Rockcliff Resources Inc.
TSX VENTURE : RCR

Rockcliff Resources Inc.

February 27, 2007 08:48 ET

Rockcliff Drilling Hits High Grade Zinc-Silver Massive Sulphides

SUDBURY, ONTARIO--(CCNMatthews - Feb. 27, 2007) - Rockcliff Resources Inc. (TSX VENTURE:RCR) is pleased to announce that massive sulphides rich in zinc and silver were intersected in surface boreholes at its 100% owned Shihan VMS Property located in central Ontario. Rockcliff will continue to systematically drill the Zinc Zone to determine its potential to host additional areas of high grade mineralization and to determine the zone's strike and depth extent.

Highlights of drill intersections from the Zinc Zone are tabulated below, including:



- 1.79 metres grading 15.30% zinc , 0.90% lead and 7.61 opt silver,
including 0.70 metres grading 30.78% zinc, 1.36% lead and 12.30 opt
silver;
- 5.83 metres grading 7.23% zinc, 0.47% lead and 6.88 opt silver, including
1.22 metres grading 25.74% zinc, 1.93% lead and 17.44 opt silver.


The Zinc Zone consists of stringers and massive sulphides lenses along a stratigraphic contact and is associated with a pervasive, highly altered felsic rock package. Furthermore, Rockcliff's drilling indicates that the Zinc Zone could potentially be more extensive than previously interpreted. Additional stacked zones of zinc and silver mineralization (Lens 1, 2 and 3) were also identified above the Zinc Zone.

Highlights of significant Rockcliff borehole assay results are tabulated below. The lengths reported are drill intersected core lengths and do not represent true widths.



--------------------------------------------------------------------------
Borehole From To (m) Length Zn % Ag-g/t (opt) Pb-% Au- Zone
(m) (m) ppb
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RS07-01 22.85 24.64 1.79 15.30 260.9 (7.61) 0.90 246 Zinc
--------------------------------------------------------------------------
includes 23.40 24.10 0.70 30.78 423.0 1.36 163 Zinc
(12.30)
--------------------------------------------------------------------------
RS07-02 42.00 44.00 2.00 1.30 5.0 (0.15) 0.03 94 Lens 1
--------------------------------------------------------------------------
48.80 50.00 1.20 1.10 4.0 (0.13) 0.02 93 Lens 2
--------------------------------------------------------------------------
52.00 54.60 2.60 1.73 24.7 (0.72) 0.11 62 Lens 3
--------------------------------------------------------------------------
62.30 67.68 5.83 7.23 236.0 (6.88) 0.47 341 Zinc
--------------------------------------------------------------------------
includes 65.62 67.67 2.06 16.41 576.4 1.24 848 Zinc
(16.81)
--------------------------------------------------------------------------
includes 66.10 67.68 1.22 25.74 597.9 1.93 794 Zinc
(17.44)
--------------------------------------------------------------------------

(m) equals metres, % equals percentage, g/t equals grams per tonne ,
opt equals ounce per ton, ppb equals parts per billion


To date, assay results from 2 of 7 completed surface boreholes (RS07-01 and 02) have been received. All 7 boreholes have intersected the Zinc Zone across a 50 metres strike length and to a maximum vertical depth of 110 metres. The Zinc Zone remains open along strike and to depth.

Additional assay results from completed boreholes will be released to the public once the Company receives the results from the assay lab.

The Rockcliff boreholes being reported today are confirmatory in nature and are exploring the general vicinity where boreholes completed in 1980 by Westfield Minerals Ltd. outlined a near surface historical resource of 67,132 tonnes grading 12% zinc and 280 g/t silver. A 43-101 report on the Shihan property by CCIC Inc. dated November 14, 2006 concluded that the historical resource was not compliant with National Instrument 43-101and as such should not be relied upon. However, the historical estimate was determined to be relevant to the Company's interest in the property and was most likely reliable based on the information and methods used at the time. They recommended significant additional drilling of the Zinc Zone and along its potential strike and depth extensions to determine the scope of the mineralization.

"We are delighted to have assembled a large, relatively under explored property that contains high grade zinc and silver mineralization within a zone associated with classic VMS signatures." said Ken Lapierre President and CEO of Rockcliff. "The fact that the Shihan property also hosts numerous untested geophysical drill targets associated with felsic rocks across its 20 km strike length bodes well for this and future drill programs."

QA-QC STATEMENT

Peter Wood, P.Eng., P.Geo., VP Exploration of Rockcliff, a qualified person under the definition of National Instrument 43-101, is responsible for the 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 Accurassay Laboratories in Thunder Bay, Ontario. Accurassay is a Canadian assay lab accredited by the Standard Council of Canada to ISO/IEC 17025 guidelines for precious metal and base metal analyses and meets all of the requirements outlined for NI 43-101.

Each bagged core sample is dried if necessary, crushed and pulverized to +90% minus 150 mesh and a 250-gram pulp is then prepared for assaying. A 10 g cut is taken from each pulp for base metal and ICP analyses and leached in a multi acid (total) digest and then analyzed for a variety of metals (including copper, lead, silver and zinc) by ICP-AES. Ore grade assays ( greater than 5000ppm) are then determined by atomic absorption. Gold concentrations are determined by fire assay using a 1 assay-ton charge followed by an atomic absorption finish. 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 the acquisition and development of high-quality mineral assets associated with world class geology and in world class mining camps.

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.

The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this release.

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