Sherwood Reports High Rainfall Temporarily Restricts Access to Its Minto Mine, Production Not Affected

VANCOUVER, BRITISH COLUMBIA, Aug 27 (MARKET WIRE) --
Sherwood Copper Corporation (TSX VENTURE: SWC)(TSX VENTURE: SWC.DB) today
announced that exceptionally high rainfall over the past several days, on
top of an already wet summer, resulted in the temporary closure of the
Klondike Highway to Whitehorse, flooding of its access road to its Minto
Mine and excessive water inflows into its water storage pond from the
surrounding hills. Despite diverting as much run-off as possible into the
Phase 1 open pit (below where mining is currently occurring), the water
storage pond was likely to overflow, so permission was requested from and
granted by the Yukon Water Board to discharge excess stored water in a
controlled manner. The Minto Mine stores water behind a dam to ensure
there is sufficient water available for processing operations throughout
the normally relatively dry summers and frozen winters in the Yukon. The
Klondike Highway has subsequently opened to single lane traffic and
repairs have begun on the mine access road. The Minto Mine is owned and
operated by Minto Explorations Ltd. ("MintoEx"), a wholly owned
subsidiary of Sherwood Copper Corp.

"Following last year, when our principal concern was not having enough
water stored to sustain operations through the dry seasons, this year we
have had to deal with a very wet summer that was topped off by a very
high rainfall event over the past few days," said Stephen Quin, President
& CEO. "Big Creek, which crosses our mine access road, rose over two
metres in 24 hours, and overtopped protective dykes designed to keep
water off the road during flood conditions, temporarily affecting road
access to the mine. The Klondike Highway was also closed between Carmacks
and Whitehorse due to flooding. Water levels are now receding and access
is expected to be restored within two days," he said. "In addition,
excessive run-off from the hills surrounding the Minto Mine quickly
filled the water storage pond where water levels, despite diverting as
much run-off as possible into the lower benches of the open pit (which
are not currently being mined), rose half a metre in eight hours. In
order to manage its water resources, we applied for, and received from
the Yukon Water Board, an amendment to our water licence to discharge
excess stored water. It is important to note that the stored water is
non-toxic to aquatic organisms and, while slightly above discharge levels
set in Minto's water licence, is considerably below Federal standards for
discharge set out in the Metal Mining Effluent Regulations. Further, this
is not a discharge from a tailings pond, since the Minto Mine uses the
dry stack tailings storage method, where tailings are mechanically dried
and stored in a compacted storage facility, and therefore the mine has no
tailings pond."

MintoEx's operating personnel and its environmental consultants kept the
Territorial and Federal regulators and Selkirk First Nation informed at
all times to ensure this rain event was closely monitored, was carefully
managed and that there would be no negative consequences to the natural
environment. At no time was the integrity of the dam used to retain water
in the storage pond in question, since it is designed to standards well
above those related to recent rainfalls.

Mine Access Road

Access to the Minto Mine from Whitehorse is via the Klondike Highway to
Minto Landing, where vehicle traffic crosses the Yukon River by barge in
the summer and ice bridge in the winter, before connecting to a 30km mine
access road leading to the Minto Mine site. The mine access road has one
bridge, over Big Creek, which has been the subject of flooding in prior
years. The rapid rise in water levels in Big Creek, over three meters in
the past several days and two metres in 24 hours, resulted in water
overtopping the protective dykes designed to keep water off the road in
flood events. Water levels in Big Creek have already started to recede
and access to the mine is expected to be restored in the next two days.
While concentrate trucking has been temporarily suspended, Sherwood
already has a ship load of concentrates stored at the port of Skagway,
which is expected to be shipped out in the next few days. Trucking of
concentrates is expected to resume as soon as access is restored.

Mine site Water Levels

Given the dry summers and frozen winters in the Yukon, the Minto Mine has
a water storage pond designed to hold water for use in processing copper
ores in the dry seasons. After several weeks of essentially stable water
levels, the recent heavy rains resulted in very high run-off from the
surrounding hills and a 0.5 metre rise in water levels in the water
storage pond in eight hours, despite diverting all possible run-off water
into the Phase 1 open pit (which was not being used). MintoEx had been
treating the water in the storage pond over the past several weeks to
reduce slightly elevated metal loadings prior to discharge and had
successfully reduced metal levels to well below Federal discharge
standards as set out in the Metal Mining Effluent Regulations ("MMER"),
and was approaching the levels set out under the mine's Territorial water
licence. Given that the water diverted into the open pit is dirtier than
the already treated water in the storage pond, MintoEx applied to the
Yukon Water Board for permission to discharge water from the storage pond
before pumping out the open pit and mixing the dirtier water from the pit
with the treated water in the storage pond. MintoEx's application was
supported by both Federal and Territorial regulators and permission has
been granted. It is important to note that the water in the storage pond
has been extensively tested and has been demonstrated to be non-toxic to
fish and meets MMER discharge standards. Further, the considerable
run-off below the Minto mine site will have a significant dilutive effect
on the water being discharged. The objective of MintoEx's application to
the Yukon Water Board was to allow for a reduction of water levels in the
storage pond to provide sufficient room in the pond for continued
precipitation over the remainder of the summer and fall, and for storage
of the water currently contained in the open pit.

Once water levels in the storage pond are reduced, MintoEx personnel will
pump out the water captured in the open pit and treat it before it is
discharged. MintoEx has a water treatment plant on site to ensure waters
meet the appropriate standards before discharge. Water levels in the open
pit are below the level of the current Phase 3 push-back and should not
affect MintoEx's ability to meet its mine production objectives. Milling
operations have continued throughout the recent days and there should be
no affect on Sherwood's production targets for the year. MintoEx
continues to have air access to the mine for its personnel and crew
changes.

About Sherwood Copper

Sherwood Copper's current focus is profitable production of base and
precious metals from high grade, open pit mines in Canada. Sherwood's
first operating mine, the high grade Minto copper-gold mine in Yukon,
Canada, was built on budget and ahead of schedule. The Minto Mine is one
of the highest-grade open pit copper-gold mines in the world, and is
forecast to be a low cost producer. Aggressive exploration on the Minto
property has yielded significant success, providing Sherwood the
opportunity to 'grow from within' by expanding the resource and reserve
base, potentially leading to further production increases. To further
accelerate its production growth, Sherwood intends to pursue merger &
acquisition opportunities that fit its business model and, in May 2008,
Sherwood acquired 100% ownership in Western Keltic Mines, owner of the
high-grade Kutcho copper-zinc-gold-silver deposit in northwestern British
Columbia. Sherwood expects to lever off its successful development of the
Minto Mine and advance the Kutcho project to a production decision.

Additional Information

Additional information on Sherwood and its Minto Project can be obtained
on Sherwood's website at http://www.sherwoodcopper.com.

On behalf of the board of directors

SHERWOOD COPPER CORPORATION

Stephen P. Quin, President & CEO

This document may contain "forward-looking statements" within the meaning
of Canadian securities legislation and the United States Private
Securities Litigation Reform Act of 1995. These forward-looking
statements are made as of the date of this document and the Company does
not intend, and does not assume any obligation, to update these
forward-looking statements.

Forward-looking statements relate to future events or future performance
and reflect management's expectations or beliefs regarding future events
and include, but are not limited to, statements with respect to the
estimation of mineral reserves and mineral resources, conversion of
inferred mineral resources to the measured and indicated categories, the
realization of mineral reserve estimates in mining, the timing and amount
of estimated future production, costs of production, capital
expenditures, success of mining operations, environmental risks,
unanticipated reclamation expenses, title disputes or claims and
limitations on insurance coverage. In certain cases, forward-looking
statements can be identified by the use of words such as "plans",
"expects" or "does not expect", "is expected", "budget", "scheduled",
"estimates", "forecasts", "intends", "anticipates" or "does not
anticipate", or "believes", or variations of such words and phrases or
statements that certain actions, events or results "may", "could",
"would", "might" or "will be taken", "occur" or "be achieved" or the
negative of these terms or comparable terminology. By their very nature,
forward-looking statements 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 the
forward-looking statements. Such factors include, among others, risks
related to actual results of current exploration activities; changes in
project parameters as plans continue to be refined; future prices of
metals; future currency exchange rates; conversion of mineral resources
to higher confidence levels or to mineral reserves; possible variations
in mineral reserves, grade or recovery rates; accidents, labour disputes
and other risks of the mining industry; changes in the legal or
regulatory regime affecting the Company's operations; delays in obtaining
governmental approvals or financing or in the completion of development
or construction activities; as well as those factors detailed from time
to time in the Company's interim and annual financial statements and
management's discussion and analysis of those statements, including those
for the Current Period, all of which are filed and available for review
on SEDAR at www.sedar.com. 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
forward-looking 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.

The TSX Venture Exchange has not
reviewed and does not accept responsibility for the adequacy or accuracy
of this press release.

Contacts:
Sherwood Copper Corporation
Stephen P. Quin
Investor Contact
(604) 687-7545

Sherwood Copper Corporation
Neil MacRae
Investor Contact
(604) 687-7545
(604) 689-5041 (FAX)
Website www.sherwoodcopper.com

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