CRI Churchill Resources Inc

Castle Resources Inc. (TSX VENTURE:CRI) ("Castle" or the "Company") is pleased
to announce it has begun drilling at its 100% owned Granduc Copper Project
located near Stewart in northwest B.C.


"Castle's primary objective for the surface drill program this year is to expand
the known footprint of copper mineralization," stated Mr. Mike Sylvestre,
President & COO of Castle Resources. "Based on the initial resource estimate SRK
published in February 2011, historical Newmont and Esso assays, recent Bell
Copper drill results and historical non NI 43-101 estimates, we are confident we
will be able to demonstrate the potential for a much larger and significant
copper resource at the Granduc."


Castle's surface program will focus on growing the inferred resource initially
published by SRK Consulting by drilling downdip on the main Granduc zone beneath
the 1600 foot horizon identified as an historical non NI 43-101 compliant
resource estimate of 24 million tons grading 1.82% Cu (see Granduc Technical
Report dated July 5, 2010). Castle will also target the South Zone that Bell
Copper successfully drilled in 2005/06 to delineate additional copper
mineralization (see Bell Copper release dated Dec 14, 2005) in addition to
surface drilling on the North Zone. The focus of the surface drilling is to
graduate the exploration potential identified by SRK in their recent NI 43-101
resource estimate dated February 28, 2011 into a resource category.


Beginning last month, Castle re-established a large exploration camp to support
drilling and exploration operations at the Granduc Copper Project. Minconsult
Exploration Services Ltd. currently manages all camp logistics and operations,
including the assembly of a highly qualified geological technical team that will
log and process all core under the supervision of Castle's Exploration Manager.
Stewart based More Core Diamond Drilling Services Ltd. is managing all drilling
operations at the Granduc. To facilitate ongoing camp and drilling activities,
Castle has engaged VIH Helicopters Ltd. to provide helicopter support for all
operations. 




Granduc Resource Estimate:                                                  

--  SRK Consultants provided the following NI 43-101 compliant resource
    estimate using a 0.8% Cu cut-off grade: Indicated Resources of 3.75
    million tonnes grading 1.59% Cu containing 131.4 million pounds of
    copper; Inferred Resources of 15.8 million tonnes grading 1.36%
    containing 471.5 million pounds of copper 
--  Exploration Potential is estimated to contain an additional 17 to 23
    million tonnes grading between 1.3% Cu to 1.6% Cu. The potential
    quantity and grade of the exploration potential is conceptual in nature
    and there has been insufficient exploration to define a mineral
    resource. It is uncertain if further exploration will result in the
    exploration targets being delineated as a mineral resource 
--  View Castle press release dated February 28, 2011 for complete NI 43-101
    Granduc resource, including Cu cut-off sensitivity, and identified
    exploration potential on the Main and North Zones  

Granduc Highlights:                                                         

--  Newmont and Esso Minerals operated the Granduc Mine between 1971-1984;
    processed over 15 million tonnes of ore grading 1.71% Cu; produced 420
    million pounds of copper (plus gold and silver credits); the mine was
    closed in 1984 due to low copper prices 
--  Operators of the Granduc Mine invested over $115 million from Oct 1965
    until start-up operations began in 1971; 17 km haulage tunnel remains in
    good condition today 
--  Mining operations at the Granduc Mine consisted of crushing underground
    then processing of up to 9000 tpd. The concentrate was trucked on a 54
    km all weather road to the year-round deep sea port facility in Stewart
    which remains in operation today 
--  Bell Copper's exploration activities between 2004 and 2007 have
    confirmed mineralization along a 4+ km trend, with the main Granduc
    orebody centrally located within the trend 



Brad Leonard, P. Geo., Castle's Exploration Manager, is the Qualified Person
responsible for the scientific and technical work (as defined under National
Instrument 43-101) discussed in this press release, and has reviewed this press
release.


About Castle Resources

Castle Resources Inc. is a Toronto-based junior mineral development company
focusing on high-quality, advanced projects. Management's goal is to continue
the redevelopment of the 100% owned past producing Granduc Copper Mine and begin
new exploration activities; as well, management is quickly advancing the Elmtree
Gold Project in New Brunswick toward feasibility in 2011. Castle currently has
$15 million in treasury and has issued and outstanding shares of 106 million.


For more information please visit the Castle Resources' website at
www.castleresources.com.


Disclaimer

Certain statements contained in this news release may contain forward-looking
information within the meaning of Canadian securities laws. Such forward-looking
information is identified by words such as "estimates", "intends", "expects",
"believes", "may", "will" and include, without limitation, statements regarding
the company's plan of business operations (including plans for progressing
assets), estimates regarding mineral resources, projections regarding
mineralization and projected expenditures. There can be no assurance that such
statements will prove to be accurate; actual results and future events could
differ materially from such statements. Factors that could cause actual results
to differ materially include, among others, metal prices, risks inherent in the
mining industry, financing risks, labour risks, uncertainty of mineral resource
estimates, equipment and supply risks, title disputes, regulatory risks and
environmental concerns. Most of these factors are outside the control of the
company. Investors are cautioned not to put undue reliance on forward-looking
information. Except as otherwise required by applicable securities statutes or
regulation, the company expressly disclaims any intent or obligation to update
publicly forward-looking information, whether as a result of new information,
future events or otherwise.


This news release does not constitute an offer to sell or solicitation of an
offer to sell any of the securities in the United States. The securities have
not been and will not be registered under the United States Securities Act of
1933, as amended (the "U.S. Securities Act") or any state securities laws and
may not be offered or sold within the United States or to a U.S. Person unless
registered under the U.S. Securities Act and applicable state securities laws or
an exemption from such registration is available.

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