Coeur Rochester Receives Notice of Claim Dispute

Coeur d′Alene Mines Corporation (NYSE:CDE) ?(TSX:CDM) reports that Rye
Patch Gold Corp. has challenged Coeur′s ownership of a substantial
portion of its unpatented claims at its Rochester property located in
northern Nevada. On December 5, 2011, Coeur filed a legal complaint in
Pershing County, Nevada asserting that its unpatented claims are valid
and that it has a valid possessory interest in such claims. The Company
is seeking damages and an injunction preventing Rye Patch Gold from
interfering with its claims.

The Company continues to review this matter and intends to vigorously
defend its rights. The Company cannot predict the outcome of this
matter, including legal outcomes and the likelihood of diminishment of
its Rochester property package. However, the Company preliminarily
estimates that the disputed claims may involve up to 20 percent of the
Rochester property′s mineral reserves and a substantial amount of the
property′s mineralized material.

At this time, operating activities at Rochester continue. Through the
first nine months of 2011, Rochester produced approximately 1.0 million
ounces of silver and 4,283 ounces of gold.

Cautionary Statement

This news release contains forward-looking statements within the meaning
of securities legislation in the United States and Canada, including
statements regarding anticipated operating results. Such statements are
subject to numerous assumptions and uncertainties, many of which are
outside the control of Coeur. Operating, production, reserves and
mineralized material information and estimates regarding the Rochester
silver-gold mine, the outcome of the legal and technical analysis of the
Rochester property and unpatented claims, allegations of competing
unpatented property claims and other third party characterizations,
financial position of Coeur to pursue legal and technical undertakings,
length of time to a resolution, and other statements in this release are
based on information that Coeur believes is reasonable, but involve
significant uncertainties affecting the business of Coeur, including,
but not limited to, the outcome of legal action, future gold and silver
prices, costs, ore grades, estimation of gold and silver reserves,
mining and processing conditions, construction schedules, currency
exchange rates, the risks and hazards inherent in the mining business
(including environmental hazards, industrial accidents, weather or
geologically related conditions), regulatory and permitting matters, 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, 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, except as required by law.
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.

Coeur d′Alene Mines Corporation

Investor Relations

Wendy Yang,
208-665-0345

www.coeur.com