Coeur Provides Update on Nevada Unpatented Mining Claims Dispute

Coeur d′Alene Mines Corporation (NYSE:CDE) ?(TSX:CDM) today provided an
update on recent activities related to a legal dispute between its
subsidiary, Coeur Rochester, Inc. and Rye Patch Gold US Inc. and its
publicly-traded Canadian parent corporation, Rye Patch Gold Corp. The
legal dispute stems from competing asserted interests in certain
unpatented mining claims covering federal lands near Coeur′s Rochester
mining operations following Coeur Rochester′s inadvertent failure to pay
2011 annual mining claim maintenance fees.

In late December 2011, the Nevada State District Court enjoined Rye
Patch Gold US Inc. from entering certain active mine areas at the
Rochester operations pending the outcome of a trial scheduled for
November 2012. Although Coeur cannot predict the outcome of the trial,
it believes its claims are superior to those staked by Rye Patch.

Earlier this year, Rye Patch filed a motion for a preliminary injunction
to prevent Coeur Rochester from entering the disputed claims. A hearing
on the motion was held in late June before the Special Master, retired
U.S. District Judge David W. Hagen, who was appointed by the Court to
assist in addressing certain pre-trial matters. In a report dated August
6, 2012, the Special Master issued a recommendation that the Court deny
Rye Patch′s motion on the grounds that Rye Patch did not demonstrate a
likelihood of success on the merits of the case and did not show that it
would suffer irreparable harm if a preliminary injunction were not
granted. The Special Master′s report noted that Rye Patch has not
demonstrated that it has made a discovery of valuable minerals on any of
the disputed claims, which is a critical issue in the case.

In addition, on August 9, 2012, the Court entered orders adopting a
number of recommendations made by the Special Master regarding several
pending motions, including denying Rye Patch's motion to dismiss Rye
Patch Gold Corp., the publicly-traded parent company of Rye Patch Gold
US Inc., as a party to the litigation. Rye Patch Gold Corp. must now
answer Coeur Rochester′s complaint and respond to discovery requests.
The Court also entered an order denying Rye Patch′s motion to revoke the
appointment of the Special Master.

Following a $27 million expansion in 2011 to further extend Rochester′s
mine life, the operation is expected to produce 2.6-2.9 million silver
ounces and 30,000-35,000 gold ounces in 2012. Rochester has been in
operation for over 26 years and currently employs approximately 225
people. As of December 31, 2011, Rochester contained proven and probable
reserves of 29.6 million ounces of silver and 247,000 ounces of gold
within 47.3 million tons at average grades of 0.59 ounce of silver per
ton and 0.005 ounce of gold per ton. Based on a detailed review, the
Company is confident that none of these reserves are located on the
disputed claims.

Cautionary Statement

This news release contains forward-looking statements within the meaning
of securities legislation in the United States and Canada, including
statements regarding expected production levels. Such statements are
subject to numerous assumptions and uncertainties, many of which are
outside the control of Coeur, and are based on information that Coeur
believes is reasonable, but involve significant uncertainties affecting
the business of Coeur, including, but not limited to, future gold and
silver prices, costs, ore grades, estimation of gold and silver
reserves, mining and processing conditions, construction delays and
related disruptions in production, disputed mineral claims, risks and
hazards inherent in the mining business (including environmental
hazards, industrial accidents, weather and geologically related
conditions), permitting and regulatory matters (including penalties,
fines, sanctions, and shutdowns), as well as other uncertainties and
risk factors set out in filings made from time to time with the United
States Securities and Exchange Commission, and the Canadian securities
regulators, including, without limitation, in the 'Risk Factors' and
'Management's Discussion and Analysis of Financial Condition and Results
of Operations' sections of Coeur's reports on Form 10-K and Form 10-Q.
Actual results, developments and timetables could vary significantly
from the estimates presented. Readers are cautioned not to put undue
reliance on forward-looking statements. Coeur disclaims any intent or
obligation to update publicly such forward-looking statements, whether
as a result of new information, future events or otherwise.
Additionally, Coeur undertakes no obligation to comment on analyses,
expectations or statements made by third parties in respect of Coeur,
its financial or operating results or its securities.

Donald J. Birak, Coeur's Senior Vice President of Exploration and a
qualified person under Canadian National Instrument 43-101, supervised
the preparation of the scientific and technical information concerning
Coeur's mineral projects in this news release. For a description of the
key assumptions, parameters and methods used to estimate mineral
reserves and resources, as well as data verification procedures and a
general discussion of the extent to which the estimates may be affected
by any known environmental, permitting, legal, title, taxation,
socio-political, marketing or other relevant factors, please see the
Technical Reports for each of Coeur's properties as filed on SEDAR at www.sedar.com.

Cautionary Note to U.S. Investors-The United States Securities and
Exchange Commission permits U.S. mining companies, in their filings with
the SEC, to disclose only those mineral deposits that a company can
economically and legally extract or produce. We may use certain terms in
public disclosures, such as 'measured,' 'indicated,' 'inferred? and
'resources,' that are recognized by Canadian regulations, but that SEC
guidelines generally prohibit U.S. registered companies from including
in their filings with the SEC. U.S. investors are urged to consider
closely the disclosure in our Form 10-K which may be secured from us, or
from the SEC's website at http://www.sec.gov.

About Coeur

Coeur d′Alene Mines Corporation is the largest U.S.-based primary silver
producer and a growing gold producer. The Company built and commenced
production from three wholly-owned, long-lived mines between 2008 and
2010: the San Bartolom? silver mine in Bolivia, the Palmarejo
silver-gold mine in Mexico and the Kensington gold mine in Alaska.
Further production has commenced from a new heap leach pad at Coeur's
long-time Rochester silver-gold mine in Nevada. The Company also owns
and operates the Martha silver-gold mine in Argentina and owns a
non-operating interest in a silver-base metal mine in Australia. Coeur
conducts ongoing exploration activities near and within its operating
properties in Argentina, Mexico, Alaska, Nevada and Bolivia. In
addition, Coeur owns strategic minority shareholdings in seven silver
and gold development companies in North and South America.

Coeur d′Alene Mines Corporation

Wendy Yang, Vice President of
Investor Relations

(208) 665-0345

or

Stefany Bales,
Director of Corporate Communications

(208) 667-8263

www.coeur.com