Zinc

[Lone Clone]

Rockcliff Resources Inc.: Drilling Intersects More High Grade Zinc-Silver Mineralization
Thursday April 19, 8:51 am ET

http://biz.yahoo.com/ccn/070419/200704190385151001.html?.v=1

SUDBURY, ONTARIO--(CCNMatthews - April 19, 2007) - Rockcliff Resources Inc. (TSX VENTURE:RCR - News) is pleased to announce that surface drill holes continue to intersect high metal values at the Zinc Zone. Rockcliff's Zinc Zone is associated within its 100% owned Shihan VMS Property located in central Ontario.

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

- 4.35 metres grading 8.09% zinc, 2.29 % lead and 17.50opt silver including 1.75 metres grading 19.31% zinc, 5.62% lead and 25.50 opt silver

- 2.50 metres grading 5.24% zinc, 0.66% lead and 34.76opt silver including 1.70 metres grading 5.47% zinc, 0.86% lead and 49.17 opt silver.

- 2.50 metres grading 7.38% zinc, 0.72% lead and 4.53 opt silver including 0.50 metres grading 29.72% zinc, 2.75% lead and 7.55 opt silver

- 2.95 metres grading 4.95% zinc, 0.61% lead and 2.90 opt silver including 0.80 metres grading 17.08% zinc, 2.13% lead and 7.80 opt silver

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

 
 --------------------------------------------------------------------------- 
 Borehole  From (m)  To (m)  Length   Zn %  Ag g/t (opt)  Pb %  Au ppb  Zone 
                                (m)                              (opt) 
 --------------------------------------------------------------------------- 
  RS07-11     33.65   36.55    2.90   4.08    108 (3.15)  0.41      69  Zinc 
 --------------------------------------------------------------------------- 
  includes    35.00   36.25    1.25   8.06    217 (6.34)  0.90     107  Zinc 
 --------------------------------------------------------------------------- 
  RS07-12     44.75   49.10    4.35   8.09   600 (17.50)  2.29     890  Zinc 
 --------------------------------------------------------------------------- 
  includes    47.35   49.10    1.75  19.31   874 (25.50)  5.62     569  Zinc 
 --------------------------------------------------------------------------- 
  RS07-13     114.5  120.90    6.40   3.96     80 (2.34)  0.65      46  Zinc 
 --------------------------------------------------------------------------- 
  includes    115.7  117.10    1.40   9.47    208 (6.07)  0.90     122  Zinc 
 --------------------------------------------------------------------------- 
  includes    119.8  120.90    1.10   8.57     77 (2.25)  2.18      39  Zinc 
 --------------------------------------------------------------------------- 
  RS07-14      41.9   44.40     2.5   7.38    155 (4.53)  0.72     430  Zinc 
 --------------------------------------------------------------------------- 
  includes     43.9   44.40    0.50  29.72    259 (7.55)  2.75     277  Zinc 
 --------------------------------------------------------------------------- 
  RS07-15        58   60.95    2.95   4.95      99(2.90)  0.61     149  Zinc 
 --------------------------------------------------------------------------- 
  includes    60.15   60.95    0.80  17.08    268 (7.80)  2.13     231  Zinc 
 --------------------------------------------------------------------------- 
  RS07-16     44.85   46.00    1.15  11.24    104 (3.04)  1.00     353  Zinc 
 --------------------------------------------------------------------------- 
  RS07-17      53.6    56.1     2.5   5.24  1192 (34.76)  0.66    3522  Zinc 
                                                                (0.10) 
 --------------------------------------------------------------------------- 
  includes     54.4    56.1     1.7   5.47  1686 (49.17)  0.86    4851  Zinc 
 --------------------------------------------------------------------------- 
                                                                (0.14)

---------------------------------------------------------------------------
- (m) equals metres, % equals percent, g/t equals grams per tonne,
opt equals ounces per ton, ppb equals parts per billion
- Zn equals zinc, Ag equals silver, Pb equals lead, Au equals gold


Phase 1 drilling at the Shihan VMS Property has now been completed in 30 drill holes totaling 2,984.5 metres. The Zinc Zone is interpreted as a single lens of semi-massive to massive sulphides located along a favorable felsic horizon. It has a maximum surface strike length of 150 metres and has been drill tested to a maximum vertical depth of approximately 150 metres. The zone remains open at depth. The favourable horizon hosting the Zinc Zone has a strike length in excess of 2 km and remains an important exploration target for additional VMS Zones.

Holes 8, 9, 18 and 19 intersected minor disseminated sulphide mineralization along the favourable felsic horizon assisting in defining the strike limits of the zone. Hole 10 intersected a diabase dyke at the anticipated intersection of the Zinc Zone.

Additional assay results from the remaining holes (RS07-20 to 30) will be released 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.

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.

Ken Lapierre P.Geo., President & CEO of Rockcliff, a qualified person under the definition of National Instrument 43-101, has reviewed and approved the contents of this news release.

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's long term growth strategy was realized in March of 2007 when the company acquired the Snow Lake VMS Project. This Project consists of 19 VMS properties and 5 Mineral Exploration Licences totaling 110,000 hectares of favorable VMS stratigraphy located with the Flin Flon greenstone belt, Manitoba. The belt is one of the most prolific and the largest Proterozoic VMS District in the world. The Snow Lake VMS Project is within trucking distance to mills, smelters and a zinc refinery.

For more information on Rockcliff, the Shihan VMS Project and the Snow Lake VMS Project, please visit our website at www.rockcliffresources.com.

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:

Ken Lapierre, P.Geo.
Rockcliff Resources Inc.
President and CEO
[phone]
Email: [e-mail]
Website: www.rockcliffresources.com

Source: Rockcliff Resources Inc.