Rockcliff Resources Inc.

Rockcliff Resources Inc.

March 03, 2008 08:30 ET

Rockcliff Hits VMS High Grade at the Rail Property 5.11m Grading 4.31% Copper, 2.68% Zinc and 0.61g/t Gold Including 3.12m Grading 6.18% Copper, 4.04% Zinc and 0.72g/t Gold

SUDBURY, ONTARIO--(Marketwire - March 3, 2008) - Rockcliff Resources Inc. (TSX VENTURE:RCR)(Tier 1) is pleased to announce that additional drilling has intersected high grade VMS mineralization rich in copper, zinc and gold at the Rail Property on its Snow Lake VMS Project located in central Manitoba. Hole RL08-23 intersected 3.12m grading 6.18% copper, 4.04% zinc and 0.72g/t gold within a mineralized envelope of 5.11m grading 4.31% copper, 2.68% zinc and 0.61g/t gold. To date, 27 surface drill holes have been drilled on the Rail Property and have intersected potentially continuous VMS style mineralization across a strike length of over 500 metres and to a vertical depth of 300 metres. Down hole geophysics and a surface, deep penetrating EM geophysical survey over the drill area indicate that mineralization is open along strike and below the depth of the present drilling. The VMS mineralization is associated with juvenile arc rocks, the same type of rocks that presently host all of the mined VMS deposits in the Flin Flon and Snow Lake camps.

Highlights from holes RL07-01 to 18 can be viewed on the Company's website at Highlights from holes RL07-19 to RL08-23 are tabulated below.

- 5.11m grading 4.31% copper, 2.68% zinc and 0.61g/t gold including
3.12m grading 6.18% copper, 4.04% zinc and 0.72g/t gold including
2.36m grading 7.13% copper, 3.73% zinc and 0.82g/t gold;
- 3.71m grading 1.50% copper, 0.81% zinc and 0.21g/t gold including
1.98m grading 2.30% copper, 1.11% zinc and 0.34g/t gold
- 2.14m grading 1.96% copper, 0.42% zinc and 0.56g/t gold including
0.46m grading 6.44% copper, 0.97% zinc and 2.26g/t gold and
- 1.79m grading 1.76% copper, 0.17% zinc and 0.52g/t gold including
1.41m grading 2.00% copper, 0.16% zinc and 0.61g/t gold.

Significant assay results from drill holes RL07-19 to RL08-23 have been received from the analytical laboratory and are tabulated below along with drill hole information. The results from the remaining holes (RL08-24 to 27) will be reported once Rockcliff receives them from the laboratory. 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)
RL07-19 91.74 94.79 3.05 1.14 0.54 0.32 36N/60+35E/270/-45
includes 91.74 92.66 0.92 3.10 0.91 1.02
RL07-20 152.06 153.85 1.79 1.76 0.17 0.52 36N/60+35E/270/-65
includes 152.06 153.47 1.41 2.00 0.16 0.61
RL07-21 73.40 77.11 3.71 1.50 0.81 0.21 38N/59+65E/270/-64
includes 73.40 75.38 1.98 2.30 1.11 0.34
RL07-22 70.10 72.24 2.14 1.96 0.42 0.56 39+90N/58+65/270/-45
Includes 70.10 70.56 0.46 6.44 0.97 2.26
RL07-23 90.45 95.55 5.11 4.31 2.68 0.61 42N/58+55E/270/-45
includes 90.45 93.57 3.12 6.18 4.04 0.72
including 90.45 92.81 2.36 7.13 3.73 0.82
(m) equals metres, % equals percentage, g/t equals grams per tonne,
(i) Imperial grid used. Co-ordinates are approximate.
RL07-09 undercut Rail mineralization.

The Rail Property VMS mineralization consists 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 VMS style mineralization within and beyond the limits of the historical Rail VMS Deposit across a strike length of over 500m 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 than previously interpreted. Additional drilling will be required to define the actual limits of the Rail VMS Deposit.

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. (TSX:HBM). 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.


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 technical information in this press release and 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 becoming mine finders through the acquisition and advancement 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 1,600 km2 and located within the Flin Flon greenstone belt. The project presently includes five historical VMS deposits and numerous additional areas with potential for VMS and nickel-copper-platinum group metal mineralization. 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.

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