Guyana Goldfields Inc.
TSX : GUY

Guyana Goldfields Inc.

April 02, 2007 08:01 ET

Guyana Goldfields Inc.: Aurora Exploration Update-221m @ 4.72 g/t Au.

TORONTO, ONTARIO--(CCNMatthews - April 2, 2007) - Guyana Goldfields Inc.(TSX:GUY) -

The Company is pleased to report highlights of seventeen diamond drill holes from four different zones at its' 100% owned Aurora Property, Guyana.

Rory's Knoll

The Company currently has two diamond drill rigs committed to exploring and delineating the deeper sections of the Rory's Knoll mineralized zone utilizing the Devicotm directional drilling technology. This program is designed to explore for gold mineralization between vertical depths of 600 metres to 1200 metres below surface and to position acceptable "piercing point" density for resource delineation calculation.

Holes RKD-60DV2 and RKD-60DV3L are the second and third holes designed to explore for gold mineralization between vertical depths of approximately 600 metres and 800 metres below surface. Both holes explored the eastern portion of the deposit, with RKD-60DV3L tracing the eastern edge of the deposit at these depths. Assay results are summarized below.



--------------------------------------------------------------------------
Mineralized Core Length(m)
------------------------- Grade
Hole # Location From To Length g/t Au
--------------------------------------------------------------------------
RKD-60DV2 Kick-off point at 501m 687 690 3.00 2.62
from RKD-60 -------------------------------------
731 952.95 221.95 4.72
-------------------------------------
4.52 (cut to 25 g/t Au)
-------------------------------------
including 731 795 64.00 8.58
-------------------------------------
8.13 (cut to 25 g/t Au)
-------------------------------------
731 741 10.00 17.98
-------------------------------------
16.63 (cut to 25 g/t Au)
-------------------------------------
757.5 783 25.50 11.57
-------------------------------------
10.96 (cut to 25 g/t Au)
-------------------------------------
807 817.5 10.50 9.10
-------------------------------------
8.48 (cut to 25 g/t Au)
-------------------------------------
925.5 936 10.50 8.06
-------------------------------------
7.28 (cut to 25 g/t Au)
-------------------------------------
967.5 973 5.50 1.71
-------------------------------------
1017 1018 1.00 11.48
--------------------------------------------------------------------------
RKD-60DV3 Kick-off point at 492m 765 776 11.00 2.69
from RKD-60 -------------------------------------
790 794 4.00 5.90
-------------------------------------
804 812 8.00 2.05
--------------------------------------------------------------------------


---------------------------------------------------------------------------
Mineralized Core Length(m)
-------------------------- Grade
Hole # Location From To Length g/t Au
---------------------------------------------------------------------------
RKD-60DV3 Kick-off point at 492m 822 866 44.00 4.27
from RKD-60 --------------------------------------
3.71 (cut to 25 g/t Au)
--------------------------------------
Including 846 856 10.00 13.83
--------------------------------------
11.36 (cut to 25 g/t Au)
---------------------------------------------------------------------------

(i)Distances are down hole depths and are not absolute vertical distances
from surface


Higher grade gold mineralization was intersected in both holes with hole RKD-60DV2 returning 8.58 g/t Au.over 64 metres.

Hole RKD-62DV1L is the first "cut" off of mother hole RKD-62. The "62" series of holes are designed to explore for gold mineralization between approximate vertical depths of 1000 metres to 1200 metres. Results are summarized below.



----------------------------------------------------------------------
Mineralized Core Length (m)
----------------------------- Grade
Hole # Location From To Length g/t Au
----------------------------------------------------------------------
RKD- Kick-off point at 1089 1417.5 328.50 2.43
62DV1L 510m --------------------------------------------
from RKD-62 2.40 (cut to 25 g/t Au)
--------------------------------------------
Including 1102.5 1113 10.50 4.41
--------------------------------------------
1141.5 1152 10.50 7.70
--------------------------------------------
7.50 (cut to 25 g/t Au)
--------------------------------------------
1146 1150 4.00 8.68
--------------------------------------------
8.25 (cut to 25 g/t Au)
--------------------------------------------
1165.5 1185 19.50 6.27
--------------------------------------------
6.02 (cut to 25 g/t Au)
--------------------------------------------
1171.5 1180.5 9.00 10.85
--------------------------------------------
10.29 (cut to 25 g/t Au)
--------------------------------------------
1225.5 1234.5 9.00 3.61
--------------------------------------------
1239 1246.5 7.50 4.92
--------------------------------------------
1255.5 1281 25.50 4.74
--------------------------------------------
4.54 (cut to 25 g/t Au)
--------------------------------------------
1263 1269 6.00 11.13
--------------------------------------------
10.26 (cut to 25 g/t Au)
--------------------------------------------
1309.5 1317 7.50 4.92
--------------------------------------------
1359 1375.5 16.50 3.25
--------------------------------------------
1392 1402.5 10.50 3.18
--------------------------------------------

(i)Distances are down hole depths and are not absolute vertical
distances from surface


Additional high grade gold mineralization was intersected in the eastern portion of the Rory's Knoll zone -10.5 metres @ 7.70 g/t Au, 19.5 metres @ 6.27 g/t Au and 6 metres @ 11.13 g/t Au.

Drilling to date has established a very strong probability that high grade gold mineralization, amenable to underground mining, exists below the open pittable portion of the Rory's Knoll zone. In addition the zone remains vertically and laterally open at depth. An aggressive drill program continues in this area.

Aleck Hill - Saprolite & Primary Zone Drilling

The Company reports an additional twelve holes from near surface drilling in the Aleck Hill zone approximately one kilometer west of Rory's Knoll. Better values were obtained in the near surface portion of this zone, with hole SPD-39 returning 18 metres @ 6.8 g/t Au and hole SPD-40 intersecting 19.59 g/t Au over 15 metres.



---------------------------------------------------------------------------
Location Mineralized Core Length (m) Grade
---------- -----------------------------------
Hole # North East Azimuth Dip From To Length g/t Au
---------------------------------------------------------------------------
SPD-39 9650 9760 90 -50 25.5 43.5 18.00 6.80
---------------------------------------------------------------------------
6.54 (cut to 25 g/t Au)
---------------------------------------------------------------------------
including 34.5 42.5 8.00 11.50
---------------------------------------------------------------------------
10.92 (cut to 25 g/t Au)
---------------------------------------------------------------------------
50 51 1.00 27.70
---------------------------------------------------------------------------
SPD-39A 9650 9760 90 -45 27 40.5 13.50 3.36
---------------------------------------------------------------------------
including 36 39 3.00 8.89
45.15 47.6 2.45 25.60
---------------------------------------------------------------------------
14.91 (cut to 25 g/t Au)
---------------------------------------------------------------------------
SPD-40 10150 9851 90 -45 25 28 3.00 1.18
---------------------------------------------------------------------------
37 40 3.00 2.50
---------------------------------------------------------------------------
47.5 62.5 15.00 19.59
---------------------------------------------------------------------------
8.88 (cut to 25 g/t Au)
---------------------------------------------------------------------------
including 52 59.5 7.50 38.46
---------------------------------------------------------------------------
17.04 (cut to 25 g/t Au)
---------------------------------------------------------------------------
SPD-41 10150 9850 90 -60 27 28.5 1.50 1.03
---------------------------------------------------------------------------
60 73.5 13.50 4.91
---------------------------------------------------------------------------
including 63 67.5 4.50 10.83
---------------------------------------------------------------------------
SPD-42 10200 9841 90 -45 no significant results
---------------------------------------------------------------------------
SPD-43 10200 9841 90 -60 no significant results
---------------------------------------------------------------------------
SPD-44 9550 9851 90 -45 no significant results
---------------------------------------------------------------------------
SPD-45 9550 9850 90 -60 no significant results
---------------------------------------------------------------------------
SPD-46 9500 9801 90 -45 44.2 45.2 1.00 7.32
---------------------------------------------------------------------------
SPD-47 9500 9800 90 -60 no significant results
---------------------------------------------------------------------------
SPD-48 9450 9851 90 -45 no significant results
---------------------------------------------------------------------------
SPD-49 9450 9851 90 -60 no significant results
---------------------------------------------------------------------------
AHD-40 10050 9609 90 -67 109 116.5 7.50 2.90
---------------------------------------------------------------------------
243.6 247 3.40 2.55
---------------------------------------------------------------------------
277 289.25 12.25 1.65
---------------------------------------------------------------------------
324.6 326.6 2.00 1.66
---------------------------------------------------------------------------
AHD-41 10100 9610 90 -65 93.45 94.45 1.00 1.10
---------------------------------------------------------------------------
137 144 7.00 3.25
---------------------------------------------------------------------------
181 193 12.00 0.85
---------------------------------------------------------------------------
272 289.35 17.35 1.01
---------------------------------------------------------------------------
AHD-42 10150 9614 90 -60 251.4 259 7.60 1.08
---------------------------------------------------------------------------
264 265.2 1.20 1.30
---------------------------------------------------------------------------

(i)Distances are down hole depths and are not absolute vertical distances
from surface

Drilling is ongoing in the Aleck Hill area.


Ongoing Exploration

The company continues to execute a very aggressive regional exploration program beyond the eight mineralized zones discovered in the golden mile. This regional program includes:

1. Approximately 2,500 auger samples have been collected to the north west of the golden mile. The southern portion of this is on strike with the golden mile and the area contains elevated stream sediment values.

2. An induced polarization survey is planned for the swamp vein area (1.3 km south of Rory's Knoll) to further define gold mineralization reported in the previous release.

3. Trenching in "area 4" southwest of the golden mile has exposed quartz vein stockworks with visible gold.

4. Field work in the unexplored area of historical workings locally known as "Caleb's workings" has uncovered underground gold workings surrounded by large areas that have been mined by hydraulic methods. It is located "on strike" of the regional northwesterly trending structural control of mineralization and is approximately 5km southeast of the Golden Square Mile, An exploration crew is now assigned in this area.

5. Exploratory drilling southeast of Rory's Knoll in the "KRD zone" has intersected 6.8 metres @ 3.47 g/t Au (between 154.9 to 161.7 metres). Follow up drilling is ongoing in this area.

About Guyana Goldfields

The Aurora exploration and drilling program is being carried out under the direction of Mr. Augusto Flores IV, a qualified person within the meaning of National Instrument 43-101. Mr. Flores has reviewed the exploration results contained in this news release. Core is split, with half sent to laboratories for fire assaying. The Company is currently utilizing the services of two independent laboratories, one of which is Loring Laboratories, a Canadian owned and operated facility, as well as the laboratory of a major Canadian mining company. The Company maintains an archive of half core samples and a photographic record of all cores for future reference. Sample blanks, duplicates and recognized standards were inserted into the sample stream at regular intervals.

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) $30 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 and through the Company's offices at:



Suite 301-141 Adelaide St. West
Toronto, ON, Canada
M5H 3L5

The TSX has not reviewed and does not accept responsibility for the adequacy or accuracy of this release.

Contact Information