New Gold Zone Discovery at Northgate Minerals' Young-Davidson Property



    VANCOUVER, Sept. 10 /CNW/ - Northgate Minerals Corporation (TSX: NGX,
NYSE Amex:   NXG) is pleased to announce the discovery of a new zone of
mineralization at its Young-Davidson property, located near the town of
Matachewan in northern Ontario. The discovery was made by two
geotechnical/condemnation holes drilled in the location of the proposed shaft
that intersected a zone of syenite-hosted gold mineralization, 300 metres (m)
east of the known reserves and resources on the Young-Davidson property.

    
                             Drilling Highlights
    

    A summary of assay results from the two drill holes is shown in Table 1
below. Both holes intersected resource grade gold intervals highlighted by
hole YDFS-10A, which intersected 2.92 grams per tonne (g/t) gold over 10.5
metres (m).

    
    Table 1: Assay Results from Holes YDFS-9C and YDFS-10A

    -------------------------------------------------------------------------
    Hole ID      From (m)    To (m)      Core Length (m)  Gold Cut 20g (g/t)
    -------------------------------------------------------------------------
    YDFS-9C       617.1      618.9            1.8               2.85
    -------------------------------------------------------------------------
                  632.9      636.0            3.1               3.67
    -------------------------------------------------------------------------
                  668.7      672.0            3.3               6.08
    -------------------------------------------------------------------------
    -------------------------------------------------------------------------
    YDFS-10A      831.5      864.0           32.5               1.76
    -------------------------------------------------------------------------
    incl          835.5      846.0           10.5               2.92
    -------------------------------------------------------------------------
    incl          835.5      838.5            3.0               6.59
    -------------------------------------------------------------------------
    incl          858.0      864.0            6.0               2.50
    -------------------------------------------------------------------------
    

    Ken Stowe, President and Chief Executive Officer, stated, "This is an
exciting and significant discovery as we have identified what appears to be a
down faulted eastern extension of the Young-Davidson ore body at a depth of
600 metres. The new zone is completely open and untested to the east and down
dip and although much more work will be required to define the size and grade
of the zone, it has the potential to add to the 2.8 million ounces of reserves
currently on the property. The new zone is immediately adjacent to the
proposed shaft and any reserves that are ultimately identified in the area
will be easily minable using the infrastructure that has been contemplated in
the recently completed Young-Davidson Prefeasibility study."

    Next Steps

    The two diamond drill intercepts are located in the same plane as the
existing Young-Davidson ore body to the east of the known reserves and
resources at depths of approximately 600 and 800 metres, respectively. Follow
up diamond drilling will commence later this month (see Figure 1) to test the
extent of the new zone of mineralization down dip and along strike to the
east.

    To view "Figure 1: Young-Davidson Property (Vertical, North Looking,
Longitudinal Section with Metric Grid)", please click on
    www.northgateminerals.com/Theme/Northgate/files/Releases/YD_LS_Sep09.gif

    Quality Control - Analyses and Sample Location

    Details of quality assurance/quality control procedures for sample
analysis and drill hole survey methodology are reported in detail in the
National Instrument 43-101 (NI 43-101) Technical Report filed on SEDAR
(www.sedar.com) on August 21, 2009.

    Qualified Persons

    The program design, implementation, quality assurance/quality control and
interpretation of the results is under the control of Northgate's geological
staff that includes a number of individuals who are qualified persons as
defined under NI 43-101. Overall supervision of the program is by Carl
Edmunds, PGeo, Northgate's Exploration Manager.

    
    Appendix 1: Drill Hole Collar Locations

    -------------------------------------------------------------------------
    Hole ID  Easting  Northing Elevation Collar Azimuth Collar Dip  Depth (m)
    -------------------------------------------------------------------------
    YDFS-9C  9870.9   23943.5   10319.0      345.0         -69.0     1203.0
    -------------------------------------------------------------------------
    YDFS-10A 9770.8   23849.8   10322.9        0.0         -70.0     1460.0
    -------------------------------------------------------------------------
    

    Note to Investors:

    The terms "Qualified Person", "Mineral Reserve", "Proven Mineral
Reserve", "Probable Mineral Reserve", "Mineral Resource", "Measured Mineral
Resource", "Indicated Mineral Resource", and "Inferred Mineral Resource" used
in this news release are defined in accordance with NI 43-101-Standards of
Disclosure for Mineral Projects of the Canadian Securities Administrators.

    Northgate Minerals Corporation is a gold and copper producer with mining
operations, development projects and exploration properties in Canada and
Australia. The company is forecasting record gold production of over 380,000
ounces in 2009 and is targeting growth through further acquisition
opportunities in stable mining jurisdictions around the world. Northgate is
listed on the TSX under the symbol NGX and on the NYSE Amex under the symbol
NXG.

    Forward-Looking Statements:

    This Northgate press release contains "forward-looking information", as
such term is defined in applicable Canadian securities legislation, concerning
Northgate's future financial or operating performance and other statements
that express management's expectations or estimates of future developments,
circumstances or results.  Generally, forward-looking information can be
identified by the use of forward-looking terminology such as "expects",
"believes", "anticipates", "budget", "scheduled", "estimates", "forecasts",
"intends", "plans" and variations of such words and phrases, or by statements
that certain actions, events or results "may", "will", "could", "would" or
"might" "be taken", "occur" or "be achieved". Forward-looking information is
based on a number of assumptions and estimates that, while considered
reasonable by management based on the business and markets in which Northgate
operates, are inherently subject to significant operational, economic and
competitive uncertainties and contingencies. Northgate cautions that
forward-looking information involves known and unknown risks, uncertainties
and other factors that may cause Northgate's actual results, performance or
achievements to be materially different from those expressed or implied by
such information, including, but not limited to gold and copper price
volatility; fluctuations in foreign exchange rates and interest rates; the
impact of any hedging activities; discrepancies between actual and estimated
production, between actual and estimated reserves and resources or between
actual and estimated metallurgical recoveries; costs of production; capital
expenditure requirements; the costs and timing of construction and development
of new deposits; and the success of exploration and permitting activities.  In
addition, the factors described or referred to in the section entitled "Risk
Factors" in Northgate's Annual Information Form for the year ended December
31, 2008 or under the heading "Risks and Uncertainties" in Northgate's 2008
Annual Report, both of which are available on the SEDAR website at
www.sedar.com, should be reviewed in conjunction with the information found in
this press release.  Although Northgate has attempted to identify important
factors that could cause actual results, performance or achievements to differ
materially from those contained in forward-looking information, there can be
other factors that cause results, performance or achievements not to be as
anticipated, estimated or intended. There can be no assurance that such
information will prove to be accurate or that management's expectations or
estimates of future developments, circumstances or results will materialize.
Accordingly, readers should not place undue reliance on forward-looking
information. The forward-looking information in this press release is made as
of the date of this press release, and Northgate disclaims any intention or
obligation to update or revise such information, except as required by
applicable law.




For further information:

For further information: Ms. Keren R. Yun, Director, Investor Relations,
Tel: (416) 363-1701 ext. 233, Email: ngx@northgateminerals.com, Website:
www.northgateminerals.com

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