Canadian Shield to Prepare NI 43-101 Technical Report on Estrella Gold-Silver Project, Peru

Canadian Shield Resources Ltd. (TSX VENTURE:EXP) ("Canadian Shield" or the
"Company") has contracted SRK Consulting (U.S.) to prepare a Technical Report,
consistent with the standards of NI 43-101 on the Company's Estrella gold &
silver property located in the Central Peru polymetallic belt. The property
contains 1,200 hectares and is located 130 km south of Huancayo in the
Department of Juancavalica. Canadian Shield holds a 100% interest in the
property.


The Estrella property contains a volcanic-hosted epithermal gold-silver system
with associated base-metal mineralization hosted within a north-south trending
graben. The property has a total of 615 surface rock samples and 33 drill holes
totalling 5,800 meters of drilling. Gold assays from outcrops and drill holes
range from 0.2 - 54.0 g/t and average 0.44 g/t gold. Silver mineralization
assays range from 15.0 - 1,400 g/t and average 21.15 g/t silver. Three different
styles of mineralization are present within a 1,200 meter north-south by 200
meter east-west zone, which remains open for expansion. The largest area of
mineralization occurs as a north-south trending, west dipping, irregular,
stratabound zone measuring 50 - 150 meters in thickness. This stratabound zone
contains variable grade gold and silver mineralization with disseminated and
vein hosted pyrite, tetrahedrite, galena and sphalerite. The zone has been
intersected along strike for 600 meters, and remains open to the north and
south. It also remains open up and down-dip. The second type of mineralization
consists of a flat-lying tabular zone 10 - 25 meters thick that is located at or
near surface. This flat lying zone occurs above the stratabound zone. It
measures approximately 200 meters east-west and 130 meters north-south. The
third type of gold and silver mineralization cross-cuts both the stratabound
zone and the flat-lying mineralization. It occurs in north and northeast
trending, sub-vertical fault zones, which outcrop at surface. It has also been
intersected in drill holes, which extend north of the stratabound zone for 600
meters. The sub-vertical zone locally contains some of the highest grade
mineralization on the property, including drill intersections of up to 11 meters
@ 311.2 g/t silver and 0.59 g/t gold (RC-E10 from 43 - 54 m). It also remains
open along trend to the north and south and at depth. 


About Canadian Shield Resources Ltd. (TSX VENTURE:EXP) Canadian Shield is a
precious metals exploration and development company focused on
strategically-located properties in Peru and Chile. Canadian Shield has seven
precious metal exploration projects in Peru and one in Chile. Mr. Keith A.
Laskowski, MSc., is a Qualified Person for the purposes of National Instrument
43-101 Standards of Disclosure for Mineral Projects of the Canadian Securities
Administrators, and has prepared, reviewed and verified the technical
information contained in this news release The Company's shares are listed on
the TSX Venture Exchange (Trading Symbol TSX-V: EXP). Further information is
available at Canadian Shield's website: www.canadianshieldresources.com. The
Shareholders recently approved a name change of the Company to ESTRELLA GOLD
CORPORATION, which is expected to become effective August 1, 2010.


STATEMENTS IN THIS NEWS RELEASE, OTHER THAN PURELY HISTORICAL INFORMATION,
INCLUDING STATEMENTS RELATING TO THE COMPANY'S FUTURE PLANS AND OBJECTIVES OR
EXPECTED RESULTS, MAY INCLUDE FORWARD-LOOKING STATEMENTS. FORWARD-LOOKING
STATEMENTS ARE BASED ON NUMEROUS ASSUMPTIONS AND ARE SUBJECT TO ALL OF THE RISKS
AND UNCERTAINTIES INHERENT IN RESOURCE EXPLORATION AND DEVELOPMENT. AS A RESULT,
ACTUAL RESULTS MAY VARY MATERIALLY FROM THOSE DESCRIBED IN THE FORWARD-LOOKING
STATEMENTS.