Guyana Goldfields: Aurora Exploration Update

Fri Apr 25, 2008 8:01am EDT

* Reuters is not responsible for the content in this press release.

  TORONTO, ONTARIO, Apr 25 (MARKET WIRE) -- 
 Guyana Goldfields Inc. (TSX: GUY), is pleased to provide an update of
its exploration activities at the 100% owned Aurora property, Guyana.
Results reported in the release include diamond drilling results from
both shallow and deep drill holes in the Rory's Knoll area as well as
trenching and drilling results from the Central Zone. A complete table of
results incorporating thirteen drill holes and thirty trenches is
attached to this release.

    Rory's Knoll

    Diamond drilling continues to confirm and define significant gold
mineralization in the Rory's Knoll resource. High grade gold
mineralization was encountered in both deep and shallow drill holes
within broader zones of disseminated gold mineralization. For instance,
drill hole RKD 101, intersected 190 metres averaging 5.24 g/t Au,
including 25 metres of 17.07 g/t. Drill hole RKD 103 which targeted much
deeper areas between 500 and 700 metres below surface, intersected 80
metres averaging 7.7 g/t Au. These results, as well as those from
approximately 30,000 metres of additional drilling, will be incorporated
into a new resource calculation scheduled for the third quarter 2008.

    Central Zone

    The Company is presently focusing on defining additional resources in the
Central Zone. This area is approximately 500 metres wide and 1000 metres
long and lies between the Rory's Knoll and Alex Hill resources. In the
southern sector it includes the Mad Kiss, West Mad Kiss and Walcott Hill
zones and to the north, the North Aleck Hill districts. Additional
trenching and drilling in these areas has continued to reveal significant
widespread gold mineralization. Drill Hole NAHD 15 at North Aleck Hill
intersected 7 metres (5.36 m True Width) @ 3.72 g/t Au, 16 metres (12.25
m True Width) @ 1.29 g/t Au and 10 metres (7.7 m True Width) of 2.85 g/t
Au. Additional trenching in the Northern Zone has also expanded gold
mineralization to the south and west, with trench NAHT 15 returning
16metres (13.6 m True Width) @ 7.35 g/t Au and 16metres (13.6 m True
Width) @ 3.28 g/t Au. In the southern sector trenching and drilling has
also expanded existing gold zones and has led to the discovery of
parallel mineralized structures. Hole WMKD 19 returned 6metres (5.10 True
Width) of 3.65 g/t Au and 18metres (15.30 True Width) @ 3.88 g/t Au while
trench WMKT 8 expanded at surface gold mineralization to the south by
returning 19metres (18.01 True Width) @ 6.77 g/t Au, including 5 metres
(4.76 True Width) grading 23.65 g/t Au. Approximately 200 metres north of
this area trench WHT-6 returned 10.7 metres (9.96 True Width) grading
4.67 g/t Au.

    The Company has experienced considerable delays in the receipt of assays
from the laboratory. Currently, results from 18 holes are pending from
the lab from the Central Zone. Results from this area will be
incorporated into the new resource estimate.

    Management believes the highly encouraging results for the Central Zone
may lead to a significant increase in the resources at the Aurora
Property.

    The Aurora exploration, drilling and trenching program is being carried
out under the direction of Mr. Niel Silvio, a qualified person within the
meaning of National Instrument 43-101. Sample blanks, duplicates and
recognized standards were inserted into the sample stream at regular
intervals. The Company is utilizing the services of Loring Laboratories;
a Canadian owned and operated facility located in Georgetown, Guyana. Mr.
Silvio has reviewed the exploration results contained in this news
release.

    About Guyana Goldfields:

    Guyana Goldfields Inc is a Canadian based mineral exploration Company
primarily focused on the exploration and development of gold deposits in
the Guiana Shield of South America. The Guiana Shield is in the northern
part of the Amazon Craton and covers parts of Guyana, Venezuela,
Suriname, French Guyana and northern Brazil.

    The Company holds advanced exploration projects in various stages of
development and has been operating in Guyana continuously since 1996.

    The Company currently has approximately (CDN) $17 million in cash and no
debt.

    Additional Information:

    Information is available on the Company's website at www.guygold.com and
on www.sedar.com.


                          Drilling Results

Rorys Knoll
---------------------------------------------------------------------------
---------------------------------------------------------------------------
          Grid Coordinates    Grid      Dip    Drill Intercept
        ------------------ Azimuth (degrees)      (metres)            Grade
        Northing   Easting(degrees)           --------------------- (g/t Au)
Hole #                                        From     To     Width
---------------------------------------------------------------------------
---------------------------------------------------------------------------
RKD-101    10025     10894     270      -73    129    144     15.00    2.83
                                  including    133    135      2.00   16.13
                                               165    183     18.00    1.24
                                               204    216     12.00    1.11
                                               249    270     21.00    1.82
                                  including    255    258      3.00    6.86
                                               284    474    190.00    5.24
                                                                       3.95
                                                          (cut to 25 g/t Au)
                                  including    298    308     10.00    6.54
                                  including    330    362     32.00    5.88
                                  including    384    392      8.00    6.03
                                  including    406    431     25.00   17.07
                                                                       7.23
                                                          (cut to 25 g/t Au)
                                  including    447    461     14.00    6.40

---------------------------------------------------------------------------
---------------------------------------------------------------------------

RKD-102     9999     10899     256      -68     69     75      6.00    1.78
                                               110    118      8.00    4.12
                                  including    112    118      6.00    5.10
                                               178    381    203.00    2.25
                                                                       2.23
                                                          (cut to 25 g/t Au)
                                  including    184    186      2.00    7.37
                                  including    202    206      4.00    4.82
                                  including    253    273     20.00    6.60
                                                                       6.42
                                                          (cut to 25 g/t Au)
                                  including    283    285      2.00    7.00
                                  including    303    307      4.00    5.18
                                  including    331    341     10.00    4.93

---------------------------------------------------------------------------
---------------------------------------------------------------------------

RKD-103    10000     10950     310      -78    598  619.7     21.70    4.73
                                  including    600    610     10.00    7.67
                                               665    904    239.00    3.49
                                                                       3.11
                                                          (cut to 25 g/t Au)
                                  including    701    813    112.00    6.12
                                                                       5.30
                                                          (cut to 25 g/t Au)
                                  including    701    781     80.00    7.70
                                                                       6.28
                                                          (cut to 25 g/t Au)
                                  including    739    781     42.00    9.11
                                                                       6.94
                                                          (cut to 25 g/t Au)
---------------------------------------------------------------------------
---------------------------------------------------------------------------

RKD-104    10050     10950     301      -82    747    876    129.00    2.20
                                                                       1.83
                                                          (cut to 25 g/t Au)
                                  including    779    813     34.00    5.92
                                                                       4.49
                                                          (cut to 25 g/t Au)
                                  including    791    801     10.00   12.68
                                                                       7.83
                                                          (cut to 25 g/t Au)
                                  including    825    827      2.00    6.67

---------------------------------------------------------------------------
---------------------------------------------------------------------------

RKD-105     9999     10899     260      -55    138    283    145.00    3.20
                                                                       2.87
                                                          (cut to 25 g/t Au)
                                               138  147.5      9.50   15.70     
                                                                10.72
                                                          (cut to 25 g/t Au)
                                               203    207      4.00    5.48
                                               235    239      4.00    6.32
                                               259    261      2.00    6.64

---------------------------------------------------------------------------
---------------------------------------------------------------------------

RKD-106    10025     10895     270      -80  141.5    158     16.50    2.03
                                  including  147.5    152      4.50    4.72
                                             165.5  178.7     13.20    2.78
                                  including  165.5  168.5      3.00    6.05
                                             240.4    270     29.60    5.60
                                  including    243    249      6.00    7.75
                                  including  262.5    270      7.50   14.37
                                               301  311.5     10.50    5.64
                                  including    301  308.5      7.50    7.54
                                            378.05    637    258.95    1.59
                                  including    414    424     10.00    9.94
                                  including    502    506      4.00    4.50
                                  including    553    561      8.00    5.18
                                  including    607    613      6.00    5.35

---------------------------------------------------------------------------
---------------------------------------------------------------------------

RKD-107    10026     10875     260      -55    130  285.5    155.50    2.99
                                                                       2.56
                                                          (cut to 25 g/t Au)
                                  including  131.5    147     15.50   11.67
                                                                       7.33
                                                          (cut to 25 g/t Au)
                                  including    163    169      6.00    5.10
                                  including    195    207     12.00    5.39
                                  including    263    267      4.00    5.27

---------------------------------------------------------------------------
---------------------------------------------------------------------------

RKD-109    10024     10874     250      -45     64  67.15      3.15    1.93
                                               106  171.5     65.50    1.09
                                  including    124    130      6.00    4.87

---------------------------------------------------------------------------
---------------------------------------------------------------------------

Central Zone South                                           Width/
                                                               True
                                                              Width
WMKD-19     9939      9935      90      -64      0      6    6/5.10    3.65
                                               125    143  18/15.30    3.88

---------------------------------------------------------------------------
---------------------------------------------------------------------------

Central Zone North
NAHD-15    10571     10109     231      -50   5.00  12.00    7/5.36    3.72
                                             88.00 104.00  16/12.25    1.29
                                            108.00 109.00    1/0.77    2.32
                                            117.00 118.00    1/0.77    1.37
                                            150.00 160.00   10/7.70    2.85
                                  including 158.00 160.00    2/1.53   11.45
                                            172.00 174.00    2/1.53    1.37

---------------------------------------------------------------------------
---------------------------------------------------------------------------

NAHD-16    10602    10137      258      -60  31.00  32.00    1/0.87    1.03
                                             60.00  73.00  13/11.25    1.99
                                  including  69.00  72.00    3/2.60    4.96
                                            120.00 125.00    5/4.30    3.36
                                            211.00 214.00    3/2.60    2.26
                                            251.00 268.00   17/14.7    1.49
                                  including 264.00 266.00    2/1.73    6.70

---------------------------------------------------------------------------
---------------------------------------------------------------------------

NAHD-17    10451     10166     270      -45 223.00 237.00   14/3.61    3.61
                                  including 223.00 226.00    3/2.69   14.00

---------------------------------------------------------------------------
---------------------------------------------------------------------------

NAHD-19    10539      9927      90      -45  52.00  57.00    5/1.10    1.10
                                            104.00 138.00     34/24    1.04
                                  including 132.00 134.00    2/5.04    5.04
                                            171.00 174.00    3/2.69    2.69

---------------------------------------------------------------------------
---------------------------------------------------------------------------

                              Trenching Results
---------------------------------------------------------------------------
---------------------------------------------------------------------------
                                               Intercept (metres)
                  Grid                     ------------------------
Trench #   Coordinates     Grid                             Width/
         North-  East-  Azimuth                               True   Grade
            ing    ing (degrees)             From     To     Width (g/t Au)
---------------------------------------------------------------------------
---------------------------------------------------------------------------
Central Zone South

WMKT-1AS   9952  10073      271             44.00  47.00    3/2.87   24.51
                                                                     10.17
                                                         (cut to 25 g/t Au)
                                including   44.00  45.00    1/0.96   68.03
                                                                     25.00
                                                         (cut to 25 g/t Au)

---------------------------------------------------------------------------
---------------------------------------------------------------------------
WMKT-2    10112  10100       35             30.00  36.00    6/5.59    1.14
                                including   42.00  45.00    3/2.80    0.93
                                including   59.50  61.50    2/1.86    1.17

---------------------------------------------------------------------------
---------------------------------------------------------------------------
WMKT-2S   10111  10101       35             29.00  37.00    8/7.45    3.04
                                including   31.00  33.00    2/1.86    9.90
                                including   44.00  46.00    2/1.86    1.18

---------------------------------------------------------------------------
---------------------------------------------------------------------------
WMKT-3S   10206  10201      156             50.00  83.00   33/30.0    1.22
                                including   81.00  83.00    2/1.86    4.30

---------------------------------------------------------------------------
---------------------------------------------------------------------------
WMKT-4S   10103  10209      311             13.00  23.00   10/5.73    1.09
                                including   16.00  17.00    1/0.50    4.40

---------------------------------------------------------------------------
---------------------------------------------------------------------------
WMKT-6    10138  10194      215             40.00  44.00    4/3.20    3.09
                                including   42.00  43.00    1/0.50    7.07

---------------------------------------------------------------------------
---------------------------------------------------------------------------
WMKT-8     9903  10104      273             54.00  57.00    3/2.86    2.00
                                including   98.00 117.00  19/18.01    6.77
                                                                      6.48
                                                         (cut to 25 g/t Au)
                                including   99.00 104.00    5/4.76   23.65
                                                                     22.57
                                                         (cut to 25 g/t Au)

---------------------------------------------------------------------------
---------------------------------------------------------------------------
WMKT-9     9970  10007       90             29.00  33.00    4/3.81    2.55
                                including   30.00  31.00    1/0.95    6.53

---------------------------------------------------------------------------
---------------------------------------------------------------------------
WMKT-11   10131  10222       41              4.00   6.00    2/1.95    1.36
                                including   50.00  53.00    3/2.92    2.08
                                including   64.00  67.00    3/2.92    1.02

---------------------------------------------------------------------------
---------------------------------------------------------------------------
WHT-1     10023  10297       94             22.00  26.00    4/2.72    1.06      
                         including   33.00  35.00    2/1.34    8.37
                                including   33.00  34.00    1/0.68   15.53
                                including   54.00  57.00    3/2.04    2.51
                                including   97.00  99.00    2/1.99    1.18

---------------------------------------------------------------------------
---------------------------------------------------------------------------
WHT-2     10070  10288       90              0.00  12.00   12/9.91    1.45
                                including    1.00   3.00    2/1.65    4.43
                                including   64.00  66.00    2/1.43    1.01
                                including   77.00  79.00    2/1.41    1.29
                                including   98.00 123.00  25/23.80    1.69

---------------------------------------------------------------------------
---------------------------------------------------------------------------
WHT-2XS   10069  10293      270              5.00   8.00    3/2.48    1.43

---------------------------------------------------------------------------
---------------------------------------------------------------------------
WHT-5     10289  10343      217             18.00  23.00    5/4.40    1.66
                                including   18.00  19.00    1/0.88    6.40

---------------------------------------------------------------------------
---------------------------------------------------------------------------
WHT-6     10114  10364      266             15.00  25.70 10.7/9.96    4.67
                                                                      4.36
                                                         (cut to 25 g/t Au)
                                including   17.00  20.00    3/2.79   14.08
                                                                     12.98
                                                         (cut to 25 g/t Au)

---------------------------------------------------------------------------
---------------------------------------------------------------------------
WHT-6S    10113  10364      266            19.00  21.00     2/1.86    9.10

---------------------------------------------------------------------------
---------------------------------------------------------------------------
WHT-7     10113  10368       79            37.00  39.00     2/1.79    3.07

---------------------------------------------------------------------------
---------------------------------------------------------------------------
WHT-8     10088  10378       91            21.00  23.00     2/1.96    6.39
                                including  22.00  23.00     1/0.98   11.87

---------------------------------------------------------------------------
---------------------------------------------------------------------------
WHT-8S    10086  10378       91            13.00  16.00     3/2.94    1.80
                                including  21.00  23.00     2/1.96    2.15

---------------------------------------------------------------------------
---------------------------------------------------------------------------
Central Zone North

NAHT-6    10683   9998       77           114.00 116.00     2/1.70    1.17

---------------------------------------------------------------------------
---------------------------------------------------------------------------
NAHT-7A   10366   9993       90            23.00  25.00     2/1.70    1.93
                                including  28.00  30.00     2/1.70    1.30

---------------------------------------------------------------------------
---------------------------------------------------------------------------
NAHT-8    10283   9933       90            25.00  26.00     1/0.87    1.43

---------------------------------------------------------------------------
---------------------------------------------------------------------------
NAHT-9    10239   9942      113            68.00  88.00      20/17    0.55

---------------------------------------------------------------------------
---------------------------------------------------------------------------
NAHT-10   10189  10010       82            37.00  41.00     4/3.40    6.54

---------------------------------------------------------------------------
---------------------------------------------------------------------------
NAHT-11A  10403   9707       98             0.00  30.00   30/25.50    2.09
                                including   9.00  12.00     3/2.55    5.52
                                including  26.00  30.00     4/3.40    6.79

---------------------------------------------------------------------------
---------------------------------------------------------------------------
NAHT-11   10403   9704      270            10.00  11.00     1/0.85    4.33
                                including  22.00  28.00     6/5.10    8.60
                                including  22.00  25.00     3/2.55   16.43

---------------------------------------------------------------------------
---------------------------------------------------------------------------
NAHT-12   10375   9706      110             3.00   4.00     1/0.85    1.00
                                including  21.00  27.00     6/5.10    1.52
                                including  71.00  82.00    11/9.35    4.41
                                                                      3.99
                                                         (cut to 25 g/t Au)
                                including  80.00  82.00     2/1.70   23.19
                                                                     20.90
                                                         (cut to 25 g/t Au)

---------------------------------------------------------------------------
---------------------------------------------------------------------------
NAHT-14   10410   9994       92            68.00  70.00     2/1.70    2.62

---------------------------------------------------------------------------
---------------------------------------------------------------------------
NAHT-15   10325   9981       84            59.00  75.00   16/13.60    7.35
                                including  61.00  67.00     6/5.10   11.70
                                including  89.00 105.00   16/13.60    3.28
                                including  71.00  75.00     4/3.40    9.82
                                including 101.00 105.00     4/3.40    6.80

---------------------------------------------------------------------------
---------------------------------------------------------------------------
NAHT-16   10491   9564       91            48.00  51.00     3/2.55    1.53

---------------------------------------------------------------------------
---------------------------------------------------------------------------
NAHT-16A  10486   9641       92             8.00  10.00     2/1.70   10.03

----------------------------------------------------------------------------
----------------------------------------------------------------------------


    

Contacts:
Guyana Goldfields Inc.
Patrick Sheridan Jr.
President/CEO
(416) 628-5936
(416) 628-5935 (FAX)
Email: info@guygold.com
Website: www.guygold.com

Copyright 2008, Market Wire, All rights reserved.

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