Mineral Resources Increase Significantly at Pacifica's Selwyn Project

    VANCOUVER, April 2 /CNW/ - Pacifica Resources Ltd. (PAX.TSX-V) is pleased
to announce an update to the March 2006 NI 43-101 compliant mineral resource
estimate for the Selwyn Project zinc-lead deposits in the Yukon. The updated
mineral resource estimate includes the 2006 results from 191 drill holes
totalling 41,658.5 metres. The 2006 exploration program demonstrated the
expansion potential of the world-class Selwyn Project with five new discovery
zones of SEDEX type zinc-lead mineralization. The new and updated mineral
resources are reported for nine deposits that occur over a strike length of
26.2 kilometres representing the near surface expression of one continuous,
large mineralized deposit. The mineralization is stratabound within the Active
Member and is characteristic of sedimentary exhalative deposits (SEDEX).


    -   Indicated mineral resources have increased more than 158% to
        86,600,000 tonnes, grading 4.93% zinc and 1.73% lead containing
        9,406 million pounds zinc and 3,293 million pounds lead.

    -   Inferred mineral resources have increased more than 91% to
        215,460,000 tonnes, grading 4.71% zinc and 1.48% lead containing
        22,377 million pounds zinc and 7,025 million pounds lead.

    -   In addition, the Mineral Potential is estimated from the 3D block
        model to be at least 225 to 235 million tonnes grading from 4.0% to
        5.0% zinc and 1.0% to 2.0% lead.

    -   XY high-grade underground target Indicated mineral resource of
        7,394,860 tonnes grading 9.88% zinc and 4.32% lead containing
        1,610 million pounds zinc and 703 million pounds lead. Note this is
        contained within the Indicated mineral resource figure above.

    -   XY high-grade underground target Inferred mineral resource of
        1,856,500 tonnes grading 10.41% zinc and 3.71% lead containing
        425 million pounds zinc and 151 million pounds lead. Note this is
        contained within the Inferred mineral resource figure above.

    The updated mineral resource estimate was prepared by John J. O'Donnell,
the onsite Qualified Person for Pacifica in conjunction with, and under audit
by, Independent Qualified Person under NI 43-101, Cliff Pearson of Pearson
Geological Ltd. of Victoria, BC. Mr. Pearson will oversee the preparation of
the related NI 43-101 Technical Report. Mr. Pearson has also reviewed and
approved the contents of this press release. In accordance with National
Instrument 43-101, the Technical Report will be filed on SEDAR within 45 days.

    Mineral Resources

    The Indicated mineral resources for the Selwyn Project now total
86.6 million tonnes grading 4.93% zinc and 1.73% lead for a metal content of
9.40 billion pounds of zinc and 3.29 billion pounds of lead. The Inferred
mineral resources total 215.5 million tonnes grading 4.71% zinc and 1.48% lead
for a metal content of 22.37 billion pounds of zinc and 7.03 billion pounds of
lead. The Inferred mineral resources are generally located outside of the main
areas of drilling in the deeper part of the Active Member; which hosts the
sulphide mineralization. Areas of Inferred mineral resources require more
closely spaced drill holes to improve the confidence level for their inclusion
in Indicated mineral resources. These closer spaced drill holes will be done
from surface drill stations in 2007.
    The March 2006 NI 43-101 compliant mineral resource estimation for the
Selwyn Project defined 33,501,000 tonnes of Indicated mineral resource grading
5.53% zinc and 2.10% lead and 112,907,940 tonnes of Inferred mineral resource
grading 5.40% zinc and 2.14% lead. The March 2006 NI 43-101 report on the
Selwyn mineral resources can also be viewed in detail at www.sedar.com and was
co-authored by John Nilsson, P.Eng. and John J. O'Donnell, P.Geo. Table 1
presents the mineral resources for the Selwyn Project zinc-lead deposits.

           Table 1: Selwyn Project 2007 Mineral Resource Estimate

                           Resource    Million    Zn     Pb      Zn      Pb
    Deposit                  Class      Tonnes    (%)    (%)   (Mlbs)  (Mlbs)
    XY Deposit             Indicated    36.27    5.77   2.35   4,610   1,874
                            Inferred    46.64    5.38   2.08   5,525   2,138
    XY Nose Zone           Indicated
                            Inferred     7.32    4.08   2.20     658     354
    Brodel                 Indicated
                            Inferred    12.11    4.31   1.16   1,150     309
    HC Zone                Indicated     8.60    4.01   1.04     759     197
                            Inferred    33.02    3.85   1.07   2,800     780
    HC West Zone           Indicated     4.47    4.36   1.16     429     114
                            Inferred    13.93    4.98   1.32   1,528     404
    Don East Zone          Indicated
                            Inferred    24.71    5.54   1.43   3,017     780
    Don Zone               Indicated     2.36    5.15   1.15     268      60
                            Inferred    14.68    4.70   1.17   1,520     377
    Anniv East Deposit     Indicated    16.92    4.15   1.20   1,548     447
                            Inferred    16.05    4.04   1.08   1,429     381
    Anniv Central Deposit  Indicated    17.98    4.52   1.51   1,791     599
                            Inferred    40.12    4.63   1.48   4,093   1,308
    West Extension          Inferred     6.88    4.30   1.25     652     189
    Total                  Indicated    86.60    4.93   1.73   9,406   3,293
    Total                   Inferred   215.46    4.71   1.48  22,377   7,025

    Notes for Table 1:

    1.  Mineral Resources reported above have been calculated as of March 30,
        2007 in accordance with the standards of the Canadian Institute of
        Mining, Metallurgy and Petroleum and National Instrument 43-101. U.S.
        investors should be aware that the SEC in the United States does not
        recognize these terms. It cannot be assumed that all or any part of
        an Indicated or Inferred mineral resource will ever be upgraded to a
        higher category of Mineral Resource.
    2.  A 2% zinc grade cut-off was applied to the new mineral resource
    3.  The Mineral Resource Estimate uses all 464 drill holes, totalling
        86,334.6 metres, successfully completed on the Selwyn Project over
        three separate periods: 1973 to 1981, 2000, and 2005 to 2006.

    High Grade XY Zone Mineral Resource

    During the course of tabulating the overall mineral resources of the
XY deposit (see Table 1), a subset of the XY Indicated resources was extracted
to quantify the resources available to provide higher grade areas suitable for
underground mining. This yielded a NI 43-101 compliant Indicated mineral
resource of 7,394,860 tonnes grading 9.88% zinc and 4.32% lead containing
1,608 million pounds zinc and 703 million pounds lead. This high-grade
XY resource is included within the overall XY zone Indicated resource shown in
Table 1. There is also an Inferred mineral resource of 1,856,500 tonnes
grading 10.41% zinc and 3.71% lead containing 425 million pounds zinc and
152 million pounds lead. Note this is contained within the Inferred mineral
resource shown in Table 1.
    Placer Dome had previously developed an Inferred resource of
8,100,000 tonnes (8,900,000 short tons) grading 10.6% zinc and 5.5% lead that
was reviewed and disclosed in a June 2005 NI-43-101 compliant report prepared
by Mr. Al Burgoyne and filed on www.sedar.com(note that this resource estimate
predates NI-43-101 and should not be relied upon). It should be noted that
this current XY high grade zone Indicated mineral resource includes, not only
portions of the historical Placer Dome mineral resource, but also includes the
newly drilled areas identified in 2006. The mineral potential of the
high-grade underground target remains open for expansion in 2007, particularly
down dip towards the core of the synclinal structure.

    Potential Mineral Resources

    In addition to the Indicated and Inferred resources estimated in this
report, a mineral potential was estimated which contains 225 to 235 million
tonnes with an estimated grade of between 4.0-5.0% zinc and 1.0-2.0% lead. The
mineral potential represents the down dip and strike extension of the
Indicated and Inferred resources taken from a polygonal long-section model.
The potential mineral resource mentioned above represents a small portion of
the interpreted extent of the Active Member that hosts all known zinc-lead
mineralization in the Selwyn district and does not include the OP, OP West,
and Pelly North zones. The Active Member has now been defined over
37.5 kilometres of strike length with the drilling results from 2006.
Importantly, all drill holes which have intersected the Active Member have
contained significant thicknesses and grades of both zinc and lead
mineralization. The potential quantity and grade of this mineral potential is
conceptual in nature, as there has been insufficient drilling to define a
mineral resource and it is uncertain if further exploration will result in any
of this potential being realized as a mineral resource.
    The geologic continuity of the Selwyn Project mineralization is well
established through diamond drilling and underground development. The mineral
resources were estimated using ordinary kriging of a 3D block model. All
databases were updated and verified with mineralized intercepts composited on
1.5 metre intervals. Classical statistics evaluated the databases; which
subsequently underwent variography and the block model was populated with a
restricted search for high-grade outliers. Bulk density was assigned for each
block in the 3D block model thereby allowing for the mineral resources to be
classified and reported following a thorough 3D block model validation.

    Exploration and Development Focus

    Pacifica's main focus is the exploration of its properties that compose
the Selwyn Project in the Yukon, which hosts large tonnages of zinc-lead
mineralization. The known deposits have the potential for the large scale
production of zinc and lead, at a time when World zinc mine supply is in
deficit and there are few new mines under development. As follow-up to the
highly successful 2006 exploration program, Pacifica Resources is planning a
$25 million exploration program in 2007 to continue definition drilling of the
XY, Anniv, and Don Valley (HC, HC West, Don East, and Don) deposits.
Particular focus will be given to in-fill drilling of near surface deposits
targeted for early open pit development and the expansion of recently
discovered high grade mineralization in both the XY deposit and in the Don
zone in Don valley that appear to indicate a transition to higher grades in
the core of the synclinal structure hosting the various deposits, signalling
the potential for significant tonnages of higher grade mineralization over the
more than 15 kilometres separating these two zones.

    Mineral Resource Parameters

    Note that all discussion of previous NI-43-101 compliant Indicated and
Inferred mineral resources is referenced in the March 2006 NI 43-101 report
for the Selwyn Project. 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 www.sedar.com.
    The Selwyn Project 2007 exploration program is being overseen by Vice
President Exploration, Mr. Jason Dunning, M.Sc., P.Geo. The onsite activities
for the Selwyn Project are directed by Exploration Manager, John J. O'Donnell,
P.Geo. Both Mr. Dunning and Mr. O'Donnell are Qualified Persons within the
meaning of National Instrument 43-101. All assay data has been through
internal validation of quality assurance and quality control. Pacifica has
established a sampling and assay control program with blind insertion of assay
blanks, standards and duplicates for the Selwyn Project; however, it should be
noted that there is also a quality control and quality assurance program in
place at both ACME Analytical Laboratories Ltd. ("ACME") and ALS Chemex that
includes blanks, duplicates and standards. At ACME, silver and base metal
analyses are conducted by a 17-element, four-acid digestion, ore-grade ICP-AES
technique. At ALS Chemex, silver and base metal analyses are conducted by a
25-element, four-acid digestion, ICP-AES technique with overlimit protocols
for zinc, lead, copper, antimony, arsenic, and barium conducted by an
ore-grade aqua-regia digestion with an instrument finish (ALS-Chemex).

    Forward Looking Statements

    Except for the statements of historical fact contained herein, the
information presented in this News Release constitutes "forward-looking
statements" as such term is used in the U.S. Private Securities Litigation
Reform Act of 1995 and similar Canadian laws. These statements relate to
analyses and other information that are based on forecasts of future results,
estimates of amounts not yet determinable and assumptions of management.
    Statements concerning Mineral Resource estimates should be viewed as
forward-looking statements to the extent that they involve estimates of the
mineralization that will be encountered if the property is developed. Any
statements that express or involve discussions with respect to predictions,
expectations, beliefs, plans, projections, objectives, assumptions or future
events or performance (often, but not always, using words or phrases such as
"expects" or "does not expect", "is expected", "anticipates" or "does not
anticipate", "plans, "estimates" or "intends", or stating that certain
actions, events or results "may", "could", "would", "might" or "will" be
taken, occur or be achieved) are not statements of historical fact and should
be viewed as "forward-looking statements". Such forward looking statements,
including but not limited to, those with respect to the price of metals, the
timing and amount of estimated future mineralization and economic viability of
properties, capital expenditures, costs and timing of exploration projects,
permitting time lines, title to properties, the timing and possible outcome of
pending exploration projects and other factors and events described in this
News Release, involve known and unknown risks, uncertainties and other factors
which may cause the actual results, performance or achievements of the Company
to be materially different from any future results, performance or
achievements expressed or implied by such forward-looking statements. Such
risks and other factors include, among others, the actual results of
exploration activities; the estimation or realization of Mineral Resources;
variations in the underlying assumptions associated with conclusions of
economic evaluations including, the timing and amount of estimated future
production, costs of production, capital expenditures, the failure of plant,
equipment or processes to operate as anticipated and possible variations in
ore grade or recovery rates; costs and timing of the development of new
deposits; availability of capital to fund programs and the resulting dilution
caused by the raising of capital through the sale of shares; accidents, labour
disputes and other risks of the mining industry including without limitation
those associated with the environment, delays in obtaining governmental
approvals, permits or financing or in the completion of development or
construction activities, title disputes or claims limitations on insurance
coverage. Although the Company has attempted to identify important factors
that could cause actual actions, events or results to differ materially from
those described in forward-looking statements, there may be other factors that
cause actions, events or results not to be as anticipated, estimated or
intended. There can be no assurance that such statements will prove to be
accurate as actual results and future events could differ materially from
those anticipated in such statements. Accordingly, readers should not place
undue reliance on forward-looking statements contained in this News Release
and in any document referred to in this News Release.
    Forward looking statements are made based on management's beliefs,
estimates and opinions on the date the statements are made and the Company
undertakes no obligation to update forward-looking statements if these
beliefs, estimates and opinions or other circumstances should change, except
as required by applicable law.


For further information:

For further information: Dr. Harlan Meade, President and CEO; Jasmin
TamDoo, Manager of Investor Communications, Telephone: (604) 682-5474,
Toll-free: 1-877-682-5474, International Toll-free: 1-800-8682-5474,
Facsimile: (604) 682-5404, info@pacifica-resources.com,

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