Rockcliff Intersects Significant Copper and Zinc at Lon Property - 3.5% Copper, 0.6g/t Gold, 5.7% Zinc, 30.9g/t Silver across 1.8m including 5.3% Copper, 0.9g/t Gold, 8.7% Zinc, 46.5g/t Silver across 1.2m

Trading Symbol RCR: TSXV

TORONTO, April 28 /CNW/ - Rockcliff Resources Inc. (TSXV: RCR) is pleased to announce that drilling on its 100% owned Lon Deposit west of Snow Lake, Manitoba, continues to intersect significant VMS (copper-zinc rich) mineralization.  The deposit remains open in all directions.  Additional drilling will be required to determine the extent of mineralization of the deposit.

Highlights from the L11-06 to L11-10 are outlined below.

  • 1.9% copper, 0.2g/t gold, 1.3% zinc, 18.1g/t silver across 2.3m including
    2.1% copper, 0.3g/t gold, 1.5% zinc, 20.5g/t silver across 2.0m (Hole 6);
  • 3.5% copper, 0.6g/t gold, 5.7% zinc, 30.9g/t silver across 1.8m including
    5.3% copper, 0.9g/t gold, 8.7% zinc, 46.5g/t silver across 1.2m (Hole 8);
  • 1.5% copper, 0.3g/t gold, 1.9% zinc, 12.4g/t silver across 2.7m including
    2.4% copper, 0.5g/t gold, 3.1% zinc, 18.8g/t silver across 1.4m (Hole 9);
  • 1.6% copper, 0.2g/t gold, 1.4% zinc, 13.3g/t silver across 2.8m including
    2.9% copper, 0.3g/t gold, 2.8% zinc, 23.7g/t silver across 1.3m (Hole 10)

Significant assay results and the corresponding breakdown from drill holes L11-06 to L11-10 are tabulated below along with drill hole information.  The lengths reported are drill intersected core lengths and do not represent true widths.

Borehole From
(m)
To
(m)
Length
(m)
Copper
%
Gold
g/t
Zinc
%
Silver
g/t
Grid N/E/Azimuth/Dip
L11-06 242.3 244.6 2.3 1.9 0.2 1.3 18.1 10+00N/480E/270/59
includes 242.6 244.6 2.0 2.1 0.3 1.5 20.5  
                 
L11-07 267.5 269.0 1.5 0.8 0.2 2.2 7.7 10+00N/480E/270/66
includes 268.2 269.0 0.8 1.1 0.3 3.1 11.7  
                 
L11-08 167.2 169 1.8 3.5 0.6 5.7 30.9 10+25N/525E/270/55
includes 167.8 169 1.2 5.3 0.9 8.7 46.5  
                 
L11-09 233.5 236.2 2.7 1.5 0.3 1.9 12.4 10+25N/495E/270/64
includes 233.5 234.9 1.4 2.4 0.5 3.1 18.8  
                 
L11-10 244.6 247.4 2.8 1.6 0.2 1.4 13.3 10+25N/495E/270/71
includes 245 246.3 1.3 2.9 0.3 2.8 23.7  

Additional drill core samples (holes 11 to 15) have been sent to the lab and will be reported on when received. Please refer to the March 23, 2011 news release for significant assay results on holes L11-01 to 05.

Winter drilling at Lon is now complete with fifteen drill holes totalling over 5000m testing the Lon Zone across a strike length of approximately 150m and to a vertical depth of 300m.  Drilling has targeted the Lon Zone mineralized trend where previous drilling (1950s) discovered the Lon Deposit (non-compliant with NI 43-101).  Mineralization consisting of chalcopyrite, sphalerite, pyrite and pyrrhotite is hosted in juvenile arc rocks.  The favourable juvenile arc rock package trends on the property for a distance of approximately 15 km.  Juvenile arc rocks of the Flin Flon greenstone belt host all of the known mines in the Flin Flon-Snow Lake mining camps and represent high priority geological trends for the discovery of VMS deposits.

Additional exploration (gridding, geophysics) on the Lon Property targeted the DC Zone located 8 km south of the Lon Deposit and along the favourable juvenile arc rock trend that hosts the deposit.  The DC Zone is hosted within a strongly altered juvenile arc rock package and is highlighted by a 6.12% zinc surface showing.  It is also located above an historical, untested, buried, 600m long geophysical conductor.  Rockcliff`s recently completed surface geophysics centered on the DC Zone and identified a DPEM conductor corresponding to the DC Zone surface mineralization.  The DPEM conductor was interpreted to be strengthening northward off the grid.  Additional exploration work after winter breakup will extend the DC grid and DPEM survey northward to determine the optimal area for drill testing the conductor.

Ken Lapierre, P.Geo., President & CEO of Rockcliff Resources Inc. and Mark Smethurst, P.Geo., M.Sc., VP Exploration of Rockcliff Resources Inc., are Qualified Persons under the definition of National Instrument 43-101.  Mr. Lapierre has reviewed and is responsible for all information in this press release.  Mr. Smethurst is responsible for verification and quality assurance of Rockcliff's exploration data and analytical results.  Samples of half core are packaged and shipped directly from Rockcliff's field office to TSL Laboratories (TSL), Saskatoon, Saskatchewan.  TSL is a Canadian assay laboratory and is accredited under ISO/IEC 17025.   Each bagged core sample is dried, crushed to 70% passing 10 mesh and a 250g pulp is pulverized to 95% passing 150 mesh for assaying.  A 0.5g cut is taken from each pulp for base metal analyses and leached in a multi acid (total) digestion and then analyzed for copper, lead, zinc and silver by atomic absorption.  Gold concentrations are determined by fire assay using a 30g charge followed by an atomic absorption finish.  Samples greater than upper detection limit (3000 ppb) are reanalyzed using fire assay gravimetric using a 1 AT charge.   Rockcliff inserted certified blanks and standards in the sample stream to ensure lab integrity.

Rockcliff Resources Inc.
Rockcliff Resources Inc. is a Canadian resource exploration company focused on discovery and advancement of its high-quality mineral assets at its Snow Lake Project. Rockcliff presently controls the Snow Lake Project totalling in excess of 500 km2 located within and proximal to the Snow Lake Mining Camp.  The project presently includes one NI 43-101 Indicated Resource (Rail), two former VMS Mines (Spruce Point and Dickstone), one historic VMS deposit (Lon), the Tower Deposit, one former gold mine (Century Mine) and one gold deposit (C-Zone) as well as additional areas with potential for VMS (copper-rich) and gold mineralization.  Rockcliff also controls precious metal properties in northern Ontario.

Forward-Looking Statement:

Some of the statements contained herein may be forward-looking statements which involve known and unknown risks and uncertainties.  Without limitation, statements regarding potential mineralization and resources, exploration results, and future plans and objectives of the Company are forward looking statements that involve various risks.  The following are important factors that could cause the Company's actual results to differ materially from those expressed or implied by such forward looking statements: changes in the world wide price of mineral commodities, general market conditions, risks inherent in mineral exploration, risks associated with development, construction and mining operations, the uncertainty of future profitability and the uncertainty of access to additional capital. There can be no assurance that forward-looking statements will prove to be accurate as actual results and future events may differ materially from those anticipated in such statements.  Rockcliff undertakes no obligation to update such forward-looking statements if circumstances or management's estimates or opinions should change. The reader is cautioned not to place undue reliance on such forward-looking statements.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

SOURCE Rockcliff Resources Inc.

For further information:

please visit our website at www.rockcliffresources.com or contact Ken Lapierre, P.Geo., President & CEO of Rockcliff Resources Inc. at (416) 863-9800 or at klapierre@rockcliffresources.com

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