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Riverside Completes Helicopter Magnetics Survey on the Duc Project, Progressing District Targeting in the Wawa Subprovince of Ontario

Exploration Programs

Riverside Completes Helicopter Magnetics

Survey on the Duc Project, Progressing

District Targeting in the Wawa Subprovince of

Ontario

Vancouver, British Columbia--(Newsfile Corp. - June 1, 2023) -

Riverside Resources Inc.

(TSXV:

RRI) (OTCQB: RVSDF) (FSE: 5YY)

("Riverside" or the "Company")

,

is pleased to announce it has

completed an airborne geophysical helicopter magnetics survey on the Duc Project in northwestern

Ontario progressing this important project in Riverside's Canada portfolio. The Duc Project is located

south of the town of Kapuskasing in the highly prospective Porcupine Mining District, which hosts a

number of orogenic gold deposits and critical metals projects. Magnetics is a well-established method

for defining geological boundaries and delineating geological structures, particularly faults and shears,

which are typically the host for precious metal mineralization and showing features typical of critical

metals exploration in this part of the greenstone belt.

The magnetic results are interpreted to show two major parallel shears that extend north-easterly through

the central part of the Duc Project with the magnetic high defining the mafic rocks which have iron that

can be part of a catalyst for gold and critical metals deposition.

The compilation of magnetic data and

existing geochemistry from past drilling and sampling demonstrates potential scale and prospectivity for

near surface mineralization continuing downward and eastward. This new survey helps to refine areas for

more detailed Induced Polarity (IP) geophysics surveys which will be evaluated during this upcoming

field season. IP is an excellent method to delineate sulphide mineralization and help vector in on drill

targets. Specifically, the survey focuses on targeting boundary areas and favorable geological features.

Riverside's President and CEO, John-Mark Staude stated: "The Magnetics survey has highlighted

multiple areas of interest and suggests historical work overlooked a significant opportunity within the

central part of the Project. As most of the terrain is thinly covered by glacial till, this survey provides us

with valuable data that will be incorporated into our exploration models and support next steps as we

progress further at Duc."

Summary of Results and Technical Observations

The Project is underlain by an Archean-aged metavolcanic and metasedimentary suite consisting of

greywacke, arkose, and iron formation. To the west and north the terrain is underlain by east-west

striking metasedimentary schists and mafic metavolcanic flows belonging to the Quetico Subprovince.

The south and east areas of the Project are underlain by a black, medium-grained rock described as

peridotite by previous explorers and is a greenstone unit which can be a favorable reactive host rock.

The boundary between is a highly prospective geologic boundary that could host major mineralization

potential.

Peridotite igneous rock is important because it can host platinum group elements (PGE)

mineralization and is a critical metal which previous drilling found and now this survey shows Riverside

has a large volume that is prospective from this magnetic work. There are several significant structures

and geological contacts that are highlighted in the survey. Past basal till drilling and diamond drilling

suggests there are a several fault-bounded units striking northeast within the Project area and are

highlighted by the survey. These parallel northeast trending fault structures, which include the Rufus Lake

and Lepage faults, have been shown to host gold mineralization in the district and represent a key target

element for this Project.

The Company originally considered conducting ground-based geophysics, however SHA Geophysic's

Heli-3G technology provides excellent results and is significantly less expensive than a ground survey.

Detailed geological mapping and induced polarization (IP) surveys over the peridotite and fault bounded

units are the most likely next follow-up exploration steps to refine priority drill targets.

Figure 1: First Vertical Derivative, Heli-3G magnetics survey with interpreted geology and

cross section line.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/6101/168321_afe9cc1b242e3ac6_002full.jpg

Magnetic Survey

The survey was conducted by SHA Geophysics using their Heli-3G, 3-axis magnetic gradiometer system

completing line spacing of 75m and a total of 112-line kilometers of survey.

This type of helicopter survey

uses SHA's latest technology and sensors to get clean and consistent data.

The vertical gradient accentuates shorter wavelengths and attenuates longer wavelengths. As a result,

the map enhances the anomalies associated with small near-surface magnetic sources while

suppressing large-scale regional variations. The vertical gradient presentation provides added visual

detail, particularly for small anomalies superimposed on or adjacent to larger anomalies.

Figure 2: Simplified cross section based on the new magnetics data and preliminary mapping.

Drill holes are 200 meters west of section line and projected in with their gold values as

previously disclosed.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/6101/168321_afe9cc1b242e3ac6_003full.jpg

Qualified Person (QP):

The scientific and technical data contained in this news release was reviewed and approved by

Freeman Smith, P.Geo, a non-independent qualified person to Riverside Resources, who is responsible

for ensuring that the geologic information provided within this news release is accurate and who acts as

a "qualified person" under National Instrument 43-101 Standards of Disclosure for Mineral Projects.

About Riverside Resources Inc.:

Riverside is a well-funded exploration company driven by value generation and discovery. The Company

has over $8M in cash, no debt and less than 75M shares outstanding with a strong portfolio of gold-silver

and copper assets and royalties in North America. Riverside has extensive experience and knowledge

operating in Canada and Mexico and leverages its large databases to generate a portfolio of

prospective mineral properties. In addition to Riverside's own exploration spending, the Company also

strives to diversify risk by securing joint-venture and spin-out partnerships to advance multiple assets

simultaneously and create more chances for discovery. Riverside has properties available for option,

with information available on the Company's website at

www.rivres.com

.

ON BEHALF OF RIVERSIDE RESOURCES INC.

"John-Mark Staude"

Dr. John-Mark Staude, President & CEO

For additional information contact:

John-Mark Staude

President, CEO

Riverside Resources Inc.

[email protected]

Phone: (778) 327-6671

Fax: (778) 327-6675

Web:

www.rivres.com

Mehran Bagherzadeh

Corporate Communications

Riverside Resources Inc.

Phone: (778) 327-6671

TF: (877) RIV-RES1

Web:

www.rivres.com

Certain statements in this press release may be considered forward-looking information. These

statements can be identified by the use of forward-looking terminology (e.g., "expect"," estimates",

"intends", "anticipates", "believes", "plans"). Such information involves known and unknown risks --

including the availability of funds, the results of financing and exploration activities, the interpretation

of exploration results and other geological data, or unanticipated costs and expenses and other risks

identified by Riverside in its public securities filings that may cause actual events to differ materially

from current expectations. Readers are cautioned not to place undue reliance on these forward-

looking statements, which speak only as of the date of this press release.

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.

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/168321