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GYD Grayd Resource Corporation

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Share Name Share Symbol Market Type
Grayd Resource Corporation TSXV:GYD TSX Venture Common Stock
  Price Change % Change Share Price Bid Price Offer Price High Price Low Price Open Price Shares Traded Last Trade
  0.00 0.00% 0 -

Grayd Reports Expansion of Tarachi Mineralization

08/02/2011 1:00pm

Marketwired Canada


Grayd Resource Corporation (TSX VENTURE:GYD) is pleased to provide a drilling
update for the Tarachi gold project, part of its 100% owned La India project in
Sonora, Mexico.


Tarachi is a very large mineralized system that encompasses zones with
significant gold content. Mineralization starts at surface. Holes recently
completed expanded the known boundaries of the system and continued to outline
areas of higher gold grades. Drilling in the Llano zone has outlined a 500 by
400 metre area with higher grades that is open along strike and to depth. New
intersections include RC-10-584 with 74.7 m at 1.03 g/t Au with a high grade
core of 22.9 m at 2.58 g/t Au, and RC-11-588 with 44.2 m at 0.93 g/t Au.


New results also include intercepts from RC-11-590, a similar mineralized zone
700 metres northwest of the Llano zone at Llano Grande. This entire 251 m hole
intersected anomalous gold averaging 0.30 g/t Au, including a 16.8 m interval of
1.01 g/t Au. The hole bottomed in a 24 m interval averaging 0.64 g/t gold.


Marc Prefontaine, President and CEO of Grayd, stated: "Our exploration efforts
continue to demonstrate that a very large mineral system underlies Tarachi. We
have found similar looking quartz veins in sporadic outcrop over a 2 by 3
kilometre area. Every hole we have drilled to date on this target has
intersected at least some +0.3 g/t Au material, and many holes are mineralized
from top to bottom. Our team is working hard on a model to predict the location
of higher grade zones within the larger system. Most of Tarachi has not yet been
drill tested. It is a very exciting target and a focus of the Company's
exploration efforts going forward."


Ten new reverse circulation (RC) drill holes drilled in late 2010 and January
2011 are reported herein. Nine of the holes were targeted on a concentration of
sheeted and stockwork quartz veins exposed in the Llano zone. As in previous
drilling, higher grade intersections occur within extensive zones of alteration
with anomalous gold that usually encompass the entire hole. A summary of all
drill results from Tarachi to date is given below.


Besides focusing on the exploration of Tarachi, Grayd will begin feasibility
level studies on the existing resource area that was subject to a Preliminary
Economic Assessment, reported on October 21, 2010. This assessment showed a 51%
internal rate of return, a US$187 million net present value (pre-tax, 5%
discount rate), a nine-year mine life and nearly 850,000 ounces of gold
produced.


Tarachi Geology

Gold mineralization at Tarachi developed over a greater than 4 km(2)area with
multi-stage sheeted and stockwork quartz veins in dacitic volcanic rocks and
subvolcanic dacitic intrusions. Exposures of veined rock are poor and old
workings very sparse; therefore, the area has been separated into three zones
with veined exposures known as Llano, Llano Grande and Las Huejas. Exposures of
mineralized rock and drill core display a vein paragenesis characteristic of
episodic or pulsed hydrothermal events. These events recorded an early stage
black quartz breccia and veins with irregular vein walls and low gold grades
(less than 0.1-0.5g/t Au) crosscut by white quartz veins with planar vein walls
and molybdenite cores (less than 0.1-0.5g/t Au, greater than 100 ppm Mo). Later
black banded and botryiodal sheeted quartz veins, associated with higher gold
grades (greater than 0.5-5.0 g/t Au, up to 22.9 g/t Au), crosscut the earlier
quartz. Latest banded and botryiodal tan quartz veins with planar vein walls
carry trace gold (less than 0.1 g/t Au) and brassy pyrite. All quartz veins are
less than 2 cm-in-width and lack distinct alteration halos. Alteration with
illite - kaolinite +/- dickite defines a central zone closely associated with
the highest gold grades that is progressively enveloped by illite - smectite -
pyrite, and a distal zone of smectite - hematite - carbonate - pyrite.
Concentrations of quartz veins are associated with west, north-northwest, and
northeast-trending fracture zones. These fracture zones also display slickenside
striae that record strike-slip and dip-slip displacement interpreted as the
result of the later Miocene extensional tectonics.




Table 1 Tarachi drill summary (new drilling)

---------------------------------------------------------------------------
                              Depth               From     To  Width     Au
Hole             E        N      (m)   Az   Dip     (m)    (m)    (m)  (g/t)
---------------------------------------------------------------------------
RC-11-593   699888  3184962   160.0    20   -50  117.3  160.0   42.7   0.33
---------------------------------------------------------------------------
RC-11-592   700053  3184925   251.5    10   -50    0.0  102.1  102.1   0.45
---------------------------------------------------------------------------
                                      including   71.6  102.1   30.5   0.87
---------------------------------------------------------------------------
RC-11-591   700399  3185128   227.1   220   -50   18.3   67.1   48.8   0.50
---------------------------------------------------------------------------
RC-11-590   699801  3185551   251.5    10   -50      0  251.5  251.5   0.30
---------------------------------------------------------------------------
                                      including  167.6  184.4   16.8   1.01
---------------------------------------------------------------------------
                                      including  227.1  251.5   24.4   0.64
---------------------------------------------------------------------------
RC-11-589   700198  3184803   251.5    10   -50   51.8  103.6   51.8   0.41
---------------------------------------------------------------------------
RC-10-588   700278  3185073   166.1    60   -50    4.6   48.8   44.2   0.93
---------------------------------------------------------------------------
                                      including   38.1   48.8   10.7   2.03
---------------------------------------------------------------------------
RC-10-587   699995  3185078   251.5   190   -60   19.8   44.2   24.4   0.35
---------------------------------------------------------------------------
RC-10-586   700002  3184844   251.5    10   -60   99.1  192.0   93.0   0.52
---------------------------------------------------------------------------
RC-10-585   700129  3184906   205.7    10   -60    6.1  123.4  117.3   0.50
---------------------------------------------------------------------------
RC-10-584   700221  3184982   275.4   225   -60   65.5  190.5  125.0   0.68
---------------------------------------------------------------------------
                                      including  115.8  190.5   74.7   1.03
---------------------------------------------------------------------------
                                      including  153.9  176.8   22.9   2.58
---------------------------------------------------------------------------


Table 2 Tarachi drill summary (previously released holes)

------------------------------------------------------------------------
Hole            Depth (m)     From(m)       To(m)    Width(m)    Au (g/t)
------------------------------------------------------------------------
RC-10-583          254.5        64.0        88.4        24.4        0.35
------------------------------------------------------------------------
RC-10-582          269.8        13.7       236.2       222.5        0.50
------------------------------------------------------------------------
               including       160.0       230.1        70.1        0.95
------------------------------------------------------------------------
RC-10-581          160.0         7.6       112.8       105.2        0.18
------------------------------------------------------------------------
RC-10-580          306.3        77.7       208.8       131.1        0.19
------------------------------------------------------------------------
RC-10-579          233.2        13.7        99.1        85.3        0.31
------------------------------------------------------------------------
RC-10-578          243.8        42.7       228.6       185.9        0.29
------------------------------------------------------------------------
RC-10-577          245.4       132.6       245.4       112.8        0.39
------------------------------------------------------------------------
RC-10-576          213.4        99.1       134.1        35.1        0.24
------------------------------------------------------------------------

------------------------------------------------------------------------
DDH-10-169           226         0.0         9.0         9.0        0.55
------------------------------------------------------------------------
DDH-10-168           194         9.0        36.0        27.0        0.67
------------------------------------------------------------------------
DDH-10-167         250.0           6         250       244.0        0.85
------------------------------------------------------------------------
                                 108         198        90.0        1.21
------------------------------------------------------------------------
DDH-10-166         324.8    No significant intersection                     
------------------------------------------------------------------------
DDH-10-165         327.9    No significant intersection                     
------------------------------------------------------------------------
DDH-10-164         207.4       161.0       166.0         5.0        0.70
------------------------------------------------------------------------
DDH-10-163         253.2    No significant intersection                     
------------------------------------------------------------------------
DDH-10-162         349.2         9.0        46.0        37.0        0.38
------------------------------------------------------------------------
DDH-10-161         373.6       136.0       247.0       111.0        0.43
------------------------------------------------------------------------
               including       144.0       158.0        14.0        1.07
------------------------------------------------------------------------
DDH-10-160         205.9        24.0       142.0       118.0        0.38
------------------------------------------------------------------------
               including        41.0        75.0        34.0        0.62
------------------------------------------------------------------------
DDH-10-159         199.8         9.0       141.0       132.0        0.50
------------------------------------------------------------------------
               including        68.0       105.0        37.0        0.86
------------------------------------------------------------------------
DDH-10-158         410.7        11.0       253.0       212.0        0.31
------------------------------------------------------------------------
               including       152.0       184.0        32.0        0.69
------------------------------------------------------------------------
DDH-10-157        179.95         0.0       180.0       180.0        0.28
------------------------------------------------------------------------
               including       101.0       123.0        22.0        0.74
------------------------------------------------------------------------
DDH-10-153         157.1        15.3       157.1       141.9        0.23
------------------------------------------------------------------------
               including        23.8        55.8        32.0        0.43
------------------------------------------------------------------------
DDH-10-152         189.1       146.0       154.0         8.0        0.67
------------------------------------------------------------------------
DDH-10-151         138.8         3.0        16.0        16.0        0.41
------------------------------------------------------------------------
DDH-10-150         164.7        55.0       117.0        62.0        0.40
------------------------------------------------------------------------
DDH-10-149         221.2         0.0       191.0       191.0        0.85
------------------------------------------------------------------------
               including        98.0       186.0        88.0        1.54
------------------------------------------------------------------------
               including       146.0       180.0        34.0        2.23
------------------------------------------------------------------------
DDH-10-148         212.0         8.0       212.0       204.0        0.47
------------------------------------------------------------------------
               including        22.0        96.0        74.0        0.95
------------------------------------------------------------------------
DDH-10-147         151.0         7.0       110.0       103.0        0.18
------------------------------------------------------------------------
DDH-10-129            93         0.0        93.0        93.0        0.27
------------------------------------------------------------------------
               including         0.0         9.0         9.0        1.22
------------------------------------------------------------------------
DDH-10-128        100.65         0.0       100.6       100.6        0.27
------------------------------------------------------------------------
               including         0.0        36.0        36.0        0.51
------------------------------------------------------------------------
DDH-10-127         164.7         0.0       109.0       109.0        0.28
------------------------------------------------------------------------
               including         0.0        19.0        19.0        0.58
------------------------------------------------------------------------
               including        87.0       109.0        22.0        0.57
------------------------------------------------------------------------
DDH-10-126         303.3         0.0        94.0        94.0        0.43
------------------------------------------------------------------------
DDH-10-125         300.4         0.0       159.0       159.0        0.22
------------------------------------------------------------------------
DDH-10-124        301.95         6.0       302.0       296.0        0.21
------------------------------------------------------------------------
DDH-10-123         276.4         2.2       165.5       163.3        0.33
------------------------------------------------------------------------
               including         2.2        58.0        55.8        0.71
------------------------------------------------------------------------



The La India property is a feasibility stage heap leach gold project located in
the prolific Mulatos gold belt of Mexico's Sonora state. Tarachi is located 10
kilometers north of the resource area that was analyzed in a recently reported
Preliminary Economic Assessment (PEA) and represents a separate gold-rich
mineral system. Results of the PEA, reported on October 21, 2010, show a 51%
internal rate of return, a US$187 million net present value (pre-tax, 5%
discount rate), a nine-year mine life and nearly 850,000 ounces of gold
produced.


Hans Smit, P.Geo., VP Exploration for Grayd, is the Qualified Person directing
the exploration at La India. Samples are sent to the ALS Chemex facility in
Hermosillo for sample preparation, and then to the ALS Chemex laboratory in
Vancouver for gold assay and ICP. QA/QC procedures used include assay standards
and blanks.


The information in this news release may contain forward-looking statements.
When used in this release, words such as "estimate", "expect", "anticipate" and
"believe" as well as similar expression are intended to identify forward-looking
statements. Such statements are used to describe management's future plans,
objects, and goals for the Company and therefore involve inherent risks and
uncertainties. The reader is cautioned that actual results, performance or
achievements may be materially different from those implied or expressed in such
statements, which speak only as of the date the statements were made. The
Company does not update forward-looking statements continually as conditions
change.


Note: To view the map associated with this release, please click the following
link: http://media3.marketwire.com/docs/gyd0208.pdf


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