Drilling on south side of resource pit extends mineralization by 600 metres
- 3.41 gpt over 17.3m; 1.42 gpt over 17.0m;
- 1.71 gpt over 19.1m, 11.41 gpt over 1.7m and 1.15 gpt over 12.9m;
- 3.56 gpt over 21.0m and, 2.29 gpt over 4.0m;
- 2310.00 gpt over 1.0m, 2.09 gpt over 9.3m, 6.52 gpt over 4.2m and 2.01 gpt over 14.0m;
- 195.00 gpt over 0.6m, 1.98 gpt over 18.7m; 11.31 gpt over 6.7m including 214.00 gpt over 0.3m;
- 46.20 gpt over 1.0m, and 0.81 gpt over 14.6m;
- 6.80 gpt over 5.0m and 3.75 gpt over 5.0m;
- 56.50 gpt over 1.1m and 3.93 gpt over 5.0m;
- 1.48 gpt over 22.0m, and 1.75 gpt over 14.9m;
- 11.63 gpt over 9.0m, including 93.40 gpt over 1.0m, 1.40 gpt over 7.5m.
Drilling¹ on north side of resource pit continues to confirm and identify new mineralization within and to north of current resource²
- 331.0 gpt over 0.3m, 19.56 gpt over 6.1m including 279.00 gpt over 0.4m, 51.60 gpt over 2.0m;
- 72.54 gpt over 5.9m including 1400.00 gpt over 0.3m; 2.19gpt over 13.5m;
- 5.28 gpt over 11.0m including 83.10 gpt over 0.3m; 2.42 gpt over 10.9m;
- 17.92 gpt over 3.7m including 71.20 gpt over 0.8m; 5.48 gpt over 7.0m;
- 3.48 gpt over 9.1m including 28.20 gpt over 0.8m,1.48 gpt over 9.0m, 3.87 gpt over 7.0m;
- 2.34 gpt over 14.3m and 51.87 gpt over 1.8m;
- 140.28 gpt over 2.6m, including 1170.00 gpt over 0.3m.
New resource estimate remains on track for Q1 2027
- All assays are reported uncut.
asserted
assays → extend → Q1
- Intervals are reported using core lengths only as true widths are not known at this time.
- In this news release, “gpt” refers to grams per tonne, and “m” refer to metres.
TORONTO, Oct. 20, 2026 (GLOBE NEWSWIRE) —
asserted
m → report → metres
Discovery Mining Ltd. (TSX: DSV, OTCQX: DSVSF) (“Discovery” or the “Company”) today reported results from ongoing exploration at the Company’s advanced stage growth project at Dome.
asserted
Ltd. → report → Dome
The results, which include assays from a combined total of 36 holes1 (16,365.4 m) continued to expand mineralization, indicated excellent correlation of widths and grades to previous drilling and clearly demonstrated the upside that exists at the project.
asserted
that → include → project
Tony Makuch, Discovery’s President, CEO and Chairman, commented: “The high-grade intersections reported today further demonstrate the tremendous potential that exists for Dome Mine to resume operations as a large-scale, long-life open-pit mining operation.
asserted
Mine → comment → operation
The results identify new areas of mineralization that support our view that we can expand the open pit and significantly grow our resource base.
asserted
we → identify → base
Particularly encouraging were high-grade intersections that extend the mineralization 600 m to the south of the current resource pit.
asserted
that → extend → pit
The mineralized zones identified follow the trend of the Dome Fault and remain open to the west along the fault that extends through the neighbouring Paymaster property.
asserted
that → identify → property
Also encouraging were a number of shallow intersections in new zones identified to the north of the main mineralization.
asserted
number → identify → mineralization
“As with recent exploration success at our Pamour mine, the drill results at Dome clearly demonstrate the potential for a much larger open-pit operation than was previously envisioned, with the opportunity existing for further expansion of mineralization to the north, south and west.
asserted
opportunity → demonstrate → north
Based on the upside that exists, we are now re-
asserted
we → base → upside
“Work to update the current 11.0 million ounce inferred mineral resource at Dome is progressing well and remains on track for release as part of a technical report for our Porcupine operations early in 2027.”
The 36 holes reported today from the Dome project were from two main areas, including the north side of the current mineral resource pit and the south side of the pit near the former Preston and New York Porcupine properties (Figure 1).
asserted
holes → update → properties
Geologically, the mine is located on the south limb of the Porcupine Syncline and is just north of the Destor Porcupine Fault.
asserted
mine → locate → Fault
Mineralization in the current open-pit resource extends from surface to a maximum depth of approximately 730 m, with additional mineralization in multiple zones extending to a further depth of approximately 1,600 m.
The current mineral resource at Dome includes 222.3 million tonnes with an average grade of 1.49 gpt for a total of 11.0 million ounces in the Inferred resource category.
asserted
resource → extend → category
The resource assumes a large-scale, open-pit concept to expand the historic pit along strike and to depth.
asserted
resource → assume → depth
A key objective of the 2026 drilling program is the completion of a new mineral resource estimate, to be released in early 2027.
asserted
objective → release → 2027
The 2026 work program also includes further evaluations of data and mineralization models to upgrade portions of the resource to the Indicated resource category, and to evaluate the potential for future underground mining at Dome.
asserted
program → include → Dome
Drilling on the south side of the resource pit included 22 holes (7,188.0 m) to evaluate mineralization between the south edge and up to 600 m southwards along the projected trend of the Dome Fault and contained multiple holes with excellent grades and widths.
asserted
Drilling → include → grades
Significant results include: 3.41 gpt over 17.3m and 1.42 gpt over 17.0m in hole DOM26-046; 1.71 gpt over 19.1m, 11.41 gpt over 1.7m, 1.15 gpt over 12.9m in hole DOM26-047; 3.56 gpt over 21.0m and 2.29 gpt over 4.0m in hole DOM26-044, 2.53 gpt over 6.0m, 2310.00 gpt over 1.0m, 2.09 gpt over 9.3m, 3.16 gpt over 3.7m, 6.52 gpt over 4.2m and 2.01 gpt over 14.0m in hole DOM26-048 and; 195.00 gpt over 0.6m, 46.20 gpt over 1.0m, 0.81 gpt over 14.6m, 1.98 gpt over 18.7m, and 11.31 gpt over 6.7m, including 214.00 gpt over 0.3m in hole DOM26-071; 6.80 gpt over 5.0m and 3.75 gpt over 5.0m in hole DOM26-042, which targeted between 100 and 300 meters south of the current resource pit, as well as 56.50 gpt over 1.1m and 3.93 gpt over 5.0m, in hole DOM26-049; 1.48 gpt over 22.0m, and 1.75 gpt over 14.9m, in hole DOM26-061A and; 1.40 gpt over 7.5m, 4.44 gpt over 3.0m, and 11.63 gpt over 9.0m, including 93.40 gpt over 1.0m in hole DOM26-063, which were drilled between 400 to 600 meters to the south (Table 1).
asserted
which → include → south
Based on current interpretations, the mineralized zones identified in the new drilling follow the trend of the Dome Fault and remain open to the west along the projected trace of the fault for a minimum 1.5 kms before the fault passes through the Paymaster #2 and #3 shaft area and converges with the Destor Porcupine Fault Zone.
asserted
fault → base → Zone
The Paymaster #2 and #3 shaft area is located on the Paymaster joint venture property which was recently acquired along with the Fuller Block from McEwen Mining Inc (see press release October 9, 2026).
asserted
which → locate → release
Drilling on the north side of the resource pit included 14 holes (9,177.4 m) and was also very successful with multiple holes obtaining significant intersections both within and on the north side of the current resource.
asserted
holes → include → resource
Significant results include 331.0 gpt over 0.3m, 19.56 gpt over 6.1m including 279.00 gpt over 0.4m and 51.60 gpt over 2.0m including 102.00 gpt over 1.0m in hole DOM26-019, 72.54 gpt over 5.9m including 1400.00 gpt over 0.3m, and 2.19 gpt over 13.5m in hole DOM26-052, 5.28 gpt over 11.0m including 83.10 gpt over 0.3m, 27.10 gpt over 0.5m, 5.48 gpt over 2.2m and 2.42 gpt over 10.9m in hole DOM26-054, 27.20 gpt over, 0.4m, 17.92 gpt over 3.7m including 71.20 gpt over 0.8m, and 5.48 gpt over 7.0m in hole DOM26-051, 9.90 gpt over 1.6m, 3.48 gpt over 9.1m including 28.20 gpt over 0.8m, 1.81 gpt over 9.0m, and 3.87 gpt over 7.0m in hole DOM26-056, 2.34 gpt over 14.3m and 51.87 gpt over 1.8m in hole DOM26-053, and 140.28 gpt over 2.6m including 1170.00 gpt over 0.3m in hole DOM26-058 (Table 1).
asserted
results → include → DOM26
Drilling at the project is continuing with two drills, one located in the southwest portion of the historic open pit and the other on the north side.
asserted
Drilling → continue → side
Work is also continuing to evaluate additional drill targets to the north, south and west sides of the pit.
asserted
Work → continue → pit
Considering results and progress to date, the project remains on track for the planned resource update early in 2027.
asserted
project → consider → 2027
Table 1. Intercepts from New Drilling at Dome Project1,2, 3
- All assays are reported uncut.
asserted
assays → report → Project1,2
- Intervals are reported using core lengths only as true widths are not known at this time.
asserted
widths → report → time
- Holes DOM26-055, 057, 068, 064, 040, 043, 045, 066 are not included in the table above as they have lower grade values.
asserted
they → include → values
Discovery’s exploration programs at the Porcupine Operations are conducted under the supervision of Eric Kallio, P.Geo., Executive Vice President, Exploration and Growth, Kara Byrnes, P.Geo, Vice President, Exploration and Geology – Porcupine and Steve Harding, P.Geo., Senior Geologist – Exploration Growth Projects.
asserted
programs → conduct → Kallio
Mr. Kallio, Ms. Byrnes and Mr. Harding are “qualified persons” for the purpose of National Instrument 43-101, Standards of Disclosure for Mineral Projects, of the Canadian Securities Administrators, and have reviewed and approved the scientific and technical information in this news release.
asserted
Kallio → review → release
Readers are referred to the mineral resource estimate as set out in the Company’s current technical report entitled “Porcupine Complex, Ontario, Canada NI 43-101 Report on Preliminary Assessment” with an effective date of January 13, 2025 (the “Technical Report”), which is available under the Company’s issuer profile on SEDAR+ at www.sedarplus.ca.
asserted
which → refer → www.sedarplus.ca
Statements concerning mineral resource estimates may also be deemed to constitute forward looking information to the extent that they involve estimates of the mineralization that will be encountered if the property is developed.
uncertain
property → concern → mineralization
The Technical Report includes the results of a preliminary economic assessment which is preliminary in nature.
asserted
which → include → nature
It includes inferred mineral resources that are considered too speculative geologically to have the economic considerations applied to them that would enable them to be categorized as mineral reserves and there is no certainty that the preliminary economic assessment will be realized.
asserted
assessment → include → reserves
The Company follows a quality assurance and control (“QA/QC”) program to ensure that sampling and analysis of all exploration work is conducted in accordance with best practices.
asserted
sampling → follow → practices
Core is logged and sampled in a secure facility at the Dome mine site and under supervision of Qualified Geologists.
asserted
Core → log → Geologists
The NQ sized drill core is predominantly sawn in half with one half of the core prepared for shipment, the other half of core retained for future assay verification.
asserted
half → size → verification
CRM standards, coarse blank material and duplicates are inserted every 20 samples.
asserted
standards → insert → ?
Core samples are picked up by Activation Laboratories at the Dome Mine core facility and tracked via a chain of custody from site to the lab for preparation and assaying.
asserted
samples → pick → preparation
…and 23 more, not listed.
The Aporia
