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Cascadia Completes Drill Program at its Carmacks Copper-Gold Project, Yukon

Exploration Programs

Cascadia Completes Drill Program at its

Carmacks Copper-Gold Project, Yukon

VANCOUVER, BC

,

Oct. 16, 2025

/CNW/ - Cascadia Minerals Ltd. ("

Cascadia

") (TSXV: CAM)

(OTCQB: CAMNF) is pleased to announce the completion of its fall 2025 diamond drill program at

the road-accessible Carmacks Project in central

Yukon

.

Copper Mineralization (CNW Group/Cascadia Minerals Ltd.)

Highlights

Copper mineralization encountered in 10 of 11 holes drilled

in 2025

at the Carmacks

Deposit;

2025 diamond drilling comprised

3,847.95 m

in 11 holes

, targeting expansion of sulphide

resources (

Figures 1

,

2

);

Carmacks Deposit hosts a

Measured and Indicated Resource containing 651 Mlbs copper

and 302 koz gold

(36.3 Mt @ 0.81% copper and 0.26 g/t gold or 1.07% copper equivalent);

and

Planning underway for a

minimum

15,000 m

drill program in 2026

, targeting further step-outs

on the sulphide resources, and testing regional targets including Zone A (

22.86 m

of 2.27%

copper with 2.20 g/t gold in hole 80-18), and Zone 14 (

16.37 m

of 1.04% copper in hole WC-

140).

"We're very pleased by the results of our 2025 drill program, with 10 of 11 holes intersecting

sulphide mineralization on resource expansion targets. Our team has done a fantastic job,

completing our first drill program only two months after the close of our acquisition of the

Carmacks Project,"

said

Graham Downs

, Cascadia's President and CEO.

"This season's work

confirms the potential for continued resource growth at

Carmacks

, where the resource remains

open along strike and at depth. In addition to follow-up drilling at the main deposit in 2026, we see

excellent opportunities to build resources at other known zones and make new discoveries

throughout the extensive property package."

Figure 1 –

Carmacks

2025 Drill Plan Map

Figure 2 – Carmacks Main Deposit Long Section

Figure 3 – CD-25-033 Core Photos

Figure 4 – CD-25-038 Core Photos

Figure 5 – CD-25-040 Core Photos

Figure 6 – Carmacks Regional Overview

Exploration Update

Crews mobilized to site on

September 8

th

, with the first drill arriving on

September 13

th

and a

second drill on

September 20

th

. Drilling was completed on

October 10

th

, with a total of

3,847.95

metres drilled in 11 holes

(

Figures 1

,

2

). Drilling focused on step-out holes at the Carmacks Main

Deposit, with the goal of expanding sulphide resources. Crews remain on-site finishing logging and

sampling the drill core. Initial assays are anticipated in early November, however there continue to

be significant backlogs at the assay laboratories. The following table provides an overview of the drill

holes completed in 2025 and their current processing status:

Zone

Hole Name

End-of-Hole Depth (m)

Azimuth (°)

Dip (°)

Status

147

CD-25-030

408.43

247.5

-60.8

Assay Prepped

CD-25-031

354.18

248.0

-56.3

Assay Prepped

CD-25-033

440.44

250.0

-65.7

Assay Prepped

CD-25-037

478.54

244.2

-61.3

Awaiting Prep

1213

CD-25-032

208.18

244.3

-58.8

Awaiting Prep

CD-25-034

202.69

244.6

-50.3

Awaiting Prep

CD-25-035

222.20

247.2

-73.4

Awaiting Prep

CD-25-036

282.40

244.4

-70.3

Logging Underway

CD-25-038

315.47

248.1

-60.2

Logging Underway

2000S

CD-25-039*

458.72

236.8

-60.2

Logging Underway

CD-25-040

438.91

61.1

-60.2

Logging Underway

* Note: Hole CD-25-039 diverged slightly when reducing, resulting in re-drill of 37.79 m of the top of hole, which is included in the total meterage calculation.

The drilling program tested extensions of known mineralization both along strike and down-dip

through a series of step-out holes, targeting open areas within the sulphide resource.

Comprehensive structural data were collected from oriented drill core for the first time at the

deposit, providing valuable information to enhance geological modelling. Sulphide mineralization was

observed in 10 of the 11 holes completed this year and appears consistent with that intersected in

previous drilling campaigns. Mineralization occurs within migmatized amphibolite and bedded mafic

volcanic rocks, characterized by disseminated and foliation-parallel bands of chalcopyrite and

bornite, which locally make up a significant proportion of the rock. These mineralized rafts are

hosted within coarse-grained diorite and granodiorite of the Granite Mountain Batholith. Examples of

mineralization can be seen in core photos from Hole CD-25-033 (

Figure 3

), CD-25-038 (

Figure 4

),

and CD-25-040 (

Figure 5

).

Planning is already underway for a significantly expanded 2026 exploration program, with a minimum

of

15,000 m

of diamond drilling. Continued drilling at the Carmacks Main Deposit will build on this

year's success, testing further down-dip and on-strike extensions of the three major zones. Drilling in

2026 will also advance multiple near-deposit zones that lie outside the resource, including Zone 14

(WC-140:

16.37 m

of 1.04% copper with 0.09 g/t gold) and the Gap Zone (CRM24-027:

3.70 m

of

0.94% copper with 0.12 g/t gold and

21.25 m

of 0.53% copper) (

Figure 1

), and will evaluate multiple

untested geophysical targets within 1 km of the Carmacks Main Deposit.

A broader regional program is also being planned to evaluate numerous historical targets across the

177 km

2

Carmacks

property, which covers a significant portion of the Minto Copper Belt (

Figure 6

).

A key priority will be follow-up drilling at Zone A, which returned

22.86 m

of 2.27% copper with 2.20

g/t gold in drilling completed in 1980.

Carmacks Project Overview

Cascadia's 177 km

2

Carmacks Project is located 35 km southeast of the past producing Minto Mine,

which was recently acquired by Selkirk Copper Mines Inc. The Carmacks Project is road-accessible,

via a 13 km access road which extends from the government-maintained Freegold Road northwest

of

Carmacks

in central

Yukon

. The project has an existing 40-person camp, numerous roads

throughout the property, and is 10 km from grid power.

The Carmacks Project covers a large portion of the Minto Copper Belt, a 180 km x 60 km belt of

intrusion-related copper-gold-silver deposits. This belt is within the Stikine Terrane, which extends

into

Yukon

from

British Columbia

, and is characterized by Late Triassic to early Jurassic volcanic-

plutonic arc complexes that are well-endowed with copper-gold-molybdenum porphyries including the

Red Chris, Schaft Creek, Kemess, KSM and Galore Creek deposits and mines.

The Carmacks Main Deposit has a Measured and Indicated Resource containing 651 Mlbs of

copper and 302 koz of gold (36.3 million tonnes grading 0.81 % copper, 0.26 g/t gold, and 3.23 g/t

silver and 0.01% molybdenum) or 1.07% copper equivalent. A 2023 preliminary economic

assessment demonstrated positive economic potential, with a

$230.4 M

post-tax NPV

(5%)

and 29%

post-tax IRR at

US$3.75

/lb copper and

US$1,800

/oz gold. A second case evaluated at

$4.25

/lb

copper and

$2,000

/oz gold returned a

$330.1 M

post-tax NPV

(5%)

and 38% after-tax IRR.

The Carmacks Main Deposit is comprised of three zones, the 147, 2000S and 1213, all of which

remain open to expansion along strike and at depth. Historical drilling at the deposit focused

primarily on oxide copper mineralization, and numerous holes were ended when sulphide

mineralization was encountered. The 1213 Zone in particular hosts very shallow sulphide

mineralization that has seen limited drilling.

Cascadia is in the process of compiling historical geophysical and geochemical data to fully

understand the significant regional potential present at the Carmacks Project. Numerous historical

targets will be evaluated in future work programs, including Zone A, where drilling in 1980 returned

13.72 m

of 3.18% copper with 2.01 g/t gold (80-09) and

22.86 m

of 2.27% copper with 2.20 g/t

gold (80-18).

About Cascadia

Cascadia's flagship asset is the Carmacks Project in the high-grade Minto Copper Belt in

Yukon

Territory, Canada

.

Cascadia also has a pipeline of discovery stage copper-gold properties throughout the Yukon Stikine

Terrane including its Catch Property, which hosts a copper-gold porphyry discovery where inaugural

drill results returned broad intervals of mineralization (

116.60 m

of 0.31% copper with 0.30 g/t gold).

Catch exhibits extensive high-grade copper and gold mineralization across a 5 km long trend, with

rock samples returning peak values of 3.88% copper, 1,065 g/t gold, and 267 g/t silver.

QA/QC

The Mineral Resources and economic analysis disclosed here are referenced from the 2023

Technical Report on the Carmacks Project Preliminary Economic Assessment, authored by SGS

Canada Inc. Pricing for the Carmacks Project PEA base case economic analysis was US

$3.75

/lb

copper, US

$1,800

/oz gold, and US

$22

/oz silver at an exchange rate of

$1

:

US$0.75

. The results of

the

Carmacks

preliminary economic assessment are preliminary in 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. Estimated true widths vary but

are expected to be typically 60-70% of the intersected widths.

Results referenced in this release represent highlights only. Below detection values for gold, copper,

silver and molybdenum have been encountered in drilling, soil and rock samples in these target

areas. Readers are cautioned that assay results have not yet been received for 2025 drilling, and

the mineralization described in this release will not necessarily grade the same as previous drilling.

Copper equivalent value assumes metal prices of

$3.75

/lb copper,

$2,000

/oz gold,

$25

/lb silver,

$12

/lb molybdenum, and recoveries of 82% for copper, 70% for gold, 69% for silver, and 70% for

molybdenum.

The technical information in this news release has been approved by

Thomas Hawkins

, P.Geo., VP

Exploration for Cascadia and a qualified person for the purposes of National Instrument 43-101.

NEITHER THE TSX VENTURE EXCHANGE NOR ITS REGULATION SERVICES PROVIDER (AS

THAT TERM IS DEFINED IN THE POLICIES OF THE TSX VENTURE EXCHANGE) ACCEPTS

RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THIS NEWS RELEASE.

Cautionary note regarding forward-looking statements:

This press release may contain "forward-looking information" within the meaning of applicable

securities laws. Readers are cautioned to not place undue reliance on forward-looking information.

Actual results and developments may differ materially from those contemplated by these

statements. The statements in this press release are made as of the date of this press release.

Cascadia undertakes no obligation to update forward-looking information, except as required by

securities laws.

SOURCE

Cascadia Minerals Ltd.

View original content to download multimedia:

http://www.newswire.ca/en/releases/archive/October2025/16/c3907.html

%SEDAR: 00057245E

For further information:

For further information, please contact: Andrew Carne, M.Eng., P.Eng.,

VP Corporate Development, Cascadia Minerals Ltd., T: 604-688-0111 ext. 106,

[email protected]

CO: Cascadia Minerals Ltd.

CNW 08:00e 16-OCT-25