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CanAlaska Exploration Update Cameco earns 30% of West McArthur project. Update West Athabasca Diamond targets

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CanAlaska Exploration Update

Cameco earns 30% of West McArthur project. Update West Athabasca

Diamond targets

Vancouver, British Columbia--(Newsfile Corp. - October 23, 2018) -

CanAlaska Uranium Ltd. (TSXV:

CVV

) (OTCQB:

CVVUF

) (FSE:

DH7N

)

("CanAlaska" or the "Company") reports that Cameco Corporation has given notice to acquire its 30%

interest and form a Joint Venture on the West McArthur uranium project.

CanAlaska will now become Operator of the Joint

Venture. The Company is currently in the process of preparing a program of work for 2019 exploration.

West McArthur Uranium Discovery

In August 2017, Cameco intersected the first high grade uranium mineralized intervals on the five kilometer long Grid 5 target

area at the 36,000 hectare West McArthur uranium project. The West McArthur property commences 15 kilometres (9 miles)

west of Cameco's majority-owned McArthur River uranium mine, and is located close to existing mines and infrastructure.

Map 1

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

http://orders.newsfilecorp.com/files/2864/40546_a1540232908954_58.jpg

To date, three holes have intersected mineralization, up to a maximum of 1.51% U

3

O

8

over 5.5 metres. The main anomalous

zone is centered on the structural complexity observed along the L5700W and L6000W geophysical lines, just west of the

property boundary. Further information on the Project is available at

http://www.canalaska.com

.

CanAlaska President Peter Dasler comments:

"Cameco's team has provided us with significant uranium mineralization on the

C10 conductor within the West McArthur property, just 1 — 2 kilometres west of the Fox Lake uranium deposits which show

inferred resources of approximately 68.1 million lbs based on 387,000 tonnes at 7.99% U3O8.

We now have drill holes and geophysical modeling indicating a substantial hydrothermal alteration system at a location

where we have significant flexures and offsets in the underlying graphitic units. We look forward to operating the project and

drilling to extend the current mineralized zones."

West A

thabasca Diamond Update:

In 2016, CanAlaska entered into an agreement with the De Beers Group of Companies to investigate magnetic anomalies

within sandstones of the Western Athabasca.

These magnetic anomalies showed as high amplitude circular magnetic features

on a 2012 Saskatchewan-Federal Government airborne survey.

De Beers embarked on an intensive work program, which

included high resolution airborne magnetic surveying, and esker sampling for indicator minerals, and concluded with limited drill

testing.

De Beers work defined 695 magnetic targets, 123 of which were defined as "High Priority" for kimberlite. Eleven of the 695

targets were modeled as highly magnetic and very near-surface and on dry ground.

Seven of these targets were drill tested with

short holes, three of the targets were explained by the presence of highly magnetic organic-derived material at the top of glacial

gravels.

One target was partially explained by a small diabase sill, but the other targets were inconclusive.

The esker sampling

for indicator minerals was also inconclusive.

De Beers and CanAlaska as well as other qualified experts have investigated the magnetic material from the drill holes, and

concluded that it is probably biogenic, and formed from bacterial activity in an anaerobic environment.

It is not detrital sand.

Following the return of 100% of the project to CanAlaska, there has been continued modeling of kimberlite style targets, and

discussion with experts.

The Company has concluded that at least 40 of the 695 magnetic features have the discrete circular

nature of classical kimberlite bodies and a different magnetic responses from the near-surface organic-derived material. In

some cases these features are masked by near-surface magnetic responses. The Company is currently planning for drill testing

of up to ten of these targets in late first quarter 2019.

About CanAlaska Uranium

CanAlaska Uranium Ltd. (TSXV: CVV) (OTCQB: CVVUF) (FSE: DH7N) holds interests in approximately 152,000 hectares

(375,000 acres), in Canada's Athabasca Basin — the "Saudi Arabia of Uranium."

CanAlaska's strategic holdings have

attracted major international mining companies. CanAlaska is currently working with Cameco and Denison at two of the

Company's properties in the Eastern Athabasca Basin. CanAlaska is a project generator positioned for discovery success in

the world's richest uranium district. The Company also holds properties prospective for nickel, copper, gold and diamonds. For

further information visit

www.canalaska.com

.

About Cameco Corporation

Further information on Cameco can be found at

www.cameco.com

.

The qualified technical person for this news release is Dr Karl Schimann, P. Geo, CanAlaska director and VP Exploration.

On behalf of the Board of Directors

"Peter Dasler"

Peter Dasler, M.Sc., P.Geo.

President & CEO

CanAlaska Uranium Ltd.

Contacts:

Peter Dasler, President

Tel: +1.604.688.3211

x 138

Email:

[email protected]

John Gomez, Corporate Development

Tel: +1.604.484.7118

Email:

[email protected]

Neither 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.

Forward-looking information

All statements included in this press release that address activities, events or developments that the Company expects,

believes or anticipates will or may occur in the future are forward-looking statements.

These forward-looking statements

involve numerous assumptions made by the Company based on its experience, perception of historical trends, current

conditions, expected future developments and other factors it believes are appropriate in the circumstances. In addition,

these statements involve substantial known and unknown risks and uncertainties that contribute to the possibility that the

predictions, forecasts, projections and other forward-looking statements will prove inaccurate, certain of which are beyond the

Company's control.

Readers should not place undue reliance on forward-looking statements.

Except as required by law, the

Company does not intend to revise or update these forward-looking statements after the date hereof or revise them to reflect

the occurrence of future unanticipated events.