Northern Dynasty Minerals Ltd.: Resource Estimate for Pebble East Confirms a World Class Porphyry Copper-Gold-Molybdenum Deposit.

VANCOUVER, British Columbia -- Ronald W. Thiessen, President and CEO of Northern Dynasty Minerals Ltd. (TSX VENTURE:NDM)(AMEX:NAK) is pleased to report the results of an initial mineral resource estimate for the Pebble East deposit at its Pebble Project in southwestern Alaska. The resource estimate shows that Pebble East represents a significant increase in copper, gold and molybdenum resources for the overall Pebble Project and substantially augments its higher grade resources. The Pebble East deposit is contiguous with the Pebble West deposit and will be assessed for its amenability to low cost, bulk underground mining (see Pebble Project Deposit Plan and Section posted on Northern Dynasty's website at www.northerndynasty.com). The Pebble West porphyry copper-gold-molybdenum deposit is currently being studied at the feasibility level as a major open pit mine.

At a 0.60% copper equivalent cut-off, the estimated inferred mineral resources in the Pebble East deposit are:

- 1.83 billion tonnes grading 1.05% copper equivalent, containing 24.3 billion pounds of copper, 22.1 million ounces of gold, and 1.5 billion pounds of molybdenum.

At a 1.00% copper equivalent cut-off, the higher-grade inferred mineral resources are estimated at:

- 947 million tonnes grading 1.28% copper equivalent, containing 16.0 billion pounds of copper, 14.5 million ounces of gold, and 830 million pounds of molybdenum.

A summary of mineral resources for the Pebble East deposit at various cut-off grades is tabulated below.

TABLE 1 - PEBBLE EAST DEPOSIT
INFERRED MINERAL RESOURCES

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Cut-Off    Size             Grade                 Contained Metal
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CuEQ    Million  Copper Gold Molybdenum CuEQ  Copper Gold Molybdenum
%        Tonnes       %  g/t          %    %    B lb M oz       M lb
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0.30      2,126    0.55 0.34      0.037 0.97    25.9 23.5      1,717
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0.60      1,832    0.60 0.37      0.038 1.05    24.3 22.1      1,547
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0.70      1,611    0.64 0.40      0.039 1.10    22.6 20.5      1,398
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1.00        947    0.77 0.48      0.040 1.28    16.0 14.5        830
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Note 1. By prescribed definition, "Mineral Resources" do not have
        demonstrated economic viability. An Inferred Mineral
        Resource is that part of a mineral resource for which
        quantity and grade can be estimated on the basis of
        geological evidence and limited sampling and reasonably
        assumed, but not verified, geological and grade continuity.

Note 2. Copper equivalent calculations use metal prices of US$1.00/lb
        for copper, US$400/oz for gold, and US$6.00/lb for
        molybdenum. Copper equivalent has not been adjusted for
        metallurgical recoveries. Adjustment factors to account for
        differences in relative metallurgical recoveries for copper,
        gold and molybdenum will depend upon the completion of
        definitive metallurgical testing. CuEQ equals Cu % + (Au g/t
        x 12.86/22.05) + (Mo% x 132.28/22.05).

Note 3. A 0.30% CuEQ cut-off is considered to be comparable to that
        used for porphyry deposit open pit mining operations in the
        Americas. For bulk underground mining higher cut-offs, such
        as 0.60% CuEQ, are typically used. All cut-offs are subject
        to a feasibility study.

Note 4. The resource estimates for Pebble East were prepared by the
        technical staff of Northern Dynasty and audited by
        independent consultants, Roscoe Postle Associates Inc.

The Pebble East deposit is open to expansion in all lateral directions and to depth. There is excellent potential to establish significant additional resources with further drilling. Northern Dynasty is now focused on thoroughly assessing Pebble East through drilling, engineering and environmental programs in order to integrate this exceptional discovery into an overall mine plan that is optimal for the project. The drilling component of the programs consists of 30,500 metres (100,000 feet) at a budgeted cost of US$20 million and will commence as soon as rigs with deep drilling capability can be mobilized to site, expected in March. Comprehensive engineering, environmental, and socioeconomic programs, designed for the completion of a feasibility study and permit applications for a modern, long-life mining operation with large scale annual metal output will continue in parallel with the Pebble East drilling program. At this point, expectations are that the project will integrate production from high volume, low cost, open pit and underground mines.

A comparison with the mineral resources and the metals contained in the Pebble West deposit at the same cut-offs, shown in Tables 2 and 3, clearly demonstrates the substantial value that the Pebble East deposit could add to the Pebble Project.

TABLE 2 - PEBBLE WEST DEPOSIT
MEASURED PLUS INDICATED MINERAL RESOURCES

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Cut-Off    Size             Grade                 Contained Metal
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CuEQ    Million  Copper Gold Molybdenum CuEQ  Copper Gold Molybdenum
%        Tonnes       %  g/t          %    %    B lb M oz       M lb
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0.30      3,026    0.28 0.32      0.015 0.56    18.8 31.3        993
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0.40      2,413    0.31 0.35      0.016 0.61    16.5 27.0        855
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0.50      1,628    0.35 0.39      0.018 0.69    12.7 20.5        629
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0.60        970    0.41 0.45      0.020 0.78     8.7 13.8        420
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0.70        569    0.46 0.50      0.021 0.88     5.8  9.1        265
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TABLE 3 - PEBBLE WEST DEPOSIT
INFERRED MINERAL RESOURCES

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Cut-Off    Size             Grade                 Contained Metal
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CuEQ    Million  Copper Gold Molybdenum CuEQ  Copper Gold Molybdenum
%        Tonnes       %  g/t          %    %    B lb M oz       M lb
--------------------------------------------------------------------
0.30      1,130    0.24 0.30      0.014 0.50     5.9 10.8        361
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0.40        756    0.27 0.34      0.017 0.57     4.5  8.2        278
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0.50        417    0.31 0.42      0.018 0.67     2.9  5.6        168
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0.60        226    0.36 0.49      0.020 0.77     1.8  3.6        101
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0.70        143    0.40 0.56      0.020 0.85     1.3  2.6         62
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Note 1. By prescribed definition, "Mineral Resources" do not have
        demonstrated economic viability. An Inferred Mineral Resource
        is that part of a mineral resource for which quantity and
        grade can be estimated on the basis of geological evidence
        and limited sampling and reasonably assumed, but not
        verified, geological and grade continuity.

Note 2. Copper equivalent calculations use metal prices of US$1.00/lb
        for copper, US$400/oz for gold, and US$6.00/lb for
        molybdenum. Copper equivalent has not been adjusted for
        metallurgical recoveries. Adjustment factors to account for
        differences in relative metallurgical recoveries for copper,
        gold, and molybdenum will depend upon the completion of
        definitive metallurgical testing. CuEQ equals Cu % + (Au g/t
        x 12.86/22.05) + (Mo% x 132.28/22.05).

Note 3. A 0.30% CuEQ cut-off is considered to be comparable to that
        used for porphyry deposit open pit mining operations in the
        Americas. For bulk underground mining higher cut-offs, such
        as 0.60% CuEQ, are typically used. All cut-offs are subject
        to a feasibility study.

Note 4. The resource estimates for Pebble West were prepared by
        independent consultants, Roscoe Postle Associates Inc. as
        described in Northern Dynasty's news release dated March 4,
        2005.

Bob Dickinson, Northern Dynasty's Chairman commented, "The ongoing success of our drilling programs at Pebble demonstrates the extraordinary potential of the Project's mineralizing systems. The combined Pebble West and Pebble East resources rank among the largest copper, gold and molybdenum accumulations in the world. This initial resource estimate of the Pebble East indicates a substantial increase in the copper, gold and molybdenum available, with significant promise to further expand that resource. Pebble is an exceptionally important discovery because it is located on American soil - a stable jurisdiction in which the development rules are well-known - at a time when the demand for copper, gold and molybdenum is increasing worldwide while available new supplies are limited."

The Pebble East resource estimate is based upon drill core assay results from 20,890 metres (68,500 feet) of drilling in 22 holes completed by Northern Dynasty. The estimate was prepared by the technical staff of Northern Dynasty and audited by industry leading geological and mining consultants at Roscoe Postle Associates Inc., under the direction of David W. Rennie, P. Eng., an independent Qualified Person as defined by National Instrument 43-101. A technical report detailing the resource estimate will be filed on www.sedar.com within 45 days.

Mark Rebagliati, P.Eng., is the Qualified Person supervising the quality control and assurance program for the Pebble Project. Logging and sampling is completed in Northern Dynasty's secure facility at Iliamna, Alaska. The NQ-size core is split and samples are transported to the ALS Chemex laboratory in Fairbanks for drying, weighing and crushing. Samples are shipped by airfreight to the main ALS Chemex laboratory, North Vancouver, Canada (an ISO 9002 certified  laboratory) for final preparation and analysis. Gold is determined by 30 g Fire Assay (FA) fusion with an Atomic Absorption Spectroscopy  (AAS) finish. Copper and molybdenum assays are by four acid digestion  with an Inductively Coupled Plasma-Emission Spectroscopy (ICP-ES) finish. All samples are also analyzed for 23 additional elements by four acid digestion ICP-ES. Northern Dynasty includes standards, duplicates and blanks in addition to the laboratory's internal quality control work. Duplicate samples are analyzed by Acme  Analytical Laboratories of Vancouver, Canada.

Ronald W. Thiessen, President and CEO

Forward-Looking and other Cautionary Information

This release includes certain statements that may be deemed "forward-looking statements". All statements in this release, other than statements of historical facts, that address estimated resource quantities, grades and contained metals, possible future mining, exploration and development activities, are forward-looking statements. Although the Company believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements should not be in any way construed as guarantees of future performance and actual results or developments may differ materially from those in the forward-looking statements. Factors that could cause actual results to differ materially from those in forward-looking statements include market prices for metals, the conclusions of detailed feasibility and technical analyses, lower than expected grades and quantities of resources, mining rates and recovery rates and the lack of availability of necessary capital, which may not be available to the Company on terms acceptable to it or at all. The Company is subject to the specific risks inherent in the mining business as well as general economic and business conditions. For more information on the Company, Investors should review the Company's annual Form 20-F filing with the United States  Securities Commission and its home jurisdiction filings that are available at www.sedar.com.

Information Concerning Estimates of Measured, Indicated and Inferred Resources

This news release also uses the terms "measured resources", "indicated resources" and "inferred resources". Northern Dynasty Minerals Ltd. advises investors that although these terms are recognized and required by Canadian regulations (under National Instrument 43-101 Standards of Disclosure for Mineral Projects), the U.S. Securities and Exchange Commission does not recognize them. Investors are cautioned not to assume that any part or all of the mineral deposits in these categories will ever be converted into reserves. In addition, "inferred resources" have a great amount of uncertainty as to their existence, and economic and legal feasibility. It cannot be assumed that all or any part of an Inferred Mineral Resource will ever be upgraded to a higher category. Under Canadian rules, estimates of Inferred Mineral Resources may not form the basis of feasibility or pre-feasibility studies, or economic studies except for Preliminary Assessment as defined under 43-101. Investors are cautioned not to assume that part or all of an inferred resource exists, or is economically or legally mineable.

Neither the TSX Venture Exchange nor any other regulatory authorit y accepts responsibility for the adequacy or accuracy of this release.

Northern Dynasty Minerals Ltd. (TSX VENTURE:NDM) (AMEX:NAK)