
100
WST-22-1253
96.0
99.0
3.0
90.8
50.8
TLX
including
96.7
97.1
0.4
216
100
and
97.6
98.4
0.8
192
100
216.5
218.5
2.0
12.0
WST-22-1254
95.3
98.3
3.0
154
50.5
TLX
including
97.0
98.0
1.0
410
100
216.1
218.3
2.2
20.6
TLX
WST-22-1255
98.0
100.4
2.4
9.49
TLX
WST-22-1256
479.5
483.4
3.9
24.0
16.5
TLX
including
482.4
482.7
0.3
197
100
WST-22-1261
112.4
114.6
2.2
39.8
14.2
LXM
178.9
181.0
2.1
19.6
WST-22-1262
138.9
141.1
2.2
22.7
TLX
WST-22-1264
126.1
128.5
2.4
23.8
TLX
WST-22-1265
135.5
137.9
2.4
13.2
TLX
WST-22-1266
133.3
136.5
3.2
135
57.2
TLX
including
133.3
134.5
1.2
308
100
WST-22-1270A
305.8
308.0
2.2
12.3
TLX
WST-22-1273
356.9
358.9
2.0
21.7
TLX
487.8
490.2
2.4
16.0
511.0
513.4
2.4
16.5
WST-22-1275
168.6
174.6
6.0
9.38
LXM
WST-22-1276
117.4
119.4
2.0
12.6
LXM
WST-22-1279
80.0
82.0
2.0
57.8
25.3
LXM
including
80.5
81.0
0.5
230
100
125.9
128.7
2.8
9.82
WST-22-1280
84.2
86.5
2.3
14.5
LXM
WST-22-1285
116.1
120.0
3.9
25.0
TLX
WST-22-1286
101.7
105.5
3.8
101
37.9
TLX
including
102.5
103.0
0.5
577
100
163.5
166.9
3.4
34.8
including
165.6
166.0
0.4
75.5
WST-22-1287
132.0
134.0
2.0
171
56.2
LXM
including
132.6
133.2
0.6
483
100
WST-22-1288
214.0
216.0
2.0
77.8
41.3
TLX
including
214.9
215.4
0.5
241
100
215.7
216.0
0.3
108
WST-22-1290
103.0
105.1
2.1
10.7
LXM
WST-22-1292
199.1
201.3
2.2
18.2
TLX
WST-22-1293
100.3
102.3
2.0
127
35.9
TLX
including
101.0
101.6
0.6
405
100
TLX
WST-22-1294
59.0
61.1
2.1
20.5
LXM
WST-22-1296
65.0
71.6
6.6
12.4
LXM
WST-22-1297
84.0
86.4
2.4
112
51.3
LXM
including
84.0
84.4
0.4
462
100
WST-22-1298A
75.0
78.3
3.3
304
41.6
LXM
including
75.6
76.3
0.7
1335
100
WST-23-1304
46.5
49.4
2.9
10.9
LXM
115.0
117.3
2.3
19.0
WST-22-1305
103.0
105.4
2.4
17.8
TLX
WST-22-1306
114.9
123.0
8.1
24.8
TLX
including
115.3
116.0
0.7
76.1
and
120.9
121.5
0.6
69.4
WST-22-1307
119.0
121.0
2.0
30.7
TLX
114.0
116.4
2.4
12.2
LXM
WST-22-1308
57.0
59.0
2.0
13.6
WST-23-1309
60.9
63.0
2.1
18.1
LXM
143.0
145.0
2.0
16.0
WST-23-1310
65.7
69.0
3.3
78.2
60.9
LXM
including
68.0
69.0
1.0
157
100
WST-23-1316
114.7
117.0
2.3
18.6
LXM
WST-23-1317
70.6
72.6
2.0
305
40.7
LXM
including
71.0
71.5
0.5
1135
100
72.6
74.7
2.1
16.9
WST-23-1319
72.2
74.8
2.6
16.1
LXM
WST-23-1320
75.2
78.5
3.3
11.1
LXM
WST-23-1322
71.4
74.3
2.9
138
43.9
TLX
including
72.0
73.0
1.0
372
100
127.8
131.0
3.2
49.6
27.4
including
128.9
129.5
0.6
218
100
126.5
133.0
6.5
25.7
14.8
including
128.9
129.5
0.6
218
100
156.6
158.9
2.3
13.7
WST-23-1323
113.4
116.0
2.6
56.9
40.8
TLX
including
114.2
114.7
0.5
153
100
and
115.2
115.5
0.3
152
100
WST-23-1326
63.7
66.0
2.3
89.4
31.6
LXM
including
64.7
65.4
0.7
290
100
WST-23-1329
113.0
117.5
4.5
25.6
TLX
including
114.0
114.3
0.3
53.0
and
116.6
117.2
0.6
53.8
120.9
125.0
4.1
17.8
145.6
146.0
2.1
10.8
WST-23-1332
99.0
102.6
3.6
39.1
36.8
LXM
including
101.0
101.4
0.4
121
100
WST-23-1343
127.1
129.5
2.4
129
29.6
LXM
including
127.1
127.8
0.7
442
100
62.0
64.0
2.0
20.0
LXM
WST-23-1345
56.1
59.0
2.9
16.7
LXM
WST-23-1347
119.5
121.8
2.3
25.8
LXM
WST-23-1348
65.0
67.3
2.3
11.4
LXM

102.3
104.9
2.6
9.66
WST-23-1350
114.0
116.0
2.0
23.0
LXM
WST-23-1353
91.6
93.9
2.3
37.1
32.3
LXM
WST-23-1354
93.3
95.8
2.5
11.1
LXM
WST-23-1357
89.6
91.6
2.0
14.3
TLX
WST-23-1358
92.6
94.8
2.2
12.8
TLX
WST-23-1360
46.1
50.3
4.2
18.0
LXM
WST-23-1364
46.9
49.0
2.1
12.0
LXM
WST-23-1365
56.0
60.6
4.6
4.61
LXM
WST-23-1366
57.6
61.7
4.1
7.90
LXM
WST-23-1371
87.6
89.7
2.1
9.58
TLX
WST-23-1373
184.5
186.6
2.1
69.7
47.2
TLX
including
185.4
186.2
0.8
159
100
161.5
163.5
2.0
28.0
TLX
WST-23-1374
77.2
80.0
2.8
19.9
LXM
81.5
83.6
2.1
43.7
14.5
LXM
WST-23-1375
102.0
104.0
2.0
10.4
LXM
WST-23-1381
86.0
88.0
2.0
12.8
LXM
WST-23-1384
54.5
56.7
2.2
228
31.8
LXM
including
56.0
56.7
0.7
717
100
WST-23-1387
59.0
61.0
2.0
34.7
LXM
WST-23-1388
84.5
86.6
2.1
29.4
LXM
WST-23-1389
84.5
87.0
2.5
10.2
TLX
WST-23-1390
84.7
87.0
2.3
13.6
TLX
WST-23-1391A
89.0
91.0
2.0
23.5
22.1
TLX
WST-23-1395
125.2
127.5
2.3
177
71.6
TLX
including
126.2
126.8
0.6
460
100
134.8
137.0
2.2
54.9
23.5
including
135.3
135.7
0.4
273
100
146.0
150.9
4.9
4.91
WST-23-1396
182.8
184.9
2.1
20.3
TLX
WST-23-1398
95.3
98.7
3.4
35.1
28.9
LXM
including
95.3
96.2
0.9
124
100
WST-23-1406
73.5
75.6
2.1
27.0
LXM
WST-23-1410
95.0
97.2
2.2
10.9
TLX
WST-23-1414
121.0
123.0
2.0
17.4
LXM
WST-23-1416
83.0
85.2
2.2
9.88
LXM
WST-23-1419
89.9
92.0
2.1
110
39.8
LXM
including
90.3
90.6
0.3
499
100
WST-23-1422
137.3
141.3
4.0
68.0
49.1
TLX
including
138.8
139.6
0.8
195
100
WST-23-1424
135.5
137.7
2.2
29.3
TLX
130.0
132.7
2.7
14.5
WST-23-1425
132.2
135.2
3.0
283
61.3
TLX
including
134.6
135.2
0.6
1165
100
107.0
109.8
2.8
10.0
WST-23-1426
121.0
123.6
2.6
24.3
TLX
175.0
177.0
2.0
12.2
WST-23-1427
61.0
63.0
2.0
25.4
LXM
WST-23-1429
63.3
65.5
2.2
24.2
LXM
47.0
49.0
2.0
10.7
WST-23-1430
69.0
71.5
2.5
13.6
LXM
WST-23-1432
88.0
90.5
2.5
9.85
TLX
WST-23-1441
203.3
205.8
2.5
22.5
TLX
WST-23-1442
338.5
340.6
2.1
17.4
TLX
WST-23-1443
166.0
168.3
2.3
71.9
25.4
LHW
including
166.0
166.5
0.5
314
100
60.0
62.0
2.0
25.2
LXM
68.0
70.0
2.0
13.9
WST-23-1444
61.2
63.3
2.1
57.3
40.7
LXM
including
61.7
62.3
0.6
158
100
WST-23-1445
61.9
64.0
2.1
44.7
28.9
LXM
64.0
66.4
2.4
26.8
WST-23-1448
100.0
102.2
2.2
18.3
TLX
WST-23-1450
93.0
95.0
2.0
38.4
25.2
TLX
WST-23-1451
92.7
94.7
2.0
46.1
26.5
TLX
WST-23-1453
68.5
73.1
4.6
48.4
28.7
LXM
including
72.4
73.1
0.7
229
100
75.2
85.0
9.8
18.7
17.8
LXM
including
76.6
77.1
0.5
119
100
and
81.4
82.8
1.4
47.2
WST-23-1455
92.3
94.9
2.6
46.2
40.8
LXM
including
92.3
93.3
1.0
114
100
WST-23-1456
39.5
41.5
2.0
59.5
30.0
LXM
including
40.0
40.6
0.6
198
100
64.5
68.9
4.4
18.2
LXM
WST-23-1457
39.0
41.2
2.2
27.2
LXM
WST-23-1458
39.6
41.6
2.0
52.6
30.4
LXM
including
39.6
40.2
0.6
174
100
WST-23-1465
121.0
123.0
2.0
10.3
TLX
WST-23-1466
103.8
106.0
2.2
15.4
TLX
92.5
95.4
2.9
16.7
WST-23-1467
91.7
94.0
2.3
24.3
TLX
WST-23-1468
91.5
93.7
2.2
9.59
TLX
WST-23-1470
85.4
87.5
2.1
17.5
LXM
WST-23-1471
67.0
69.0
2.0
11.9
LXM
WST-23-1472
71.9
74.1
2.2
9.51
LXM
WST-23-1473
72.5
74.6
2.1
26.9
LXM
WST-23-1474
74.4
77.0
2.6
109
37.5
LXM
including
74.4
75.2
0.8
332
100
WST-23-1475
175.4
180.0
4.6
45.6
25.8
LXM
including
176.0
176.7
0.7
230
100
WST-23-1476
177.2
180.0
2.8
18.2
LXM
WST-23-1478
102.0
104.1
2.1
30.7
29.8
TLX
WST-23-1480
100.0
102.0
2.0
20.5
TLX
WST-23-1482
171.0
173.0
2.0
51.4
40.8
LXM
including
172.2
173.0
0.8
127
100
WST-23-1484
89.6
92.0
2.4
15.3
TLX
WST-23-1485
89.9
92.0
2.1
31.0
TLX
110.0
112.2
2.2
12.8
WST-23-1486
88.8
91.0
2.2
38.1
TLX
156.0
158.0
2.0
24.5
TLX
WST-23-1487
152.9
155.0
2.1
118
58.2
LXM
including
152.9
153.3
0.4
354
100
WST-23-1490
150.0
152.0
2.0
10.2
LXM
WST-23-1491
59.3
61.5
2.2
80.4
23.2
LXM
including
59.3
59.6
0.3
520
100
WST-23-1492
56.3
59.7
3.4
35.2
32.3
LXM
including
56.3
56.9
0.6
117
100
WST-23-1494
46.0
48.1
2.1
22.8
LXM
WST-23-1495
131.8
134.1
2.3
14.1
13.1
LXM
WST-23-1496
134.2
137.1
2.9
66.1
17.5
LXM
including
134.6
135.1
0.5
382
100
49.4
51.7
2.3
17.3
WST-23-1497
47.7
50.6
2.9
39.8
39.3
LXM

including
48.1
48.5
0.4
104
100
WST-23-1500
115.2
117.4
2.2
14.1
LXM
WST-23-1501
107.5
109.6
2.1
12.9
LXM
WST-23-1503
140.0
142.0
2.0
14.2
TLX
WST-23-1514
59.9
62.0
2.1
44.4
19.2
LXM
WST-23-1515
64.0
66.1
2.1
17.4
LXM
WST-23-1516
65.5
68.6
3.1
110
56.0
LXM
including
67.9
68.6
0.7
229
100
133.0
135.0
2.0
14.8
WST-23-1519
135.0
137.0
2.0
24.4
TLX
WST-23-1520
121.0
123.8
2.8
85.2
75.3
TLX
WST-23-1522
122.0
124.0
2.0
10.2
TLX
WST-23-1523
120.5
124.0
3.5
444
59.0
TLX
including
121.4
121.7
0.3
3910
100
WST-23-1524
119.1
121.6
2.5
121
50.4
TLX
including
120.7
121.6
0.9
296
100
WST-23-1525
148.3
150.4
2.1
19.6
TLX
123.0
125.1
2.1
17.7
159.0
161.2
2.2
9.22
127.0
129.0
2.0
16.0
WST-23-1530
89.0
91.1
2.1
15.1
LXM
75.2
77.4
2.2
11.5
WST-23-1532
77.0
79.5
2.5
22.7
LXM
85.4
88.5
3.1
67.9
38.5
including
86.5
86.8
0.3
404
100
91.0
93.1
2.1
66.0
49.3
including
91.3
92.2
0.9
139
100
WST-23-1533
72.0
74.3
2.3
15.7
LXM
WST-23-1534
40.0
42.0
2.0
19.9
LXM
WST-23-1535
64.8
68.0
3.2
23.9
LXM
WST-23-1538
124.6
126.5
1.9
32.2
30.9
LXM
WST-23-1541
104.0
106.0
2.0
23.5
20.3
LXM
WST-23-1542
55.5
57.5
2.0
43.7
30.5
LXM
WST-23-1543
59.5
64.8
5.3
27.8
25.9
LXM
including
59.5
60.4
0.9
89.3
78.4
and
63.4
63.9
0.5
80.3
WST-23-1549
135.0
137.6
2.6
31.8
LXM
WST-23-1550
132.0
134.5
2.5
18.4
LXM
WST-23-1555
111.2
113.3
2.1
35.0
34.9
TLX
WST-23-1557
83.8
86.1
2.3
78.0
24.5
LXM
including
84.1
84.6
0.5
346
100
WST-23-1560
94.0
96.0
2.0
11.5
LXM
WST-23-1575
44.1
46.5
2.4
8.38
LXM
WST-23-1577
63.3
66.3
3.0
64.9
36.9
LXM
including
64.0
64.6
0.6
240
100
WST-23-1578
41.8
44.2
2.4
18.1
LXM
WST-23-1579
47.3
50.8
3.5
26.9
26.2
LXM
WST-23-1580
48.2
52.2
4.0
36.1
LXM
including
51.6
52.2
0.6
97.3
WST-23-1581
50.5
52.7
2.2
224
58.5
LXM
including
51.7
52.1
0.4
501
100
136.4
139.6
3.2
24.7
LXM
WST-23-1583
41.9
44.0
2.1
16.6
LXM
WST-23-1585
102.9
105.4
2.5
39.4
LXM
WST-23-1591
60.0
62.0
2.0
19.4
LXM
WST-23-1592
59.6
62.0
2.4
31.4
29.4
LXM
WST-23-1593
42.0
44.0
2.0
10.9
LXM
WST-23-1596
58.0
60.0
2.0
117
25.1
LXM
including
58.0
58.5
0.5
466
100
WST-23-1602
129.0
131.1
2.1
71.5
52.0
TLX
including
129.8
130.5
0.7
159
100
WST-23-1603
123.3
126.1
2.8
322
59.1
TLX
including
123.9
124.8
0.9
918
100
WST-23-1604
122.2
125.0
2.8
21.3
15.4
TLX
WST-23-1605
123.0
125.7
2.7
692
57.8
TLX
including
124.2
125.0
0.8
2240
100
WST-23-1606
121.7
124.6
2.9
183
42.6
TLX
including
122.0
122.5
0.5
916
100
WST-23-1607
119.3
122.4
3.1
171
34.1
TLX
including
121.6
122.1
0.5
947
100
157.0
159.0
2.0
11.9
TLX
WST-23-1608
104.9
107.5
2.6
43.0
12.0
LXM
including
106.2
106.5
0.3
369
100
WST-23-1614
98.0
100.2
2.2
20.0
TLX
WST-23-1615
84.0
87.2
3.2
33.9
32.7
TLX
including
85.2
85.6
0.4
68.0
and
85.9
86.2
0.3
113
100
and
86.6
86.9
0.3
83.0
WST-23-1616
83.0
85.3
2.3
85.3
50.9
TLX
including
84.4
85.0
0.6
232
100
WST-23-1618
72.0
74.0
2.0
16.7
LXM
WST-23-1619
89.4
92.0
2.6
28.4
TLX
WST-23-1620
89.5
91.6
2.1
23.4
TLX
WST-23-1631
86.6
88.6
2.0
21.5
TLX
WST-23-1640
95.0
97.1
2.1
18.0
LXM
123.0
125.0
2.0
68.5
25.0
including
123.8
124.3
0.5
274
100
WST-23-1642
100.5
102.8
2.3
71.3
45.7
LXM
including
100.9
101.9
1.0
159
100
WST-23-1650
54.8
57.4
2.6
63.3
LXM
WST-23-1652
27.0
29.1
2.1
41.6
LXM
68.4
75.4
7.0
124
37.1
LXM
including
74.0
75.0
1.0
711
100
WST-23-1661
129.1
132.0
2.9
9.21
LXM
WST-23-1662
115.3
117.6
2.3
18.4
LXM
WST-23-1664
118.8
121.0
2.2
30.6
18.3
LXM
WST-23-1665
124.3
126.3
2.0
16.1
LXM
143.2
145.2
2.0
12.2
WST-23-1673
56.0
58.8
2.8
77.1
18.0
LXM
including
58.4
58.8
0.4
514
100
WST-23-1674
60.0
62.0
2.0
108
37.4
LXM
including
60.5
61.2
0.7
302
100
WST-23-1675
60.8
63.0
2.2
91.0
39.4
LXM
including
61.3
62.1
0.8
242
100
WST-23-1676
62.6
64.6
2.0
48.5
30.3
LXM
WST-23-1677
45.3
48.0
2.7
62.3
57.4
LXM
including
47.5
48.0
0.5
127
100
64.0
66.0
2.0
12.8
WST-23-1678
120.6
123.0
2.4
270
79.0
TLX
including
121.0
121.3
0.3
1435
100
WST-23-1679
122.8
124.9
2.1
97.7
53.5
TLX
including
123.2
124.0
0.8
216
100
WST-23-1680
127.6
129.6
2.0
32.5
TLX
WST-23-1681
133.0
135.0
2.0
50.9
16.4
TLX
including
134.2
134.5
0.3
330
100
258.7
261.1
2.4
13.3
TLX
WST-23-1683
129.2
137.0
7.8
13.0
LXM
including
129.2
129.6
0.4
62.0
and
136.0
137.0
1.0
52.2
WST-23-1687
107.9
110.3
2.4
10.4
TLX
WST-23-1688
113.2
115.3
2.1
20.2
TLX
WST-23-1690
124.0
126.0
2.0
10.4
TLX
WST-23-1692
373.5
375.5
2.0
10.0
LX4
WST-23-1693
374.2
376.5
2.3
23.7
TLX
WST-23-1695
115.0
117.0
2.0
41.7
35.0
LXM
WST-23-1700
109.3
111.4
2.1
31.9
LXM
WST-23-1701
141.7
143.9
2.2
18.4
LHW
WST-23-1704
77.9
79.9
2.0
21.5
LXM
44.1
46.1
2.0
13.7
WST-23-1705
82.7
91.2
8.5
55.3
13.4
LXM
including
82.7
83.3
0.6
694
100
96.7
98.7
2.0
33.0
20.1
WST-23-1706
74.6
77.0
2.4
498
84.6
LXM
including
74.6
75.4
0.8
1045
100
WST-23-1707*
83.0
91.0
8.0
413
LXM
including
84.4
85.4
1.0
1580
100
and
87.6
88.0
0.4
962
100
WST-23-1714
105.1
109.6
4.5
65.0
58.7
TLX
including
105.5
106.4
0.9
132
100
WST-23-1715
93.4
95.4
2.0
171
81.9
TLX
including
95.0
95.4
0.4
543
100
WST-23-1719
121.5
123.5
2.0
77.3
42.3
TLX
including
121.8
122.6
0.8
188
100
97.0
99.0
2.0
11.0
TLX
WST-23-1720
78.6
80.7
2.1
44.9
33.6
TLX
124.3
126.3
2.0
232
45.3
including
124.6
125.3
0.7
632
100
WST-23-1721
132.1
135.0
2.9
54.0
40.8
TLX
including
133.3
134.2
0.9
143
100
WST-23-1723A
104.0
106.1
2.1
17.3
LXM
118.0
120.2
2.2
11.6
LXM
WST-23-1736
100.3
103.0
2.7
16.5
TLX
320.4
322.5
2.1
39.4
LX4
WST-23-1737
143.5
145.7
2.2
13.8
TLX
WST-23-1741
65.0
67.0
2.0
12.7
LXM
WST-23-1742
62.0
64.2
2.2
37.3
LXM
WST-23-1743
59.8
62.0
2.2
160
72.9
LXM
including
59.8
60.4
0.6
420
100
134.5
139.0
4.5
12.4
LXM
51.7
54.4
2.7
12.5
129.0
131.0
2.0
14.7
WST-23-1745
57.0
59.4
2.4
50.7
WST-23-1746
185.9
188.0
2.1
22.0
TLX
363.8
366.0
2.2
25.8
19.1
TLX
369.9
372.1
2.2
282
15.1
including
370.3
370.6
0.3
2060
100
WST-23-1748
108.8
111.8
3.0
35.3
LXM
including
110.5
111.0
0.5
72.7
and
111.4
111.8
0.4
92.8
WST-23-1753
127.7
130.1
2.4
12.2
TLX
WST-23-1756
126.0
128.0
2.0
17.5
LXM
131.4
133.6
2.2
46.5
27.1
LXM
including
133.1
133.6
0.5
186
100
WST-23-1760
56.6
58.6
2.0
120
50.1
LXM
including
56.6
57.6
1.0
240
100
192.0
194.0
2.0
266
54.8
including
192.6
192.9
0.3
1050
100
WST-23-1768
115.9
120.0
4.1
10.2
TLX
WST-23-1769
101.8
105.3
3.5
36.7
TLX
including
104.5
105.3
0.8
84.9
WST-23-1775
131.0
133.0
2.0
16.9
LXM
137.1
139.5
2.4
100
38.3
including
139.2
139.5
0.3
593
100
144.6
147.0
2.4
24.4
WST-23-1781
136.1
138.2
2.1
38.9
24.3
TLX
WST-23-1782
129.0
131.2
2.2
48.4
31.9
TLX
including
130.0
130.6
0.6
161
100
WST-23-1783
124.0
126.3
2.3
50.3
45.1
TLX
including
125.1
125.7
0.6
120
100
WST-23-1786
99.8
103.0
3.2
37.0
33.5
TLX
including
101.8
102.6
0.8
107
92.5
WST-23-1788
95.8
100.6
4.8
39.3
30.4
TLX
including
95.8
96.7
0.9
148
100
111.4
115.5
4.1
8.68
TLX
WST-23-1789
131.7
134.0
2.3
36.1
16.5
LXM
WST-23-1793
150.0
152.0
2.0
10.3
LXM
WST-23-1794
149.7
151.7
2.0
32.2
LXM
WST-23-1796
117.8
120.0
2.2
12.2
TLX
WST-23-1810
131.5
133.6
2.1
167
43.2
LXM
including
132.3
133.2
0.9
388
100
148.6
150.6
2.0
11.4
WST-23-1812
124.8
126.8
2.0
15.6
LXM
WST-23-1829
116.0
118.0
2.0
11.7
LXM

Notes: True widths are estimated at 55 – 80% of the reported core length interval. See "Quality Control and Reporting Protocols" below. LXM = Lynx Main, LHW = Lynx Hanging Wall, and TLX = Triple Lynx. *0.5 meters of core not recovered in this interval.


Drill hole location

Hole Number
Azimuth (°)
Dip (°)
Length (m)
UTM E
UTM N
Elevation
Section
OSK-W-23-2671
337
-66
126
453338
5435040
398
3525E
WST-22-1082
166
-23
516.6
453444
5435276
-99
3725E
WST-22-1154
163
2
123.6
453342
5435282
-187
3650E
WST-22-1171
139
-13
242.7
453180
5435128
174
3425E
WST-22-1182A
112
-76
761.1
453647
5435347
-189
3950E
WST-22-1182A-W1
112
-76
810.6
453647
5435347
-189
3950E
WST-22-1218
162
-49
279.3
453542
5435311
-173
3825E
WST-22-1219
163
-42
243.5
453542
5435311
-173
3825E
WST-22-1237
143
-9
183.4
453701
5435376
-197
4000E
WST-22-1240
141
9
177.5
453701
5435376
-196
4000E
WST-22-1241
152
12
153.5
453343
5435283
-186
3650E
WST-22-1246
159
7
183.5
453600
5435324
-179
3900E
WST-22-1249A
186
-3
384.6
453442
5435275
-98
3725E
WST-22-1250
182
0
381.7
453442
5435275
-98
3725E
WST-22-1252
169
-41
252.4
453542
5435311
-173
3825E
WST-22-1253
165
-38
252.3
453542
5435311
-172
3825E
WST-22-1254
169
-36
252.5
453541
5435311
-172
3825E
WST-22-1255
162
-32
240.5
453542
5435311
-172
3825E
WST-22-1256
165
-70
585.5
453757
5435406
-208
4075E
WST-22-1261
163
2
204.6
453258
5435210
97
3525E
WST-22-1262
147
9
165.5
453344
5435283
-186
3650E
WST-22-1264
147
1
171.5
453344
5435283
-187
3650E
WST-22-1265
143
4
168.5
453344
5435283
-187
3650E
WST-22-1266
140
1
168.4
453344
5435283
-187
3650E
WST-22-1270A
162
-18
417.5
453278
5435248
-145
3575E
WST-22-1273
138
-68
559.1
453758
5435406
-208
4075E
WST-22-1275
161
-10
192.3
453258
5435210
97
3525E
WST-22-1276
161
-11
192.4
453258
5435210
97
3525E
WST-22-1279
141
-9
198.7
453180
5435128
174
3425E
WST-22-1280
137
-3
99.5
453180
5435128
174
3425E
WST-22-1285
145
-7
195.6
453344
5435283
-187
3650E
WST-22-1286
152
-55
183.6
453646
5435347
-188
3950E
WST-22-1287
134
-52
253.1
453758
5435406
-207
4075E
WST-22-1288
158
-42
255
453543
5435312
-173
3825E
WST-22-1290
148
42
264.1
453646
5435347
-184
3950E
WST-22-1292
170
2
360.5
453279
5435248
-144
3575E
WST-22-1293
172
-47
390.5
453543
5435311
-173
3825E
WST-22-1294
173
-22
159.5
453756
5435405
-207
4075E
WST-22-1296
136
-18
196
453758
5435406
-207
4075E
WST-22-1297
136
-17
150.6
453180
5435128
174
3425E
WST-22-1298A
141
-18
156.5
453179
5435127
174
3425E
WST-22-1305
151
-8
174.6
453344
5435283
-187
3650E
WST-22-1306
149
-4
174.1
453343
5435283
-187
3650E
WST-22-1307
152
-1
177.5
453343
5435282
-187
3650E
WST-22-1308
151
-2
168.3
453601
5435324
-179
3900E
WST-23-1304
149
-19
174.6
453700
5435376
-197
4000E
WST-23-1309
157
5
174.6
453600
5435324
-179
3900E
WST-23-1310
152
10
177.3
453600
5435324
-179
3900E
WST-23-1316
159
-2
204.5
453259
5435210
97
3525E
WST-23-1317
152
-18
93.6
453179
5435127
174
3425E
WST-23-1319
160
-7
126.5
453179
5435127
174
3425E
WST-23-1320
164
0
129.5
453179
5435127
174
3425E
WST-23-1322
217
-43
165.5
453540
5435311
-173
3825E
WST-23-1323
209
-37
177.5
453541
5435311
-173
3825E
WST-23-1326
152
21
219.7
453646
5435347
-186
3950E
WST-23-1329
143
-7
180.3
453344
5435283
-187
3650E
WST-23-1332
119
-10
120.2
453180
5435128
174
3425E
WST-23-1343
156
6
162.5
453646
5435346
-187
3950E
WST-23-1345
148
-21
150.5
453646
5435347
-187
3950E
WST-23-1347
159
8
144.4
453258
5435210
97
3525E
WST-23-1348
156
-30
120.6
453757
5435406
-207
4075E
WST-23-1350
173
-6
135.5
453258
5435210
97
3525E
WST-23-1353
183
13
111.5
453442
5435275
-98
3725E
WST-23-1354
180
19
114.7
453443
5435276
-97
3725E
WST-23-1357
150
-20
102.6
453542
5435311
-172
3825E
WST-23-1358
145
-24
114.7
453542
5435311
-172
3825E
WST-23-1360
154
-17
150.6
453701
5435376
-197
4000E
WST-23-1364
156
-2
156.6
453700
5435375
-197
4000E
WST-23-1365
153
1
159.6
453700
5435375
-197
4000E
WST-23-1366
155
5
165.6
453701
5435376
-196
4000E
WST-23-1371
153
-14
114.6
453279
5435248
-145
3575E
WST-23-1373
138
-59
249.6
453646
5435347
-188
3950E
WST-23-1374
147
-8
141.5
453179
5435127
174
3425E
WST-23-1375
172
-2
126.5
453179
5435127
174
3425E
WST-23-1381
164
21
102.4
453443
5435276
-97
3725E
WST-23-1384
170
-14
84.5
453645
5435346
-187
3950E
WST-23-1387
180
-5
81.5
453645
5435346
-187
3950E
WST-23-1388
136
-7
96.5
453543
5435311
-172
3825E
WST-23-1389
154
-13
201.5
453543
5435311
-172
3825E
WST-23-1390
150
-15
201.5
453543
5435311
-172
3825E
WST-23-1391A
153
-16
204.4
453542
5435311
-172
3825E
WST-23-1395
183
-9
159.5
453442
5435339
-204
3750E
WST-23-1396
149
-53
231.6
453757
5435406
-207
4075E
WST-23-1398
185
20
123.5
453442
5435275
-97
3725E
WST-23-1406
168
-26
102.6
453179
5435127
174
3425E
WST-23-1410
143
-10
111.3
453279
5435248
-145
3575E
WST-23-1414
161
-18
201.6
453259
5435210
97
3525E
WST-23-1416
173
24
117.3
453442
5435276
-97
3725E
WST-23-1419
123
4
108.4
453446
5435277
-98
3725E
WST-23-1422
179
-8
210.4
453443
5435339
-204
3750E
WST-23-1424
176
-7
210.3
453443
5435339
-204
3750E
WST-23-1425
172
-3
210.2
453443
5435339
-204
3750E
WST-23-1426
168
-12
201.4
453443
5435339
-205
3750E
WST-23-1427
164
6
84.6
453645
5435346
-187
3950E
WST-23-1429
153
15
126.4
453646
5435346
-186
3950E
WST-23-1430
152
29
129.4
453646
5435347
-186
3950E
WST-23-1432
165
1
102.5
453278
5435248
-144
3575E
WST-23-1441
112
-50
219.9
453759
5435409
-207
4075E
WST-23-1442
103
-53
480.3
453759
5435409
-207
4075E
WST-23-1443
162
3
186.6
453600
5435324
-179
3900E
WST-23-1444
145
5
168.5
453601
5435324
-179
3900E
WST-23-1445
129
-3
87.4
453602
5435325
-180
3900E
WST-23-1448
175
-17
114.5
453541
5435311
-172
3825E
WST-23-1450
181
-20
114.6
453541
5435311
-172
3825E
WST-23-1451
183
-29
111.7
453540
5435311
-172
3825E
WST-23-1453
140
29
120.4
453646
5435347
-185
3950E
WST-23-1455
140
14
105.6
453646
5435347
-186
3950E
WST-23-1456
129
12
111.6
453646
5435347
-186
3950E
WST-23-1457
129
24
117.6
453646
5435347
-186
3950E
WST-23-1458
130
29
123.2
453646
5435347
-185
3950E
WST-23-1465
180
26
150.4
453278
5435248
-143
3575E
WST-23-1466
183
22
141.4
453278
5435248
-143
3575E
WST-23-1467
182
17
144.6
453278
5435248
-144
3575E
WST-23-1468
180
12
114.2
453278
5435248
-144
3575E
WST-23-1470
172
19
114.5
453443
5435276
-97
3725E
WST-23-1471
126
3
174.4
453602
5435325
-179
3900E
WST-23-1472
129
11
90.4
453602
5435325
-179
3900E
WST-23-1473
130
18
93.4
453601
5435325
-179
3900E
WST-23-1474
135
24
90.4
453601
5435324
-178
3900E
WST-23-1475
107
-22
232.2
453760
5435409
-207
4075E
WST-23-1476
105
-27
232.1
453760
5435409
-207
4075E
WST-23-1478
180
-14
117.6
453541
5435311
-172
3825E
WST-23-1480
195
-9
120.6
453540
5435311
-172
3825E
WST-23-1482
193
-19
204.6
453541
5435311
-172
3825E
WST-23-1484
176
-7
138.2
453278
5435248
-145
3575E
WST-23-1485
173
-20
171.1
453278
5435248
-145
3575E
WST-23-1486
176
-14
177.2
453278
5435248
-145
3575E
WST-23-1487
115
-9
222.3
453506
5435326
-89
3800E
WST-23-1490
123
-3
162.4
453506
5435326
-88
3800E
WST-23-1491
160
8
165.6
453701
5435376
-196
4000E
WST-23-1492
160
4
159.5
453701
5435376
-196
4000E
WST-23-1494
160
-10
159.5
453700
5435375
-197
4000E
WST-23-1495
158
-14
160
453700
5435376
-197
4000E
WST-23-1496
159
-18
171.5
453700
5435376
-197
4000E
WST-23-1497
154
-21
189.6
453700
5435376
-197
4000E
WST-23-1500
168
-32
126.5
453259
5435210
96
3525E
WST-23-1501
167
-28
123.5
453259
5435210
96
3525E
WST-23-1503
183
-14
153.1
453278
5435248
-145
3575E
WST-23-1514
135
3
93
453601
5435325
-179
3900E
WST-23-1515
137
10
83
453601
5435324
-179
3900E
WST-23-1516
146
12
168.3
453601
5435324
-179
3900E
WST-23-1519
174
-11
201.2
453443
5435339
-205
3750E
WST-23-1520
170
-7
330.4
453443
5435339
-204
3750E
WST-23-1522
163
-1
150.4
453443
5435339
-204
3750E
WST-23-1523
164
-6
147.4
453443
5435339
-204
3750E
WST-23-1524
166
-10
195.4
453443
5435339
-205
3750E
WST-23-1525
162
-20
189.4
453443
5435339
-205
3750E
WST-23-1530
134
34
117.1
453646
5435346
-185
3950E
WST-23-1532
122
25
126.4
453647
5435347
-185
3950E
WST-23-1533
121
18
117.4
453647
5435347
-186
3950E
WST-23-1534
122
10
117.5
453647
5435347
-186
3950E
WST-23-1535
118
-2
83.9
453647
5435347
-187
3950E
WST-23-1538
171
-36
141.5
453259
5435210
96
3525E
WST-23-1541
177
-20
126.6
453258
5435210
97
3525E
WST-23-1542
140
-4
81.3
453601
5435324
-180
3900E
WST-23-1543
129
-12
75.4
453602
5435325
-180
3900E
WST-23-1549
126
-15
159.5
453506
5435326
-89
3800E
WST-23-1550
129
-15
156.5
453505
5435326
-89
3800E
WST-23-1555
189
21
144.2
453277
5435248
-143
3575E
WST-23-1557
182
12
99.4
453179
5435127
175
3425E
WST-23-1560
182
24
114.2
453179
5435127
176
3425E
WST-23-1575
132
-3
184.5
453646
5435347
-187
3950E
WST-23-1577
129
4
156.3
453647
5435347
-187
3950E
WST-23-1578
142
6
153.1
453646
5435347
-187
3950E
WST-23-1579
161
0
162
453700
5435375
-197
4000E
WST-23-1580
165
-2
177.6
453700
5435375
-197
4000E
WST-23-1581
169
-5
177.6
453700
5435375
-197
4000E
WST-23-1583
164
-13
150.5
453700
5435375
-197
4000E
WST-23-1585
156
-42
120.7
453179
5435127
173
3425E
WST-23-1591
143
1
180.5
453646
5435346
-187
3950E
WST-23-1592
143
-4
180.5
453646
5435347
-187
3950E
WST-23-1593
147
-7
168.5
453646
5435346
-187
3950E
WST-23-1596
141
-20
153.5
453646
5435347
-187
3950E
WST-23-1602
155
2
147.5
453444
5435339
-204
3750E
WST-23-1603
159
-1
147.6
453444
5435339
-204
3750E
WST-23-1604
162
-4
312.5
453444
5435339
-204
3750E
WST-23-1605
157
-5
144.6
453444
5435339
-204
3750E
WST-23-1606
159
-10
231.4
453444
5435339
-205
3750E
WST-23-1607
161
-10
288.5
453442
5435339
-205
3750E
WST-23-1608
142
-6
168.6
453321
5435227
104
3600E
WST-23-1614
170
-35
111.6
453600
5435324
-180
3900E
WST-23-1615
158
-39
108.6
453600
5435324
-181
3900E
WST-23-1616
148
-40
105.3
453601
5435324
-181
3900E
WST-23-1618
133
-32
105.5
453601
5435325
-180
3900E
WST-23-1619
133
-39
105.5
453601
5435325
-181
3900E
WST-23-1620
134
-44
117.2
453601
5435325
-181
3900E
WST-23-1631
165
-11
114.4
453542
5435311
-172
3825E
WST-23-1640
160
-23
156.6
453321
5435227
104
3600E
WST-23-1642
166
-19
132.6
453320
5435227
104
3600E
WST-23-1650
176
-15
75.3
453699
5435375
-197
4000E
WST-23-1652
170
-35
78.4
453700
5435375
-198
4000E
WST-23-1661
133
0
144.5
453322
5435228
105
3600E
WST-23-1662
137
4
165.6
453322
5435228
105
3600E
WST-23-1664
138
-4
165.4
453322
5435227
104
3600E
WST-23-1665
146
1
171.6
453321
5435227
105
3600E
WST-23-1673
151
-7
162.6
453646
5435346
-187
3950E
WST-23-1674
148
-2
156.5
453646
5435347
-187
3950E
WST-23-1675
149
3
177.4
453646
5435346
-187
3950E
WST-23-1676
150
7
159.5
453646
5435346
-186
3950E
WST-23-1677
148
11
159.5
453646
5435346
-186
3950E
WST-23-1678
155
-13
192.5
453443
5435339
-205
3750E
WST-23-1679
150
-13
177.2
453443
5435339
-205
3750E
WST-23-1680
150
-2
147.3
453444
5435339
-204
3750E
WST-23-1681
149
2
282.3
453444
5435339
-204
3750E
WST-23-1683
128
-2
174.5
453322
5435228
105
3600E
WST-23-1687
194
11
123.3
453277
5435248
-144
3575E
WST-23-1688
199
13
375.3
453277
5435248
-144
3575E
WST-23-1690
199
22
141.4
453277
5435248
-143
3575E
WST-23-1692
153
-35
422.8
453700
5435375
-198
4000E
WST-23-1693
159
-34
393.5
453257
5435209
96
3525E
WST-23-1695
144
-17
144.6
453504
5435325
-89
3800E
WST-23-1700
148
5
144.6
453504
5435325
-88
3800E
WST-23-1701
151
11
153.5
453504
5435325
-88
3800E
WST-23-1704
151
35
102.2
453646
5435347
-185
3950E
WST-23-1705
159
39
105.1
453645
5435346
-185
3950E
WST-23-1706
163
33
96.4
453645
5435346
-185
3950E
WST-23-1707
169
38
108.1
453645
5435346
-185
3950E
WST-23-1714
130
-53
198.1
453600
5435326
-181
3900E
WST-23-1715
132
-49
126.4
453601
5435326
-181
3900E
WST-23-1719
156
-18
291.3
453443
5435339
-205
3750E
WST-23-1720
153
-8
138.4
453443
5435339
-204
3750E
WST-23-1721
156
5
171.3
453443
5435339
-204
3750E
WST-23-1723A
139
-3
170.8
453322
5435228
104
3600E
WST-23-1736
154
-46
342.3
453543
5435312
-173
3825E
WST-23-1737
184
-3
210.5
453442
5435339
-204
3750E
WST-23-1741
157
13
165.6
453646
5435346
-186
3950E
WST-23-1742
160
9
171.4
453646
5435346
-186
3950E
WST-23-1743
159
4
165.4
453645
5435346
-187
3950E
WST-23-1745
153
-4
162.6
453646
5435346
-187
3950E
WST-23-1746
204
15
387.3
453277
5435248
-143
3575E
WST-23-1748
164
7
195.6
453503
5435325
-88
3800E
WST-23-1753
201
26
141.4
453277
5435248
-143
3575E
WST-23-1756
146
-2
171.5
453322
5435227
104
3600E
WST-23-1760
148
-15
348.6
453646
5435346
-187
3950E
WST-23-1768
152
-40
198.4
453279
5435248
-145
3575E
WST-23-1769
149
-45
351.3
453543
5435312
-173
3825E
WST-23-1775
152
1
174.5
453321
5435227
105
3600E
WST-23-1781
140
-7
153.3
453444
5435339
-205
3750E
WST-23-1782
145
-9
144.5
453444
5435339
-204
3750E
WST-23-1783
150
-11
141.2
453444
5435339
-205
3750E
WST-23-1786
161
-40
189.4
453279
5435248
-145
3575E
WST-23-1788
165
-32
153.7
453278
5435248
-145
3575E
WST-23-1789
126
-3
177.1
453323
5435236
55
3600E
WST-23-1793
131
-10
165.5
453323
5435236
55
3600E
WST-23-1794
127
-13
168.5
453323
5435236
55
3600E
WST-23-1796
171
-32
156.6
453278
5435248
-145
3575E
WST-23-1810
134
-19
168.5
453323
5435236
55
3600E
WST-23-1812
135
-8
165.6
453323
5435236
55
3600E
WST-23-1829
140
-23
165.5
453323
5435236
54
3600E


Lynx Zone
Mineralization occurs as grey to translucent quartz-carbonate-pyrite-tourmaline veins and pyrite replacement zones and stockworks. Vein-type mineralization is associated with haloes of pervasive sericite-pyrite ± silica alteration and contain sulphides (predominantly pyrite with minor amounts of chalcopyrite, sphalerite, galena, arsenopyrite, and pyrrhotite) and local visible gold. Replacement mineralization is associated with strong pervasive silica-sericite-ankerite ± tourmaline alteration and contains disseminated pyrite from trace to 80% with local visible gold. Pyrite stockworks can form envelopes that reach several tens of metres thick. Fuchsite alteration is common and is spatially constrained to near the gabbros. Mineralization occurs at or near geological contacts between felsic porphyritic or fragmental intrusions and the host rhyolites or gabbros and locally can be hosted along the gabbro-rhyolite contact.

Qualified Person
The scientific and technical content of this news release has been reviewed, prepared, and approved by Ms. Isabelle Roy, P.Geo. (OGQ 535), Director of Technical Services for Osisko's Windfall gold project, who is a "qualified person" as defined by National Instrument 43-101 – Standards of Disclosure for Mineral Projects ("NI 43-101").

Quality Control and Reporting Protocols
True width determination is estimated at 55-80% of the reported core length interval for the zone. Assays are uncut except where indicated. Intercepts occur within geological confines of major zones but have not been correlated to individual vein domains at this time. Reported intervals include minimum weighted averages of 3.5 g/t Au diluted over core lengths of at least 2.0 metres. NQ core assays were obtained by either 1-kilogram screen fire assay or standard 50-gram fire-assaying-AA finish or gravimetric finish at (i) ALS Laboratories in Val d'Or, Québec, Vancouver, British Colombia, Lima, Peru or Vientiane, Laos (ii) Bureau Veritas in Timmins, Ontario. The 1-kilogram screen assay method is selected by the geologist when samples contain coarse gold or present a higher percentage of pyrite than surrounding intervals. Selected samples are also analyzed for multi-elements, including silver, using a Four Acid Digestion-ICP-MS method at ALS Laboratories. Drill program design, Quality Assurance/Quality Control ("QA/QC") and interpretation of results is performed by qualified persons employing a QA/QC program consistent with NI 43-101 and industry best practices. Standards and blanks are included with every 20 samples for QA/QC purposes by the Corporation as well as the lab. Approximately 5% of sample pulps are sent to secondary laboratories for check assay.

About the Windfall Gold Deposit
The Windfall gold deposit is located between Val-d’Or and Chibougamau in the Abitibi region of Québec, Canada. The mineral resource estimate on Windfall (with an effective date of June 7, 2022 ) (the “Windfall Resource Estimate”) and the mineral reserve estimate on Windfall (with an effective date of November 25, 2022) (the “Windfall Reserve Estimate”) are described in the technical report entitled “Feasibility Study for the Windfall Project, Eeyou Istchee James Bay, Québec, Canada” (the “FS Technical Report”) and dated January 10, 2023 (with an effective date of November 25, 2022). The Windfall Resource Estimate, assuming a cut-off grade of 3.50 g/t Au, comprises 811,000 tonnes at 11.4 g/t Au (297,000 ounces) in the measured mineral resource category, 10,250,000 tonnes at 11.4 g/t Au (3,754,000 ounces) in the indicated mineral resource category and 12,287,000 tonnes at 8.4 g/t Au (3,337,000 ounces) in the inferred mineral resource category. The Windfall Mineral Reserve, assuming 3.5 g/t operating, 2.5 g/t incremental, and 1.7 g/t development cut-off grade, comprises 12,183,000 tonnes at 8.06 g/t Au (3,159,000 ounces) in the probable mineral reserves category. The key assumptions, parameters, limitations and methods used in the feasibility study for Windfall, including the related Windfall Resource Estimate and Windfall Reserve Estimate, are described in the FS Technical Report, which was prepared in accordance with National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”). The FS Technical Report is available on SEDAR+ (www.sedarplus.com) under Osisko’s issuer profile. The Windfall gold deposit is currently one of the highest-grade resource-stage gold projects in Canada and has world-class scale. Mineralization occurs in three principal areas: Lynx, Main, and Underdog. Mineralization is generally comprised of sub-vertical lenses following intrusive porphyry contacts plunging to the northeast. The resources are defined from surface to a depth of 1,600 metres, including the Triple 8 (TP8) zone. The reserves are defined from surface to a depth of 1,100 metres. The deposit remains open along strike and at depth. Mineralization has been identified at surface in some areas and as deep as 2,625 metres in others with significant potential to extend mineralization down-plunge and at depth.

About Osisko Mining Inc.
Osisko is a mineral exploration company focused on the acquisition, exploration, and development of precious metal resource properties in Canada. Osisko holds a 50% interest in the high-grade Windfall gold deposit located between Val-d’Or and Chibougamau in Québec and holds a 50% interest in a large area of claims in the surrounding Urban Barry area and nearby Quévillon area (over 2,300 square kilometers).

Cautionary Note Regarding Forward-Looking Information
This news release contains “forward-looking information” within the meaning of the applicable Canadian securities legislation that is based on expectations, estimates, projections and interpretations as at the date of this news release. Any statement that involves predictions, expectations, interpretations, beliefs, plans, projections, objectives, assumptions, future events or performance (often, but not always, using phrases such as “expects”, or “does not expect”, “is expected”, “interpreted”, “management’s view”, “anticipates” or “does not anticipate”, “plans”, “budget”, “scheduled”, “forecasts”, “estimates”, “potential”, “feasibility”, “believes” or “intends” or variations of such words and phrases or stating that certain actions, events or results “may” or “could”, “would”, “might” or “will” be taken to occur or be achieved) are not statements of historical fact and may be forward-looking information and are intended to identify forward-looking information. This news release contains the forward-looking information pertaining to, among other things: the Windfall gold deposit being one of the highest-grade resource-stage gold projects in Canada and having world-class scale; the expected timing (if at all) to hook-up the power line; the expected allocation of power under the power allocation agreement being realized (if any); the expected power demand for Windfall; the assumptions limitations and qualifications in the FS Technical Report, including relating to the Windfall Resource Estimate and Windfall Reserve Estimate; reliance on third-parties for infrastructure, including power lines, with reference to the agreement with Miyuukaa for the transmission of hydroelectric power to the Windfall site; the results of the FS Technical Report, including NPV, IRR, production, tax-free cash flows, capex, AISC, milling operations, average recovery, job creation; the Lynx zone remaining open to expansion down plunge. Such factors include, among others, risks relating to the ability of exploration activities (including drill results) to accurately predict mineralization; reliance on third-parties, including governmental entities, for mining activities, including for infrastructure; the timing and ability, if at all, to obtain permits; the reliance on third-parties for infrastructure critical to build and operate the Windfall project, including power lines; our ability to obtain power for the Windfall project, if at all or on terms economic to the Corporation; the status of third-party approvals or consents; errors in management’s geological modelling; the ability of Osisko to complete further exploration activities, including (infill) drilling; property and royalty interests in the Windfall gold deposit; the ability of the Corporation to obtain required approvals; the results of exploration activities; risks relating to mining activities; the Canadian/United States dollar exchange rate; the global economic climate; metal (including gold) prices; dilution; environmental risks; and community and non-governmental actions. For additional information with respect to these and other factors and assumptions underlying the forward-looking information in this news release, please see the section entitled “Risk Factors” in the most recent annual information form of Osisko for the year ended December 31, 2022, a copy of which is available on SEDAR+ (www.sedarplus.com) under Osisko’s issuer profile. Although the forward-looking information contained in this news release is based upon what management believes, or believed at the time, to be reasonable assumptions, Osisko cannot assure shareholders and prospective purchasers of securities of the Corporation that actual results will be consistent with such forward-looking information, as there may be other factors that cause results not to be as anticipated, estimated or intended, and neither Osisko nor any other person assumes responsibility for the accuracy and completeness of any such forward-looking information. Osisko does not undertake, and assumes no obligation, to update or revise any such forward-looking statements or forward-looking information contained herein to reflect new events or circumstances, except as may be required by law.

CONTACT INFORMATION:
John Burzynski
Chief Executive Officer
Telephone (416) 363-8653


Stock Information
Company Name: Osisko Mining Inc.
Stock Symbol: OSK:CC
Market: TSXC
Website: osiskomining.com
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