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Significant Uranium Mineralization Reported at CanAlaska's West McArthur Project Diamond drill hole WMA042 intersects 1.34% eU3O8 over 5.65metres, drilling continuing

Drill Results

Significant Uranium Mineralization Reported at

CanAlaska's West McArthur Project

Diamond drill hole WMA042 intersects 1.34% eU3O8 over 5.65metres, drilling

continuing

Vancouver, British Columbia--(Newsfile Corp. - August 30, 2017) -

CanAlaska Uranium Ltd. (TSXV:

CVV

) (OTCQB:

CVVUF

) (FSE:

DH7N

)

("CanAlaska" or the "Company") is pleased to report interim results from drill hole WMA042 on the

West McArthur uranium project ("Project") where testing of the C10 conductor package at Grid 5 continues. See earlier news of

July 20 2017.

A further drill hole is underway.

Drill hole WMA042 is located approximately 300 metres north of drill hole WMA035 completed in 2016, which is located on the

east end of Grid 5. The drill program is being conducted by

Cameco Corporation (TSX:

CCO

) (NYSE:

CCJ

)

The calculated grade of the uranium intercept, as measured by calibrated probe, is 1.34% eU

3

O

8

over 5.65 metres. The uranium

mineralization is disseminated in the basal sandstone column near the unconformity and is footwall to an altered fracture zone

with perched mineralization 80 metres higher in the drill hole. A wedge hole from WMA-042 is being drilled to test the optimum

target location.

West McArthur Project

Cameco Option

Grid 5 Target Area

To view an enhanced version, please visit:

http://orders.newsfilecorp.com/files/2864/28732_a1504123502475_87.jpg

WMA042 was designed to test a Stepwise Moving Loop Time Domain Electromagnetic response interpreted to represent the

C10 fault and stratigraphy. Below 217.1 metres, strongly bleached sandstone is intersected to 595.7 metres and hosts two brittle

fault intervals from 300.8 to 309.7 metres and 448.6 to 451.4 metres. A fault zone from 522.7 to 540.6 metres is characterized

by dravitic breccias and fracture coatings. Strong pervasive brick-red hematite from 697.8 to 700.2 metres transitions into

patchy hematite with pervasive fracture-controlled sooty pyrite and localized perched fracture-controlled uranium mineralization

to 715.6 metres. The remainder of the sandstone column is strongly bleached and overprinted by weak sooty pyrite as a halo

about a brittle fault zone from 738.9 to 743.2 metres. The fault is characterized by strong quartz dissolution (25% core loss),

strong sooty pyrite, and steeply dipping fractures. Pervasive sooty pyrite overprints the basal sandstone below 772.7 metres and

is associated with orange-brown oxides, local fracture-controlled brick-red hematite and disseminated uranium mineralization.

Equivalent U

3

O

8

results are summarized in Table 1 (0.1% eU

3

O

8

cut-off grade). The unconformity is intersected at 782.1 metres.

Table 1:

Hole

Number

Depth

From

(m

etres

)

Depth To

(metres

)

Length

(m)

Avg Grade

(% eU

3

O

8

)

GT (m%)

WMA042

704.22

707.32

3.1

0.13

0.39

WMA042

708.77

709.97

0.2

0.13

0.03

WMA042

773.07

778.72

5.65

1.34

7.55

WMA042

781.02

782.12

1.1

0.17

0.19

Cameco is carrying out the current work as part of an option to earn a 60% interest in the West McArthur project. Cameco has

paid CanAlaska an initial $725,000 and has the right to earn a first stage 30% interest for a $5 million exploration program

within 3 years ($1.1 million to date) on two separate target areas: Grid 1 and Grid 5. Cameco will then have the right, after a

$500,000 payment, to carry out a further $6.275 million of work on the Project over the following 3 years to earn a further 30%

interest and form a Joint Venture (JV) with CanAlaska.

The West McArthur Uranium Project covers 35,830 hectares (88,536 acres) commencing 15 kilometres (9 miles) west of

Cameco's majority-owned McArthur River uranium mine. More importantly, the Project is immediately adjacent to Cameco's Fox

Lake uranium discovery with reported inferred resources of approximately 68.1 million lbs based on 387,000 tonnes at 7.99%

U3O8. The Fox lake discovery is within the Read Lake project operated by Cameco (Cameco 78.2%, Areva 21.8%). Further

information on Project is available at

http://www.canalaska.com/s/West_McArthur.asp?ReportID=560713

.

CanAlaska president Peter Dasler comments, "I congratulate Cameco's team and their drill contractor for this significant

uranium discovery on the West McArthur property. We all look forward to continuing successes."

About CanAlaska Uranium

CanAlaska Uranium Ltd. (TSXV:

CVV

) (OTCQB:

CVVUF

) (FSE:

DH7N

) holds interests in approximately 500,000 hectares (1.2

million acres), one of the largest land positions in Canada's Athabasca Basin region — 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. 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.