Eagle Plains Completes Work at Newly Assembled Hearne Hill South Project in Highly Prospective Babine Copper-Gold Porphyry District
Eagle Plains Completes Work at Newly Assembled Hearne Hill South Project in
Highly Prospective Babine Copper-Gold Porphyry District
Cranbrook, B.C., October 09th, 2025: Eagle Plains Resources Ltd. (TSX-V:EPL) (OTCQB:
EGPLF) (“EPL” or “Eagle Plains”) is pleased to announce that field work has recently been completed
on the newly assembled Hearne Hill South Copper-Gold Porphyry Project, located approximately 70 km
NE of Smithers, British Columbia. The 4656 ha, road -accessible property is located in the highly
prospective Babine Porphyry district, which includes the past-producing Bell and Granisle mines. The
project is 100% owned by Eagle Plains with no underlying royalties or encumbrances.
Highlights:
• Located in the prolific Stikine Terrane, proximal to past producing mines and
developed prospects
• Road accessible with nearby hydro transmission lines
• Under-explored geophysical anomalies consistent with prospective intrusive geology
See Hearne Hill South Property Information and Map here
2025 Work Program
Eagle Plains has recently completed over 32-line kilometres of soil geochemical sampling at the Hearne
Hill South Project. Samples were collected at ~50m spacing on east/west oriented lines between 200m
and 800m apart. The survey was designed to be reconnaissance in scale with the goal of identifying and
prioritizing targets for future exploration. 12 rock samples were collected during the program including
a grab sample (LWHHR001) from outcrop consisting of very fine-grained granodiorite exhibiting
malachite stain ing on fracture surfaces and mineralized with chalcopyrite, both as fracture fill and
disseminations. The sample displays pervasive chlorite alteration with veinlets of epidote and specular
hematite. In late January 2025 the company also completed a high-resolution airborne magnetic survey
with Precision GeoSurveys Inc. consisting of 286 -line kilometres at 100m spacing. Analytical results
and interpretation of the 2025 work are pending. All work was designed and executed by TerraLogic
Exploration Inc. of Cranbrook, British Columbia.
“We are very pleased to have assembled a significant land position in such an endowed porphyry district
in just a couple of years.” said Jesse Campbell, Vice President of Exploration. “ The Hearne Hill South
Project is another example of our corporate goal to increase porphyry copper and gold discovery
exposure in our generative portfolio. We are eagerly anticipating results and interpretation from the 2025
work program. I commend the TerraLogic crew on their ability to efficiently execute the work and to
identify new mineralization in the first field program.”
Geology
The Hearne Hill South property is located in the Stikine Terrane within the Babine Porphyry Belt
consisting of primarily Late -Triassic (Takla Group) and Early -Jurassic (Hazelton Group) marine
volcanic, volcaniclastic and sedimentary rocks and Tertiary and Cretaceous age intrusions. Economic
metal deposits have been associated with rocks from each of these intrusive events . R egionally, the
Eocene age Babine Igneous Suite is the most prospective for porphyry copper mineralization .
Significant mineralization has been recognized in two main forms: (1) stockwork porphyry copper and
molybdenum mineralization typical of that associated with biotite-feldspar porphyry (BFP) intrusions in
the Babine; and (2) breccia pipes containing higher grade copper and gold that form the core of the
Hearne Hill porphyry deposit. Within the porphyry style hydrothermal system, the BFP intrusions and
to a lesser degree the intruded Hazelton volcanic rocks, host chalcopyrite, pyrite, bornite, and minor
molybdenite within quartz veinlets, fracture fill and disseminations. Strong biotite and quartz -sericite
alteration is associated with mineralization, with potassic alteration associated with the best grades.
Regional Exploration Activity
In recent years exploration activity has significantly increased in the Babine Porphyry district with
Amarc Resources and partner Boliden exploring their Duke Project ($10M budget for 2025 1) and
American Eagle Gold drilling their NAK project with 30,000m planned for 2025 2. In November 2024
South32 took a 19.9% interest in American Eagle Gold at a cost of US$22 million to support further
drilling at NAK3.
Rock grab samples are selective samples by nature and as such are not necessarily representative of the
mineralization hosted across the property. Some of the above results were taken directly from MINFILE
descriptions and assessment reports (ARIS) filed with the BC government. Management cautions that
historical results were collected and reported by past operators and have not been verified nor
confirmed by a Qualified Person but form a basis for ongoing work on the subject properties.
Management cautions that past results or discoveries on proximate land are not necessarily indicative
of the results that may be achieved on the subject properties.
Technical information in this News Release has been reviewed and approved by C.C. Downie, P.Geo.,
a director and officer of Eagle Plains, hereby identified as the “Qualified Person” under N.I. 43-101.
References
1Amarc Resources Ltd. Amarc Launches $10 Million 2025 Duke Copper -Gold District Drilling: Provides District Update.
July 2, 2025. https://amarcresources.com/news-releases/amarc-launches-10-million-2025-duke-copper-gold-district-
drilling-provides-district-update/
2American Eagle Gold. American Eagle Secures 100% Ownership of the NAK Copper-Gold Porphyry Project in BC. March
13, 2025. https://americaneaglegold.ca/news/american-eagle-secures-100-ownership-of-the-nak-copper-gold-porphyry-
project-in-bc/
3South32. South32 Invests in American Eagle Gold. November 11, 2024. https://www.south32.net/docs/default-
source/media-releases/south32-invests-in-american-eagle-gold.pdf?sfvrsn=3f580f4f_1
About Eagle Plains Resources
Based in Cranbrook, B.C., Eagle Plains is a well -funded, prolific project generator that continues to
conduct research, acquire and explore mineral projects throughout western Canada, with a focus on
critical metals integral to an increasingly electrified, decarbonized economy.
The Company was formed in 1992 and is the ninth -oldest listed issuer on the TSX -V (and one of only
three that has not seen a roll -back or restructuring of its shares). Eagle Plains has continued to deliver
shareholder value over the years and through numer ous spin outs has transferred over $100,000,000 in
value directly to its shareholders, with Copper Canyon Resources and Taiga Gold Corp. being notable
examples. Eagle Plains latest spinout, Eagle Royalties Ltd. (CSE:“ER”) was listed on May 24, 2023,
and holds a diverse portfolio of royalty assets throughout western Canada.
On October 2, 2024, Eagle Plains announced the formation of a separate division within the Company
that will give Eagle Plains’ shareholders direct exposure to strategic opportunities in Canadian green
energy transition. As a wholly owned subsidiary of Eagle Plains, Osprey Power Inc. (“OP”) will focus
on identifying and advancing innovative and diverse clean energy project portfolios in target markets
throughout Canada, with an initial focus on Western Canada.
Eagle Plains’ core business is acquiring grassroots critical - and precious-metal exploration properties.
The Company is committed to steadily enhancing shareholder value by advancing our diverse portfolio
of projects toward discovery through collaborative partnerships and development of a highly
experienced technical team.
Expenditures from 2010-2023 on Eagle Plains-related projects exceed $39M, the majority of which was
funded by third-party partners. This exploration work resulted in approximately 50,000m of diamond -
drilling and extensive ground-based exploration work facilitating the advancement of numerous projects
at various stages of development.
Throughout the exploration process, our mission is to help maintain prosperous communities by
exploring for and discovering resource opportunities while building lasting relationships through honest
and respectful business practices.
On behalf of the Board of Directors of Eagle Plains
“C.C. (Chuck) Downie, P.Geo”
President and CEO
For further information on EPL, please contact Mike Labach at 1 866 HUNT ORE (486 8673)
Email: [email protected] or visit our website at https://www.eagleplains.com
Cautionary Note Regarding Forward-Looking Statements
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
release. This news release may contain forward-looking statements including but not limited to
comments regarding the timing and content of upcoming work programs, geological interpretations,
receipt of property titles, potential mineral recovery processes, etc. Forward-looking statements
address future events and conditions and therefore, involve inherent risks and uncertainties. Actual
results may differ materially from those currently anticipated in such statements.