Atomic Minerals Plans Lisbon Valley East Radon Survey
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For Immediate Release
PRESS RELEASE
March 17, 2026
Symbol: TSX-V: ATOM
FSE: DO8
OTCQB: ATMMF
Atomic Minerals Plans Lisbon Valley East Radon Survey
Vancouver, British Columbia, March 17, 2026 – Atomic Minerals Corporation ("Atomic Minerals"
or the "Company") ( TSX Venture: ATOM ; OTCQB: ATMMF; FSE:DO8 ) announces plans to
undertake a radon cup survey at is 1,516.5 acre (614 hectare) South Lisbon Valley East property
(“SLVE”) located with the Colorado Plateau uranium district, approximately 35 kilometres NE of
Monticello, Utah. The survey will take place shortly, as soon as weather permits and the Radon Survey
specialist is available.
The Company will run a series of equally spaced NE trending lines across the property and the full width
of the suspected arcuate belt of uranium mineralization hosted in the Moss Back member of the of the
Triassic Chinle Formation. The objective of the survey is to detect radon gas emanating from the Chinle
formation through faults to surface to assist in refining drilling targets prior to the planned late H1 early
H2 drill program.
Figure 1. South Lisbon Valley East Property
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“We are utilizing as many tools in the geological toolbox as we can to derisk our upcoming Lisbon
Valley East drill program,” commented Atomic Minerals’ CEO Clive Massey. “ We strongly believe
significant uranium mineralization lies within the target belt, analogous to the previously producing
uranium belt on the SW side of the Lisbon Valley Fault where 78 million lbs. was previously produced”
he concluded.
Figure 2. Lisbon Valley Historic Production
Colorado Plateau and Lisbon Valley Uranium
The roughly 130,000 square mile (336,700 square kilometre) Colorado Plateau, hosts the largest uranium
province in the USA and one of the largest in the world, having previously produced 597 million pounds
to date. Most of the Colorado Plateau uranium deposits are hosted in the Triassic Chinle and Jurassic
Morrison Formations that formed in mostly arid environments. These deposits are exposed today along
cliffs and drainages that transect the Plateau and have been m ined for vanadium since 1909 and for
uranium since 1946. The two main areas of uranium production were Morrison Formation Grants
Mineral Belt in New Mexico and the Chinle Formation Lisbon Valley in Utah.1
The Chinle Formation deposits are located in arcuate belts associated with a series of NW -SE trending
anticlines developed as a result of salt movement in the underlying strata within the Paradox Basin. Paleo
rivers flowed along each side of these anticlines with uranium mineralization found within these paleo-
channels along the lengths of the anticlines. Lisbon Valley is the type location for Chinle deposits.
Lisbon Valley produced approximately 78 million pounds of U 3O8 between 1952 and 1982 from an
arcuate belt some 16 miles long by 1 mile wide with approximately 1/3 of the belt eroded away post
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mineral. Individual ore bodies ranged from a few hundred pounds to 20,000,000 pounds of U3O8, hosted
in the basal Moss Back member of the Triassic Chinle formation along the southwest flank of the Lisbon
Valley anticline. A northwest trending, post-mineral normal fault, the Lisbon Valley Fault abruptly cut-
off and displaced the uranium mineralization associated with the northeast flank, speculatively dropping
it + 2500 feet on the northeast side of the fault.2
The Rio Algom mine produced 13 million pounds at an average grade of 0.25% U 3O8 at a depth 2550
feet on the downfaulted side of the fault, supporting the presence of an arcuate belt on the northeast side
of the fault2. Oil and gas drilling, largely between 2006 and 2014, on the northeast down-faulted side of
the Lisbon Valley anticline located anomalous to extremely anomalous gamma ray readings in the
suspected Moss Back Member in 28 of 51 hole drilled throughout a northwest trending belt 20 kilometres
in length by + 750 metres in width, outlining the suspected eastern arcuate belt.
Within Atomic’s SLVE property nine widely -spaced historic oil and gas wells appear to define the
southern end of this 20km by +750m belt as ‘off-scale’ radioactivity was recorded within the favorable
Chinle Formation host rock over widths of 1.8 to 4.5 m (6 to 15 feet) from depths of 760 to 880 m (2,495
to 2,890 feet).3
Sources of Information:
1. Hall, S.M., Van Gosen, B.S. and Zielinski, R.A. (2023). Sandstone -Hosted Uranium Deposits of the
Colorado Plateau, USA. Ore Geology Reviews Volume 155. 39p.
https://doi.org/10.1016/j.oregeorev.2023.105353
2. Chenoweth, W.L. (1990). Lisbon Valley, Utah's Premier Uranium Area, a Summary of Exploration
and Ore Production. Utah Geological Survey Open File Report 188, July 1990.
3. Utah Division of Oil, Gas and Mining Drill Hole Database API#’s 4303716221, 4303720318,
4303731848, 4303731850, 4303731859, 4303731860, 4303731883, 4303731891, and 4303750041
The data disclosed in this news release relates to historical drilling. Atomic has not undertaken any
independent investigation of the sampling, nor has it independently analyzed the results of the historical
exploration work in order to verify the results. Atomic considers these historical drill results relevant as
the Company will use this data as a guide to plan exploration programs. The Company’s current and
future exploration work includes verification of the historical data through drilling.
R. Tim Henneberry, PGeo (BC) and an advisor to Atomic, and a Qualified Person under National
Instrument 43-101 has reviewed and approved the technical content of the news release.
About Atomic Minerals Corporation
Atomic Minerals Corporation is a publicly listed exploration company on the TSXV, trading under the
symbol ATOM, led by a highly skilled management and technical team with a proven track record in
the junior mining sector. Atomic’s objective is to identify exploration opportunities in regions that have
been previously overlooked but are geologically similar to those with previous uranium discoveries.
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These underexplored areas hold immense potential and are in stable geopolitical and economic
environments.
Currently, the Company’s property portfolio contains Uranium projects with significant technical merit
in three locations known for hosting Uranium production in the past. We have four on the Colorado
Plateau, within the continental United States. The plateau has previously produced 597 million pounds
of U 3O8. The other two recently acquired propert ies are located in the prolific Athabasca region in
Saskatchewan, Canada and the Mount Laurier property located in Quebec, Canada.
For additional information about the Company and its projects, please visit our website at
www.atomicminerals.ca
ON BEHALF OF THE BOARD OF DIRECTORS
“Clive Massey”
Clive H. Massey
President & CEO
For further information, please contact:
Investor Relations, Ray Lagace
Tel: (604) 418-6950
Neither TSX Venture Exchange nor their 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.
Forward-Looking Statements:
This news release contains certain statements that may be deemed "forward -looking" statements. Forward
looking statements are statements that are not historical facts and are generally, but not always, identified by
the words "expects", "plans", "anticipat es", "believes", "intends", "estimates", "projects", "potential" and
similar expressions, or that events or conditions "will", "would", "may", "could" or "should" occur. Although
the Company believes the expectations expressed in such forward-looking statements are based on reasonable
assumptions, such statements are not guarantees of future performance and actual results may differ materially
from those in forward looking statements. Forward-looking statements are based on the beliefs, estimates and
opinions of the Company’s management on the date the statements are made. Except as required by law, the
Company undertakes no obligation to update these forward-looking statements in the event that management's
beliefs, estimates or opinions, or other factors, should change.