VANCOUVER, BRITISH COLUMBIA -- (MARKET WIRE) -- 12/05/07 -- West Timmins Mining Inc. (TSX: WTM) announced today that operator Lake Shore Gold Corp. (TSX: LSG) has intersected additional high-grade gold mineralization grading 24.61 grams per tonne gold over 7.0 metres (0.72 ounces per ton over 22.96 feet) in hole TC07-36 on the Thunder Creek Property near Timmins, Ontario. The Thunder Creek Property is part of WTM's 114 square kilometre West Timmins Gold
Project and is located adjacent to Lake Shore's Timmins West Property, where an underground exploration program is currently underway.

The new intersection is located 25 metres west of discovery hole TC07-30 and 300 metres below surface. As previously reported (NR07-29, September 6, 2007), hole TC07-30 intersected four zones of high-grade gold mineralization that returned 10.91 grams gold per tonne over 3.65 metres, 5.43 grams gold per tonne over 1.20 metres, 27.60 grams gold per tonne over 0.50 metres and 12.01 grams gold per tonne over 3.10 metres. The gold mineralization in TC07-36 correlates with the previously announced Lower Rusk Zone intersection in hole
TC07-30. Holes TC07-31 to TC07-33 were drilled up to 60 metres to the
east, below and above the discovery hole.


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From To Length(i) Gold Host
Hole (metres) (metres) (metres) (g/t) Rocks
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TC07-36 344.00 351.00 7.00 24.61 UM/S
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including 344.00 350.05 6.05 28.05 UM/S
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TC07-31 209.20 209.80 0.60 1.18 Volcanics
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424.70 425.20 0.50 13.40 UM/S
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427.40 427.90 0.50 1.05 UM/S
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429.50 430.00 0.50 3.76 UM/S
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434.00 437.10 3.10 5.03 UM/S
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including 434.00 435.60 1.60 7.93 UM/S
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439.10 444.10 5.00 1.08 UM/S
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TC07-32 434.60 435.00 0.40 1.91 UM/S
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439.40 440.00 0.60 3.57 UM/S
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444.70 445.10 0.40 1.93 UM/S
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TC07-33 412.35 413.70 1.35 3.43 UM/S
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417.40 418.15 0.75 2.05 UM/S
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425.00 429.40 4.40 2.12 UM/S
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including 428.50 429.40 0.90 4.47 UM/S
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442.55 443.35 0.80 1.01 UM/S
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TC07-34 In Progress
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TC07-35 In Progress
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(i) Represents measured core intervals as true widths are not known
at this time; UM/S equals Ultramafic/Syenite host rocks


"The latest intersection from Thunder Creek confirms the presence of
a very promising high-grade gold system on the Thunder Creek
Property," said Darin Wagner, President and CEO of West Timmins
Mining Inc. "The system bears a number of similarities to the nearby
Timmins West deposit, including an apparent increase in grade and
thickness at a depth of approximately 300 metres. We look forward to
continuing to move this new discovery forward with Lake Shore Gold."

The new intersections are located approximately 865 metres southwest
of the Timmins West shaft currently being developed by Lake Shore.
The discovery on the Thunder Creek Property may be able to be
accessed from the Timmins West shaft, if proven to be of sufficient
size.

Lake Shore President and CEO Brian Booth said: "These new gold
intersections at Thunder Creek extend the discovery zone at least 25
metres to the west at significantly higher grade. The intersections
are very positive and the potential of this discovery continues to be
highly prospective. The discovery remains open to the west and down
plunge and is associated with increasing alteration and structural
intensity. Two drills will continue to explore the property and
further establish the geometry of the new gold discovery."

Lake Shore has notified West Timmins that it has completed the
requirements to vest a 60% option interest in the Thunder Creek
Property. Pending final confirmation of exploration expenditures the
Thunder Creek Property will move forward as a 60/40 pro-rata funded
joint venture between Lake Shore and West Timmins.

Quality Control
The resulted reported herein were provided to West Timmins by Lake
Shore Gold, the operator of the Thunder Creek Property. Lake Shore
Gold has implemented a quality-control program to ensure best
practice in the sampling and analysis of the drill core. Assays have
been completed using a standard fire assay with a 30-gram aliquot.
For samples that return a value greater than three grams per tonne
gold, another pulp is taken and fire assayed with a gravimetric
finish. Zones with visible gold were tested by pulp metallic
analysis. NQ size drill core is saw cut and half the drill core is
sampled in standard intervals. The remaining half of the core is
stored in a secure location. The drill core is transported in
security-sealed bags for preparation at ALS Chemex Prep Lab located
in Timmins, Ontario, and the pulps shipped to ALS Chemex Assay
Laboratory in Vancouver, B.C. ALS Chemex is an ISO 9001-2000
registered laboratory preparing for ISO 17025 certification.

Lake Shore's Qualified Person ("QP") for the Thunder Creek Property
is Jacques Samson, P.Geo. As QP he has prepared or supervised the
preparation of the scientific or technical information for the
property and has reviewed and approved the technical disclosure
contained herein. Mr. Darin Wagner, P. Geo. and President of the
Company, has acted as West Timmins qualified person for this release.
The qualified person has examined the drill core from the project but
has not independently verified the assay results contained in this
release.

About West Timmins Mining Inc. (www.westtimminsmining.com)