Rockcliff Resources Inc.
TSX VENTURE : RCR

Rockcliff Resources Inc.

December 19, 2007 09:04 ET

Rockcliff Resources Inc.: Drilling Hits High Grade VMS Mineralization at Snow Lake

SUDBURY, ONTARIO--(Marketwire - Dec. 19, 2007) - Rockcliff Resources Inc. (TSX VENTURE:RCR) is pleased to announce that assay results rich in copper, zinc and gold have been received for the Rail Property on its Snow Lake VMS Project located in central Manitoba. To date, 14 widely spaced surface drill holes have been completed within the historical Rail VMS Deposit and along the adjacent Rail Zone horizon. Significant VMS style mineralization has been intersected across a 550m strike length and to a vertical depth of 300m. The mineralization remains open along strike and at depth. Down hole geophysical probing of all fourteen holes and a deep penetrating surface EM survey is currently in progress. Drilling on the Rail Property in 2008 will focus on the size potential and relationship between the Rail VMS Deposit and the mineralized Rail Zone horizon intersected along strike of the deposit. Drilling will also focus on VMS targets along the 5km long conductive trend of favorable juvenile arc rocks on the property that host the Rail VMS Deposit and Rail Zone horizon. Juvenile arc assemblage rocks presently host all of the mined VMS deposits in the Flin Flon and Snow Lake camps.

Highlights of the first seven drill holes from the Rail Property are tabulated below:

- 7.16m grading 2.12% copper, 0.63% zinc and 0.50g/t gold including 2.35m grading 5.02% copper, 1.28% zinc and 1.26g/t gold;

- 5.56m grading 2.15% copper, 0.84% zinc and 0.42g/t gold, including 2.51m grading 3.53% copper, 1.58% zinc and 0.44g/t gold;

- 5.19m grading 2.95% copper, 1.22% zinc and 0.60g/t gold including 3.57m grading 3.89% copper, 1.65% zinc and 0.79g/t gold and

- 2.21m grading 3.28% copper, 0.08% zinc and 0.42g/t.

Highlights from the first 7 of 14 (RL07-01 to 07) surface drill holes have been received from the analytical lab and are tabulated below. The remaining seven drill holes (RL07-08 to 14) will be reported once Rockcliff receives the results. The lengths reported are drill intersected core lengths and do not represent true widths.



---------------------------------------------------------------------------
Borehole From To Length Copper Zinc Gold Grid N/E/Azimuth/
(m) (m) (m) % % g/t Dip(i)
---------------------------------------------------------------------------
RL07-02 10.29 15.85 5.56 2.15 0.84 0.42 42 N/56+84 E/270/-68
---------------------------------------------------------------------------
includes 10.29 12.80 2.51 3.53 1.58 0.44
---------------------------------------------------------------------------
includes 10.29 11.29 1.00 5.07 2.37 1.61
---------------------------------------------------------------------------
RL07-04 136.63 138.84 2.21 3.28 0.08 0.42 31+95 N/62+10 E/270/-45
---------------------------------------------------------------------------
RL07-05 180.37 182.73 2.36 1.67 0.10 0.23 31+95 N/62+10 E/270/-56
---------------------------------------------------------------------------
includes 180.90 181.97 1.07 2.92 0.11 0.47
---------------------------------------------------------------------------
RL07-06 117.13 122.32 5.19 2.95 1.22 0.60 38 N/60+50 E/270/-45
---------------------------------------------------------------------------
includes 117.13 120.70 3.57 3.89 1.65 0.79
---------------------------------------------------------------------------
includes 119.48 120.70 1.22 7.48 2.38 1.54
---------------------------------------------------------------------------
RL07-07 146.15 153.31 7.16 2.12 0.63 0.50 38 N/60+50 E/270/-54
---------------------------------------------------------------------------
Includes 146.15 149.57 3.41 3.77 0.95 0.91
---------------------------------------------------------------------------
includes 147.22 149.57 2.35 5.03 1.28 1.26
---------------------------------------------------------------------------
(m) equals metres, % equals percentage, g/t equals grams per tonne, (i)
Imperial grid used. Co-ordinates are approximate. RL07-01 overshot Rail
Deposit. RL07-03 undercut Rail Deposit.


The historical Rail VMS Deposit and the Rail Zone mineralization consist of stringers and massive sulphides lenses of pyrite, pyrrhotite, chalcopyrite and sphalerite. The mineralization is associated with a 5km long conductive horizon hosting a pervasive, highly altered juvenile arc rock package. Rockcliff's drilling has intersected the Rail VMS Deposit and adjacent Rail Zone horizon across a strike length of 550m and to a vertical depth of 300m. The mineralization remains open along strike and at depth. The historical Rail VMS Deposit averages 1.6m wide, with a strike length of approximately 300m and a vertical depth of 150m. Rockcliff's drilling suggests that the Rail VMS Deposit could potentially be more extensive then previously interpreted. Down hole geophysical probing of all 14 holes and a deep penetrating EM geophysical survey are presently in progress.

Rockcliff has the exclusive right to earn a 100% interest in the Rail Property from Hudson Bay Exploration and Development Company Limited (HBED), a wholly owned subsidiary of HudBay Minerals Inc. (HBM:TSX). If Rockcliff earns its interest in the Rail Property, HBED will receive a 2% Net Smelter Return Royalty. If Rockcliff earns a 100% interest in the Rail Property, HBED then has the right to acquire up to a 65% interest in the Rail Property. Please refer to the News Release dated March 23, 2007 for further details.

"We are delighted to have commenced our drill evaluation of our Snow Lake VMS Project. In 2008, we anticipate drilling a minimum of 30,000 metres, concentrating on our five known historical VMS deposits and additional areas with known untested VMS conductors identified by previous exploration. Early in 2008, we anticipate the completion of a large airborne geophysical survey over the entire 1,200 km2 project. This will allow us the opportunity to search for new VMS targets using state of the art airborne VTEM technology by Geotech Ltd.," said Ken Lapierre President and CEO of Rockcliff. "It is an exciting time for our shareholders and we remain enthusiastic and committed to our growth strategy through our exceptional people and our world class Snow Lake VMS Project".

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 Acme Analytical Laboratories Ltd. (Acme Labs), Vancouver, British Columbia. Acme Labs is a Canadian assay laboratory and is accredited under ISO 9001:2000.

Each bagged core sample is dried if necessary, crushed and a 250g pulp is pulverized to 95% passing minus 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 22 elements (including copper, lead, zinc and silver) by ICP-ES. Gold concentrations are determined by fire assay using a 30g charge followed by an ICP-ES 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. Rockcliff presently controls the Snow Lake VMS Project totaling in excess of 1,200 km2 and located within the Flin Flon greenstone belt. The project presently includes five historical VMS deposits (Lon, Rail, Reed, Kof, and Sylvia) and numerous additional untested areas with VMS potential. Additional targets in the project area include nickel-copper-platinum group mineralization hosted in mafic and ultramafic rocks. Rockcliff also controls the Shihan VMS Project located 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.

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

Contact Information