CanAlaska's New High Grade Uranium-Rare Earth Target in Manitoba



    VANCOUVER, Aug. 23 /CNW/ - CanAlaska Uranium Ltd. (CVV - TSX.V) (the
"Company") is pleased to report the results from early season field work on
its NE Wollaston Uranium project, where a new style of high grade uranium-rare
earth mineralization has been discovered. The mineralization is from a near
surface target within the prolifically mineralized Wollaston Group mineral
belt.
    The Company's Maguire field crew is credited with the identification of
the preliminary exploration target, by discovery of erratic boulders at the
close of the 2006 field season. This was then further defined by CanAlaska's
in-house geophysical crew via specific analysis of last seasons airborne
radiometric survey on the NE Wollaston Uranium project.
    Early season prospecting, directed from the co-ordinates provided by the
geophysics crew found an extensive angular boulder train of hydrothermally
altered, red-orange phosphate-rich, high radiometric count uranium boulders
extending over 1200 metres along the ice direction. This boulder train is
almost uniformly mineralized with uranium-rare earth mineralization, and
originates from a significant airborne geophysical target on shallow
overburden-covered ground.
    The mineralization discovered to-date is high grade U(3)O(8)
mineralization with up to over 1% U(3)O(8), is associated with what appears to
be a phosphate altered intrusive. Mineral composition appears to be almost
entirely apatite-feldspar, with higher grade Heavy and Light Rare Earth
elements, as well as high phosphate content.
    This style of mineralization is different to the marjority of the large
number of boulder-train and outcrop zones of U(3)O(80 mineralization
identified to date on this large property. However there are other less
defined zones with similar mineralization.
    The geophysical target associated with the highly mineralized boulder
train shows magnetic trends intersecting the stratigraphy, proximal to the
Maguire Fault Zone. This area has been prepared and is permitted for drilling,
but is awaiting local approvals and the arrival of drilling equipment. The
mineralized prospect zone, named "Crazy" is shown in the attached figure, and
sample results are tabulated below.

    
           Crazy Prospect Uranium-Rare Earth Boulder Train samples

    -------------------------------  -------------------------------
                            %Total                           %Total
    Sample  %U3O8     % Y    LREE     Sample   %U3O8    % Y   LREE
    -------------------------------  -------------------------------
    DBM020   1.24    0.19    0.24      OM321    0.33   0.08   0.11
    -------------------------------  -------------------------------
    GM356    1.23    0.21    0.27      OM332    0.31   0.06   0.08
    -------------------------------  -------------------------------
    OM328    0.95    0.14    0.17      DBM028   0.30   0.12   0.16
    -------------------------------  -------------------------------
    DBM033   0.84    0.20    0.33      DBM026   0.30   0.19   0.26
    -------------------------------  -------------------------------
    GM347    0.84    0.18    0.24      DBM021   0.29   0.05   0.06
    -------------------------------  -------------------------------
    DBM040   0.79    0.15    0.22      OM327    0.28   0.09   0.11
    -------------------------------  -------------------------------
    GM338    0.78    0.19    0.23      GM339    0.28   0.05   0.09
    -------------------------------  -------------------------------
    DBM036   0.76    0.15    0.28      GM340    0.28   0.11   0.21
    -------------------------------  -------------------------------
    GM336    0.76    0.20    0.26      GM357    0.27   0.16   0.21
    -------------------------------  -------------------------------
    OM317    0.73    0.19    0.29      DBM034   0.27   0.04   0.05
    -------------------------------  -------------------------------
    GM355    0.71    0.14    0.19      GM337    0.26   0.03   0.07
    -------------------------------  -------------------------------
    OM324    0.68    0.09    0.12      GM353    0.26   0.04   0.05
    -------------------------------  -------------------------------
    GM334    0.68    0.14    0.20      GM335    0.25   0.03   0.06
    -------------------------------  -------------------------------
    OM323    0.61    0.21    0.32      OM311    0.24   0.12   0.16
    -------------------------------  -------------------------------
    DBM029   0.60    0.12    0.16      GM352    0.23   0.03   0.04
    -------------------------------  -------------------------------
    GM348    0.60    0.04    0.06      GM349    0.22   0.15   0.21
    -------------------------------  -------------------------------
    OM330    0.58    0.16    0.25      OM320    0.21   0.03   0.04
    -------------------------------  -------------------------------
    DBM024   0.57    0.27    0.38      OM329    0.20   0.03   0.05
    -------------------------------  -------------------------------
    OM313    0.57    0.16    0.23      GM341    0.20   0.18   0.24
    -------------------------------  -------------------------------
    DBM039   0.49    0.11    0.15      OM331    0.20   0.08   0.11
    -------------------------------  -------------------------------
    GM346    0.49    0.10    0.12      DBM027   0.19   0.03   0.04
    -------------------------------  -------------------------------
    OM333    0.48    0.09    0.14      DBM035   0.19   0.05   0.06
    -------------------------------  -------------------------------
    RD177    0.47    0.15    0.18      DBM037   0.18   0.02   0.03
    -------------------------------  -------------------------------
    GM358    0.46    0.15    0.24      GM351    0.18   0.02   0.03
    -------------------------------  -------------------------------
    OM312    0.46    0.06    0.09      GM342    0.17   0.09   0.11
    -------------------------------  -------------------------------
    OM315    0.44    0.09    0.13      CH011    0.17   0.02   0.05
    -------------------------------  -------------------------------
    DBM025   0.41    0.17    0.23      DBM038   0.16   0.02   0.03
    -------------------------------  -------------------------------
    OM310    0.41    0.14    0.22      OM325    0.14   0.02   0.03
    -------------------------------  -------------------------------
    OM334    0.40    0.11    0.13      GM343    0.14   0.01   0.04
    -------------------------------  -------------------------------
    OM314    0.40    0.10    0.18      DBM032   0.12   0.06   0.08
    -------------------------------  -------------------------------
    OM316    0.40    0.09    0.14      RD170    0.11   0.07   0.12
    -------------------------------  -------------------------------
    DBM022   0.39    0.11    0.15      BP004    0.10   0.04   0.09
    -------------------------------  -------------------------------
    OM326    0.39    0.03    0.05      DBM023   0.07   0.02   0.03
    -------------------------------  -------------------------------
    OM322    0.38    0.02    0.04      Average  0.41   0.10   0.14
    -------------------------------  -------------------------------
    OM309    0.38    0.13    0.21
    -------------------------------
    MG018    0.38    0.12    0.20
    -------------------------------
    DBM042   0.36    0.08    0.10
    -------------------------------
    GM354    0.35    0.09    0.11
    -------------------------------
    DBM041   0.33    0.04    0.07
    -------------------------------
    GM350    0.33    0.03    0.06
    -------------------------------



                   Crazy Prospect Rare Earth Element Assays

    -------------------------------------------------------------------------
           LREE  La   Ce  Pr  Nd   Sm HREE  Eu   Er   Gd   Dy   Ho   Tb   Yb
    Sample  ppm ppm  ppm ppm ppm  ppm  ppm ppm  ppm  ppm  ppm  ppm  ppm  ppm
    -------------------------------------------------------------------------
    DBM020 2408 266  707  85 396  121  831 2.4  159  180  265   59 40.6  127
    -------------------------------------------------------------------------
    GM356  2653 300  791 119 420  138  882 2.9  159  209  295 63.3 36.4  119
    -------------------------------------------------------------------------
    OM328  1739 198  500  83 285 94.9  576 1.9  107  139  195 41.6 22.3   71
    -------------------------------------------------------------------------
    DBM033 3260 505 1100 148 516  140  849 2.3  157  185  267 56.8 37.3  146
    -------------------------------------------------------------------------
    GM347  2405 359  572 125 434  139  773 2.5  128  204  268 53.9 37.4 81.8
    -------------------------------------------------------------------------
    DBM040 2211 294  686 101 351  114  663 1.9  115  164  226 46.8 30.6 80.4
    -------------------------------------------------------------------------
    GM338  2312 366  321 123 502  153  844 2.7  141  225  284 57.6 47.3 89.5
    -------------------------------------------------------------------------
    DBM036 2775 434  989 127 416  133  674 2.3  108  180  228 45.5   33 79.6
    -------------------------------------------------------------------------
    GM336  2636 291  795 100 448  139  861 2.4  159  205  276 60.3 44.2  116
    -------------------------------------------------------------------------
    OM317  2899 406  971 134 458  137  790 2.4  139  186  260 54.6 35.6  115
    -------------------------------------------------------------------------
    GM355  1929 253  609  87 300  100  578   2 98.9  148  196 40.8 26.2 68.2
    -------------------------------------------------------------------------
    OM324  1176 137  347  55 180 63.2  392 1.6 70.3 93.9  134 28.4 14.5   51
    -------------------------------------------------------------------------
    GM334  1986 243  632  74 322 98.6  614 1.8  114  140  194 42.6 30.7 92.9
    -------------------------------------------------------------------------
    OM323  3229 482 1090 144 488  143  879 2.8  157  196  284 60.3 39.8  142
    -------------------------------------------------------------------------
    DBM029 1611 191  489  73 247 82.1  527   2 96.1  117  173   37 22.4 81.1
    -------------------------------------------------------------------------
    GM348   592  81  196  30  82 30.5  172 1.1 30.3 40.6 59.6 12.1  3.7 25.4
    -------------------------------------------------------------------------
    OM330  2460 347  815 113 369  120  694 2.4  120  166  230 47.9 32.3 97.3
    -------------------------------------------------------------------------
    DBM024 3817 454 1150 146 665  208 1191   3  205  320  393 83.4 66.7  123
    -------------------------------------------------------------------------
    OM313  2332 234  682  90 377  156  791 1.8  112  231  270 49.3 51.4 77.3
    -------------------------------------------------------------------------
    DBM039 1473 181  454  66 236 78.5  456 1.5 81.7  109  150   31 22.6 62.1
    -------------------------------------------------------------------------
    GM346  1233 145  380  55 185 61.6  404 1.9 74.6   89  132 28.3 15.9 64.6
    -------------------------------------------------------------------------
    OM333  1441 198  484  66 217   70  404 1.6 69.8 96.1  133 27.3 17.2 60.7
    -------------------------------------------------------------------------
    RD177  1820 246  384  96 329  106  656 2.4  115  152  215 44.6 29.8  100
    -------------------------------------------------------------------------
    GM358  2359 333  796 109 355  114  650 2.1  112  155  211 43.7 30.9 97.5
    -------------------------------------------------------------------------
    OM312   900 113  298  35 144 46.4  262 1.2 44.9 65.7 86.1 17.9 13.4 34.3
    -------------------------------------------------------------------------
    OM315  1317 156  412  50 211 71.2  415 1.5 70.8  100  135 28.2 22.4 58.7
    -------------------------------------------------------------------------
    DBM025 2265 288  640  92 398  121  724 2.2  131  178  232 50.1 37.8 95.2
    -------------------------------------------------------------------------
    OM310  2211 258  703  86 356  127  679 1.7  105  182  228 43.6   41 79.7
    -------------------------------------------------------------------------
    OM334  1319 160  392  60 196 65.3  445 1.6 81.1 98.6  146 31.3 18.3 69.2
    -------------------------------------------------------------------------
    OM314  1849 280  617  75 302   91  483 1.6 80.7  123  156 32.3 26.4 64.4
    -------------------------------------------------------------------------
    OM316  1402 193  461  67 227 68.8  383 1.6 66.8 95.4  127 26.2 17.8 49.9
    -------------------------------------------------------------------------
    DBM022 1494 181  467  56 239 76.1  473 1.8 86.1  111  152 32.4 23.9 67.6
    -------------------------------------------------------------------------
    OM326   464  53  144  22  68 26.8  149   1 25.2 36.5 52.8 10.5  4.6 19.2
    -------------------------------------------------------------------------
    OM322   353  46  109  17  50 18.9  111 0.9 20.1   25 38.6  8.2  2.3 16.7
    -------------------------------------------------------------------------
    OM309  2121 301  716  84 339  103  576   2 99.3  142  183 38.2 30.6 82.8
    -------------------------------------------------------------------------
    MG018  1968 274  653  88 323 95.8  532 1.8 93.7  134  174 36.6 26.7 67.4
    -------------------------------------------------------------------------
    DBM042 1041 126  317  47 171   53  326 1.2 60.4 75.9  106 22.3 14.2 46.8
    -------------------------------------------------------------------------
    GM354   732 118  328  51 180 55.4  365 1.7   68 78.4  115 24.4   15 62.1
    -------------------------------------------------------------------------
    DBM041  713 112  249  32 108 34.5  177 0.8 29.7 45.6 58.9 11.7  7.4 22.8
    -------------------------------------------------------------------------
    GM350   626  95  226  30  88 29.8  156 0.9 25.7 38.8 52.7 10.5  5.2 22.6
    -------------------------------------------------------------------------
    OM321  1130 149  362  52 179 54.4  332 1.2 61.4 77.9  109 23.1 14.5 44.9
    -------------------------------------------------------------------------
    OM332   784  91  243  35 119   40  255 1.6 45.9 57.7 83.9 17.6  9.9 38.1
    -------------------------------------------------------------------------
    DBM028 1637 205  511  70 260 80.9  508 1.7 94.7  113  162 34.2 23.6 78.9
    -------------------------------------------------------------------------
    DBM026 2633 346  838 123 419  125  779 2.4  139  176  244 50.9   38  129
    -------------------------------------------------------------------------
    DBM021  647  80  207  24 101 32.3  202   1 35.7 48.2 66.5   14  9.6 26.7
    -------------------------------------------------------------------------
    OM327  1147 138  368  52 132 62.4  393 1.9 71.1 90.3  127 27.2 17.3   58
    -------------------------------------------------------------------------
    GM339   868 103  258  31 191 41.6  243 1.3 42.4 59.6 78.5 16.7 11.8 32.2
    -------------------------------------------------------------------------
    GM340  2066 307  723  98 343 99.3  494 1.8 80.3  136  162 32.6   26 55.2
    -------------------------------------------------------------------------
    GM357  2123 240  622  96 349  105  708 2.8  132  151  220 46.9 32.6  123
    -------------------------------------------------------------------------
    DBM034  545  62  161  24  85   28  183 1.2 34.6   40 59.4 12.7    7 28.4
    -------------------------------------------------------------------------
    GM337   676 109  241  28 110 33.5  154 0.9 22.9 44.4 50.4  9.8  8.2 17.1
    -------------------------------------------------------------------------
    GM353   545  69  171  25  85 29.2  164   1 28.3 40.8 55.6 11.3  6.3 21.1
    -------------------------------------------------------------------------
    GM335   597  96  223  23  93 28.3  132 0.8 20.2 36.9   43  8.5  6.6 16.4
    -------------------------------------------------------------------------
    OM311  1578 254  273  86 319   96  548   2 95.6  129  172 35.8   28 85.6
    -------------------------------------------------------------------------
    GM352   393  48  120  19  61 21.1  123   1 21.6 29.6   42  8.5  3.9 16.6
    -------------------------------------------------------------------------
    GM349  2126 266  663  95 345  100  654 2.5  122  143  204 43.7 30.8  108
    -------------------------------------------------------------------------
    OM320   401  52  126  19  62 20.9  120 0.8 21.2 28.5 40.3  8.2  4.1 17.2
    -------------------------------------------------------------------------
    OM329   455  61  151  20  68 23.1  131 0.8 22.7 30.9 43.6    9  4.6 19.3
    -------------------------------------------------------------------------
    GM341  2396 243  711 110 401  138  792 1.8  131  204  265 52.2 44.8 92.7
    -------------------------------------------------------------------------
    OM331  1109 131  342  49 180 59.4  346 1.8 58.9 87.5  115   24 16.5 42.1
    -------------------------------------------------------------------------
    DBM027  395  48  118  18  62 22.2  126 0.9 21.4 31.5 42.8  8.5  4.9 15.8
    -------------------------------------------------------------------------
    DBM035  600  68  174  26  99 31.3  201 1.2 37.6 45.7 64.6 13.8  8.2 29.6
    -------------------------------------------------------------------------
    DBM037  298  39   88  13  46 16.2   95 0.9 16.8   23 32.2  6.6  2.9 12.6
    -------------------------------------------------------------------------
    GM351   321  40   99  16  50 17.5   97 0.8 16.3 24.6   33  6.5  3.4 12.8
    -------------------------------------------------------------------------
    GM342  1140 125  330  51 193 58.5  382 1.4   71 90.6  123 26.4 17.8 51.3
    -------------------------------------------------------------------------
    CH011   487  86  179  24  71   22  105 0.7 16.1 28.4 33.8  6.6  4.2 14.7
    -------------------------------------------------------------------------
    DBM038  347  45  105  15  54 18.9  108 0.9 18.8 26.8 36.4  7.5  4.1 13.4
    -------------------------------------------------------------------------
    OM325   331  39  101  14  49 16.9  110 1.1 20.2 24.7 36.6  7.8  3.3 16.3
    -------------------------------------------------------------------------
    GM343   437  70  172  22  73 27.4   72 0.3  5.3 31.9 22.9  3.5  4.3  3.6
    -------------------------------------------------------------------------
    DBM032  761 108  231  31 119 34.5  236 1.2 44.9 50.7 73.9 16.2   10 39.4
    -------------------------------------------------------------------------
    RD170  1203 166  404  53 184 60.6  334 1.3 54.4 87.2  112 22.5 17.3 39.5
    -------------------------------------------------------------------------
    BP004   911 149  332  44 144 43.5  197 0.9 30.4 55.2 62.6 12.1 10.3 25.8
    -------------------------------------------------------------------------
    DBM023  347  45  122  14  59 18.5   88 0.9 11.8   24 26.2  5.4  6.5 12.7
    -------------------------------------------------------------------------

    -------------------------------------------------------------------------
    Average
           1438 189  444  64 234   74  436   2   76  106  143   30   21   60
    -------------------------------------------------------------------------
    

    To view map please visit:
    http://www.canalaska.com/i/maps/map_attachment_NE-Wollaston082307.pdf

    All of the samples from the prospecting program were submitted to
Saskatchewan Research laboratories, a qualified Canadian Laboratory, for
analysis. Samples submitted to were analyzed for multi-element geochemistry
and including uranium by tri-acid digestion and ICP. The samples were
collected by CanAlaska field geologists under the supervision of Dr Karl
Schimann, and were shipped in secure containment to the laboratory.
    Peter Dasler, M.Sc. P Geo. is the qualified technical person responsible
for this news release.

    About CanAlaska Uranium Ltd. - www.canalaska.com

    CanAlaska Uranium (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$22 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 continues
in the Summer, 2007 exploration season 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.
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. An MOU has also been
executed with Hanwha Corporation, a S. Korean conglomerate, to enter into
joint exploration of CanAlaska's Cree East Project.

    On behalf of the Board of Directors

    (signed)

    Peter Dasler, M.Sc., P.Geo.
    President & CEO, CanAlaska Uranium Ltd.

    The TSX Venture has not reviewed and does not accept responsibility for
the adequacy or accuracy of this release: CUSIPNo. 13708P 10 2. This news
release contains certain "Forward-Looking Statements" within the meaning of
Section 21E of the United States Securities Exchange Act of 1934, as amended.
All statements, other than statements of historical fact, included herein are
forward-looking statements that involve various risks and uncertainties. There
can be no assurance that such statements will prove to be accurate, and actual
results and future events could differ materially from those anticipated in
such statements. Important factors that could cause actual results to differ
materially from the Company's expectations are disclosed in the Company's
documents filed from time to time with the British Columbia Securities
Commission and the United States Securities & Exchange Commission.





For further information:

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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