SOURCE: Pacifica Resources Ltd.

April 30, 2007 10:06 ET

Pacifica Resources Announces 2007 Selwyn Drilling Commences in Don Valley

VANCOUVER, BC -- (MARKET WIRE) -- April 30, 2007 -- Pacifica Resources Ltd. (TSX-V: PAX) is pleased to announce that the diamond drilling program has commenced on the Selwyn Project. Two diamond drills contracted for exploration drilling on the Selwyn Project are now coring in the Don Valley with a third diamond drill starting up later this week. All remaining diamond drills will commence drilling over the next five to six weeks. The program consists of a minimum 40,000 metres of diamond drilling that will be mostly in-fill drilling but will also include the testing of some high-priority regional stratigraphic targets outside of the defined deposits and zones. The exploration drilling is a major component of a minimum $25 million budget that also includes continuing engineering and environmental studies.

Since 2005, Pacifica successfully completed 49,975.5 metres in 244 drill holes that resulted in discovery of the Don, Don East, HC West, HC, Brodel, OP West and Pelly North zones. These new discoveries have built upon the large geological database from former operators who had completed a total of 36,359 metres of diamond drilling in 218 drill holes, mostly in the Anniv and XY deposits. Detailed drilling has defined a very large Mineral Resource Inventory for the Howard's Pass deposits. Indicated mineral resources have increased more than 158% to 86,600,000 tonnes, grading 4.93% zinc and 1.73% lead containing 9,406 Mlbs zinc and 3,293 Mlbs lead. The Inferred mineral resources increased more than 91% to 215,460,000 tonnes, grading 4.71% zinc and 1.48% lead containing 22,377 Mlbs zinc and 7,025 Mlbs lead (see April 2, 2007 news release).

The initial diamond drilling throughout the Don Valley will follow-up on high-grade results from both the Don East and Don deposits. The definition drilling is designed to increase the confidence in the shallow zinc-lead mineralization amenable for open-pit mining, as well as expand the high-grade mineral potential amenable for underground mining. The evaluation of higher grade mineralization is focused on defining sufficient resources to provide 5,000 to 10,000 tonnes per day from underground mining to the current 20,000 tonnes per day open pit development plan (see January 18, 2007 news release).

The regional stratigraphic drilling will be focused in areas where there is significant near surface mineralization that could lead to development of additional mineral potential for shallow zinc-lead mineralization and areas of higher-grade mineralization such as has been defined in the XY zone. These higher-grade zones could form the basis of defining resources for large scale underground mining. There can be no assurance that such new mineral resources will be defined; however, the exceptional continuity of the mineralization within the favourable Active Member suggests a reasonable probability of doing so.

Coincident with the start of diamond drilling activities, Pacifica field crews have recommenced the construction of an airstrip for the new exploration camp in the Don Valley. To date, there has been significant progress and work is ahead of schedule. In addition, field crews have undertaken the rehabilitation of the extensive exploration trail infrastructure established by prior operators throughout the Don Valley. These trails will serve as access for the current diamond drill program thereby further reducing logistical support costs in 2007.

The Howard's Pass District exploration program is being reviewed by Qualified Person Mr. Jason Dunning, M.Sc., P.Geo., under the meaning of National Instrument 43-101. The onsite Qualified Person for the Selwyn Project is John J. O'Donnell, P.Geo., under the meaning of National Instrument 43-101.

Note that all discussion of NI 43-101 compliant Indicated and Inferred mineral resources are referenced in the March 2006 NI 43-101 report for the Selwyn Project. A NI 43-101 report for the recently updated mineral resource for the Selwyn Project will be filed shortly. In reviewing historical resources, all discussion of Indicated mineral resources that predate introduction of NI 43-101 should be considered as Inferred mineral resources. All historical Inferred mineral resources that predate NI 43-101 should be considered as areas of mineral potential requiring further definition through drilling. Historical mineral resources are referenced in the June 2005 NI 43-101 report for Howard's Pass. Copies of the reports can be viewed at

Pacifica's main focus is the exploration of its Selwyn Project in eastern Yukon and Northwest Territories. The Selwyn Project hosts very large tonnages of zinc-lead mineralization. The known deposits have the potential for large scale production of zinc and lead, at a time when World's zinc mine supply is in deficit and there are few new zinc-lead mines under development.

This press release contains forward-looking statements concerning the mineralization at and the potential of the Selwyn Project. These forward-looking statements are based upon the reasonable beliefs of Pacifica and its management as of the date of this news release; however, forward-looking statements involve risks and uncertainties and are based upon factors that may change and assumptions that may prove, with the passage of time, to be incorrect as a result of exploration and other risk factors associated with mineral exploration and development that are beyond the control of Pacifica. Accordingly, undue reliance should not be placed upon such statements. If factors materially change or assumptions are materially incorrect, the actual results, performance or achievements of Pacifica may be materially different from any future results, performances or achievements expressed or implied by such forward-looking statements. Pacifica does not undertake any obligation to update or revise any forward-looking statements to reflect new information, future events or otherwise, except as required by applicable law.


News Release - 2007-21

Pacifica Resources Ltd.
#701 - 475 Howe Street
Vancouver, British Columbia
Canada  V6C 2B3

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