Golden Cariboo Validates and Enhances Gold Grade by 5.9% with PhotonAssay™ Results
GOLDEN CARIBOO RESOURCES LTD.
1100 - 1111 MELVILLE ST
VANCOUVER, B.C. CANADA V6E 3V6
TELEPHONE: 604-669-6463
GOLDENCARIBOO.com
CSE Stock Symbol GCC
Golden Cariboo Validates and Enhances Gold Grade by 5.9% with PhotonAssay™ Results
August 12, 2025
Vancouver, British Columbia, Canada – Golden Cariboo Resources Ltd. (the “Company”) (CSE:GCC)
(OTC:GCCFF) (WKN:A402CQ) (FSE:3TZ) announces that the reanalysis of hole QGQ24- 20 within the
Halo zone using PhotonAssay™ (“PA” or “photon”) technology has successfully verified gold intercepts
previously analyzed with traditional fire assay (“FA”) methods and produced an increase in gold grade,
with an overall 5.9% increase in grade for the entire hole. The hole returned 0.56 g/t Au by photon analysis
over the 475.4m core length from below overburden at 7.97m compared to 0.52 g/t Au from FA. The Halo
zone is situated on the Company’s Quesnelle Gold Quart z Mine property (the “Property”), located
approximately 4 kilometers (2.5 miles) northeast of Hixon, central British Columbia, Canada.
A comparison of the results from t he photon study on drill hole QGQ24-20 with the original FA results ,
reported earlier in a News Release dated February 25, 2025, is tabulated below using the original select
intervals. The photon study also yielded some longer intervals of higher grade such as 4.18 g/t Au over
28.95m from 82.05m, including 10.48 g/t Au over 8.07m from 85.93m.
Drill hole From
(m) To (m) Interval
(m)*
Interval
(ft)*
Au g/t
FA
Ag g/t
FA^
Au g/t
PA^^
%
Increase
QGQ24-20 20.12 362.08 341.96 1121.9 0.71 6.96 0.76 6.27
including 20.12 257 236.88 777.2 0.99 9.77 1.06 7.07
including 40.1 177.27 137.17 450 1.45 16.05 1.55 6.83
including 82.05 105.25 23.20** 76.1 4.61 86.26 4.94 7.35
including 82.05 94 11.95*** 39.2 7.36 164.95 7.46 1.33
including 85.93 90.22 4.29**** 14.1 16.35 9.09 16.43 0.53
including 92 94 2 6.1 6.36 957.00 6.53 2.67
and including 126 128 2 6.6 12.50 5.6 19.60 56.82
* Interval widths are reported since there is insufficient data to reliably estimate true width.
** core recovery for interval is 59%; *** core recovery for interval is 43%; ****core recovery for interval is 46%
^Silver was detected with aqua regia digestion and ICP-AES or AAS on a 0.5g sample, not by PhotonAssay™.
^^PhotonAssay™ lower detection limit was 0.030 to 0.05 g/t Au but assigned as 0.010 g/t Au, consistent with the FA limit.
Value used for < detection limit is 0.005 g/t Au, half the fire assay detection limit.
The photon assay testing was conducted by ALS Canada Ltd. on rejects and pulp samples currently in
their storage, utilizing 500g samples , a significantly greater size compared to the 50g aliquots , which
were used in the fire assay method. Approximately 3% of the samples in the photon study utilized the FA
result due to insufficient remaining sample with most of those from lower grade intervals. The larger size
provides a more thorough assessment of gold distri bution in coarse gold settings, characteristic of the
Halo zone, where nugget effects can impact conventional assay results. The overall increase in gold
grades, especially through higher grade intervals, using the photon method strengthens confidence in
the reliability of prior intercepts and suggest s that localized high grade mineralization may be more
pronounced than previously reported.
The findings not only validate the previous fire assay results but also offer compelling evidence of coarse
gold mineralization, assisting with enhancing the understanding of the geological setting and guiding
future exploration efforts centered at the Halo zone which is central to the 2 km mineralized trend between
Buckley Creek to the north and the historical Quesnelle Quartz Mine at Hixon Creek to the south.
Frank Callaghan, President and CEO, comments “The reanalysis of QGQ24-20 by PhotonAssay not only
validates the robustness of our original fire assay intercepts, but also enhances confidence in the
presence of coarse, nuggety gold within the Halo zone. The results reaffirm our geological model and
sharpen our focus in advancing exploration. We’re very encouraged by the increase in gold grades and
look forward to deploying this insight as we move into the next phase of drilling.”
The technical information in this news release has been reviewed by Jean Pautler, an independent
consultant commissioned by the Company. Jean Pautler is a Professional Geoscientist (P.Geo.)
registered with the Association of Professional Engineers and Geoscientists of the Province of BC
(“APEGBC”) and licensed by Engineers and Geoscientists BC, and is a “Qualified Person” with re spect
to NI 43-101.
About Golden Cariboo Resources Ltd.
Golden Cariboo Resources Ltd. is rediscovering the Cariboo Gold Rush by proceeding with highly
targeted drilling and trenching programs on its Quesnelle Gold Quartz Mine property which is bordered
by Osisko Development (NSE :ODV/TSXV:ODV), partly intertwined with them at the north end of the
Cariboo Gold Project, and located along a favourable corridor adjacent to the Spanish and Eureka thrust
faults over a 94,899 hectare (234,501 acre) area . Historically, over 101 placer gold creeks on the 90-
kilometer (56 mile) trend from the Cariboo Hudson mine north to the Quesnelle Gold Quartz Mine property
have recorded production and successful placer mining continues to this day.
Golden Cariboo’s Quesnelle Gold Quartz Mine property is 4 kilometers (2.5 miles) northeast of, and road
accessible from, Hixon in central British Columbia. The Property includes the Quesnelle Quartz gold-
silver deposit, which was discovered in 1865 in conjunction with placer mining activities. Hixon Creek,
which dissects the old workings, is a placer creek which has seen small -scale placer production since
the mid 1860s.
For further information please contact:
GOLDEN CARIBOO RESOURCES LTD.
“J. Frank Callaghan”
J. Frank Callaghan, President & CEO
Tel: 604-669-6463
VISIT OUR WEBSITE FOR MORE DETAILS
www.goldencariboo.com
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Cautionary Statements:
This news release contains statements which constitute “forward-looking information” within the meaning of applicable securities laws, including statements regarding
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