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CanAlaska commences drilling at Cree East and Lake Athabasca uranium projects

VANCOUVER, Feb. 27 CanAlaska Uranium Ltd. (CVV - TSX.V) (the
"Company") is pleased to report the commencement of winter drilling at two
further sites in Canada's Athabasca Basin.

Cree East Drilling

Drilling has commenced on a cluster of targets, and the current drill
program of five holes and 2,300 metres will all test this initial area.
Drilling is expected to continue into April, and may be extended depending on
site conditions. CanAlaska Uranium is carrying out the project work on behalf
of CanAlaska Korea Uranium Ltd., which is funding a $19 million program of
exploration on the property.
The Cree East Project is situated in the Southeastern Athabasca Basin,
approximately 25 km west of the Key Lake uranium mine, and 20 km south-west of
Cameco Corp.'s Millenium uranium deposit. The Project claims were staked by
CanAlaska in 2004, and cover 559 sq. km. of the Wollaston-Mudjatik domain
rocks. Historical drilling tested alteration zones and targets, generally to
the south and east of the property, and current exploration by other companies
is revisiting these areas. The depth to the unconformity varies from 250
metres in the south to an inferred 800 metres in the north. From geophysical
evidence and past drilling, there appears to be a number of step structures at
the unconformity boundary and in the basement.
CanAlaska carried out airborne surveys across the property area in 2005
and determined priority targets. In 2006, detailed collection of over 2,000
surface rock samples and over 400 lake sediment samples by CanAlaska's field
crews defined three large areas of dravite and clay alteration on surface, and
localised boulder samples containing anomalous uranium. It is thought that the
dravite and clay alteration, coupled with the anomalous uranium in the lakes
and boulders in this vicinity indicates the proximity of unconformity and
basement style uranium mineralization. The shallow depth to basement also
allowed close definition of conductive zones and geological structures from
the airborne survey data. During winter and summer of 2007, the Company
conducted further IP-Resistivity and Audio Magneto Telluric geophysical
surveys. Initial ground geophysical data have provided the Company with
evidence of strong alteration in the sandstone horizons overlying these
basement conductors.

To view map click here:
http://www.canalaska.com/s/NewsRelea...eportID=288523

Lake Athabasca Drilling

Drilling is underway at Johnston Island on the Lake Athabasca Project,
located just south of the past-producing Gunnar Uranium Mine, in the Uranium
City area. This program is a continuation of the drill exploration carried out
in March-April, 2007, during which the company drilled significant alteration
and uranium mineralization at nearby Stewart and Grouse Island. (see News
Release of Aug. 21, 2007). The field crews expect to complete 2,000 metres of
drilling on shallow offshore targets, and on land-based targets identified
from extensive geophysical and geological work carried out over the past two
years.
The Company carried out intensive exploration over the summer months in
both target areas, and on the Northern Islands nearer to the historic Gunnar
Mine. This field work included detailed offshore seismic profiling and lake
bottom sediment sampling adjacent to zones of on-shore uranium mineralization.
A number of these on-shore uranium showings were identified in the early
1960's, but have had little exploration because of historic limitations.
The Gunnar mine is the major historic open pit uranium producer in the
Uranium City area, and the only intrusive-hosted uranium mine in the
Athabasca. It lies just to the north of CanAlaska's project claim boundary.
The mine's airborne and structural characteristics are closely matched to
similar features found on targets located within the islands immediately
south, and within CanAlaska's 100% project holdings.
In the 2007 drill program at Stewart Island, drilling intercepted
hematitic sandstone units with local epithermal style vuggy brecciation and
alteration. The unconformity was intercepted at an average of 49 metres below
surface. Elevated uranium mineralization was noted in core using hand-held
scintillometer, and local zones of moderate uranium enrichment were noted,
with assay values exceeding 1% U(3)O(8). At Grouse Island, 3.5 kilometres
south east of the initial 5 holes at Stewart Island, drillholes LAA006 and 007
intercepted major fracturation and brecciation of the sandstone from surface
to the unconformity, which is at 156 metres depth. There is significant
quartz-dravite flooding in the holes, with strong alteration over 20 metres
into the basement rocks, associated with strong fracturation, chloritization,
and shearing, with replacement dravite and quartz mineralization.

To view map click here:
http://www.canalaska.com/s/NewsRelea...eportID=288523

The person responsible for this press release is Peter Dasler, P.Geo.

About CanAlaska Uranium

CANALASKA URANIUM LTD. (CVV -- TSX.V, CVVUF -- OTCBB, DH7 -- Frankfurt)
is undertaking uranium exploration in seventeen 100%-owned and two optioned
uranium projects in Canada's Athabasca Basin. Since September 2004, the
Company has aggressively acquired one of the largest land positions in the
region, comprising over 2,500,000 acres (10,117 sq. km or 3,906 sq. miles).
CanAlaska has expended over Cdn$24 million exploring its properties in the
Athabasca Basin and has delineated multiple uranium targets. Initial drilling
results from the West McArthur Project revealed uranium mineralization and
significant zones of hydrothermal alteration, indicative of a favourable
environment for uranium deposition. Active drilling and exploration has
continued through the Summer, and Fall 2007 seasons at West McArthur and at
2 other significant projects. The Company's high profile in the prominent
Athabasca Basin has attracted the attention of major international strategic
partners. Among others, Mitsubishi Development Pty., a subsidiary of Japanese
conglomerate Mitsubishi Corporation, has undertaken to provide CanAlaska
C$11 mil. in exploration funding to earn 50% of the West McArthur Project. In
addition, exploration of CanAlaska's Cree East Project has commenced under a
C $19 mil. agreement executed with a consortium led by Hanwha Corporation, and
comprising Korea Electric Power Corp., Korea Resources Corp. and SK Energy Co,
Ltd.

For more information visit www.canalaska.com

On behalf of the Board of Director
Peter Dasler, M.Sc., P.Geo.
President & CEO, CanAlaska Uranium Ltd.

For further information: Emil Fung, Vice President, Corp. Dev., Tel:
(604) 688-3211, Toll Free (N. America): 1-800-667-1870, Email:
info@canalaska.com

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