Dumont prepares Rattler Gold Project for drilling, and resumes work on the Kiewit Gold Zone, Clifton-GoldHill Mining District, Utah

    (DNI : TSX-Ven, DG7 : Frankfurt)

    TORONTO, Dec. 5 /CNW/ - DUMONT Nickel Inc. (DNI:TSX-Ven, DG7:FSE) is
pleased to announce progress updates from its Gold projects in the
Clifton-GoldHill Mining District, Utah.

    Rattler Project Area

    Work is advancing on-schedule at the Rattler Project Area in preparation
for an upcoming drilling program, to follow-up encouraging results from
verification drilling completed earlier in the year. The Area hosts a
3kmx1km corridor of gold anomalies with upward to 0.48ppm gold in soil
samples. The eastern half of the anomalous corridor overlies calcareous
siltstone with potential for Carlin style sediment hosted disseminated gold.
The calcareous silty units occupy two elongate domains, measuring 1.5kmx0.5km
each, trending southeasterly across the Project Area. This is the first such
geological setting discovered in the Clifton-GoldHill District.
    Five vertical drill holes completed during May, 2007, tested beneath one
of the surface gold anomalies overlying calcareous siltstone (press October 4,
2007). Two of the western holes confirmed vertical continuity of gold in the
siltstone. The drilling program confirmed that the surface gold anomaly is
indeed reflective of subsurface gold in the siltstone, indicating also that
the westernmost hole may have cut the periphery of a larger mineralized
    The combined surface and drill results from the area suggest that the
gold bearing zone extends to the southwest beneath other surface gold
anomalies discovered by Dumont, coinciding also with interpreted progressive
thickening of the calcareous siltstone unit.
    Reclamation of the May drill sites was completed during October, and
permitting is in progress to advance the project toward drilling. Expectations
are that permits will be in hand by late January to enable construction of new
access roads and drill pads for the next stage of drilling.

    Kiewit Project Area

    DUMONT plans to resume work on the Kiewit Gold Project after nearly a
year-long recess during which a number of contractual matters related to
acquisition of the Kiewit Area claims were favourably resolved.
    Preparations are underway to assemble the necessary sample material from
drill hole sample archives toward resume extraction testwork in the Spring of
2008. Intentions are to proceed with the second phase of extraction testwork
as part of the in-house Scoping Study initiated in 2006 to evaluate economic
viability of a portion of the Kiewit Gold Zone. This portion, comprising a
250mx250m area overlying the Historic portion of the Zone, is the most
accessible and has been grid-drilled by DUMONT in sufficient detail to support
a resource estimate. DUMONT's 2005-2006 drilling of this area (press April 27,
2005) reported continuously mineralized drill intercepts ranging upward to 55m
(180ft) with gold grades ranging 0.5g/t to 3g/t. Bottle roll cyanidation
leaching tests of 26 samples completed in 2005 reported typical recoveries
exceeding 90%, and averaging 99% overall (press September 12, 2005).
    The first phase of extraction tests completed in 2006 consisted in most
part of a series of conventional column cyanidation tests, evaluating a range
of particle sizes ranging from half to quarter inch, to determine grinding
parameters for optimum gold recovery. The tests confirmed that gold is easily
and rapidly leached by simple cyanidation, although the particle sizes tested
proved too coarse to maximize overall gold recovered. Test results suggest
that finer grinding of samples is required to achieve the higher recoveries
necessary to meet economic thresholds identified by preliminary conclusions
from the ongoing Scoping Study.
    The Scoping Study in progress is intended to establish threshold economic
criteria to enable a determination whether delineation of additional similarly
mineralized material elsewhere over the 2km length of the Kiewit Gold Zone is
warranted. Should the Study prove favourable, intentions would be to resume
additional definition drilling of up to 400 holes to identify additional
mineralized material which meet economic threshold criteria established by the
Study. DUMONT has been exploring the Kiewit Area since 2005 and regards it as
a viable target which could yield bulk mineable gold resources.

    The TSX Venture Exchange has not reviewed and does not accept
    responsibility for the adequacy or accuracy of this release. The
    Qualified Person in connection with this press release is Shahé F. Sabag
    P.Geo, President and CEO of DUMONT.

    DUMONT is a mineral exploration company with operations in Ontario, Utah,
Nevada and Arizona. DUMONT is Operator of the Utah Joint Venture which
controls approximately 15 square miles of mineral properties across the
historic Clifton-Gold Hill gold-silver-copper Mining District. DUMONT
continues to expand its portfolio of uranium exploration projects across
established historic mining districts, and is currently exploring two
Properties in Utah and Arizona. DUMONT holds one of the most prospective land
positions in the Attawapiskat diamond area in the James Bay Lowlands, Ontario,
with a carried interest in the Dumont Joint Venture exploring the area through
Metalex Ventures Limited and others under the direction of Mr. Charles Fipke.
All of DUMONT's properties are being actively explored either directly by
Dumont or via joint venture.

    DNI - TSX Venture
    DG7 - Frankfurt
    Issued: 104,798,010

    %SEDAR: 00010711E

For further information:

For further information: Dumont Nickel Inc., Shahe Sabag, President &
CEO, or Denis Clement, Chairman, (416) 595-1195, email ir@dumontnickel.com,
also visit www.dumontnickel.com

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