Mines Management Comments On Unusual Trading Activity

FOR IMMEDIATE RELEASE

RELEASE 11-11

MINES MANAGEMENT COMMENTS ON UNUSUAL TRADING ACTIVITY

Spokane, Washington - December 6, 2011 - Mines Management, Inc. (NYSE-Amex:
"MGN", TSX: "MGT") (the "Company").  In view of the unusual market activity in
the common stock of Mines Management, Inc. (NYSE Amex: MGN), the NYSE Amex has
contacted the Company ("MMI") in accordance with its usual practice.

While ordinarily it is the Company's policy to not comment on unusual market
activity, or market rumors, it confirmed that it is not aware of any material
corporate developments which could account for the recent unusual trading
activity in the Company's shares.

About Mines Management



Mines Management, Inc. is engaged in the business of acquiring and exploring,
and if exploration is successful, developing mineral properties containing
precious and base metals.  The Company's primary focus is on the advancement of
the Montanore silver-copper project located in northwestern Montana.  The
Montanore is an advanced stage exploration project, which contains a Canadian
NI43-101 compliant resource of approximately 81.5 million tons of material with
average grades of 2.04 ounces silver per ton and 0.75% copper, in the measured
and indicated category, plus an inferred resource of 35.1 million tons with
average grades of 1.85 ounces silver per ton and 0.71% copper.


Cautionary Note to U.S. Investors concerning estimates of Measured, Indicated
and Inferred Mineral Resources:

This press release uses the terms "Measured Mineral Resources," "Indicated
Mineral Resources" and "Inferred Mineral Resources."  We advise U.S. investors
that while those terms are recognized and required by Canadian NI 43-101, the
Securities and Exchange Commission does not recognize them.  U.S. investors are
cautioned not to assume that any part or all of the mineral deposits in these
categories will ever be converted into mineral reserves.  Inferred Mineral
Resources have a greater amount of uncertainty as to their existence and as to
their economic and legal feasibility.  In accordance with Canadian rules,
estimates of Inferred Mineral Resources cannot form the basis of feasibility or
other economic studies.  U.S. investors are cautioned not to assume that part or
all of the Inferred Mineral Resources exists, or is economically or legally
mineable.  Disclosure of "contained ounces" in a Mineral Resource is permitted
under Canadian regulations, however, the SEC normally only permits issuers to
report mineralization that does not constitute 'reserves' by SEC standards as in
place tonnage and grade without reference to unit measures.  Accordingly, the
information contained in this press release may not be comparable to similar
information made public by U.S. companies that are not subject to NI 43-101.


FOR MORE INFORMATION:

Mines Management, Inc.

905 W. Riverside Avenue - Suite 311

Spokane, Washington  99201

Phone:                 509 838 6050

Fax:                        509 838 0486

Email:                    info@minesmanagement.com

Web:                     www.minesmanagement.com

Douglas Dobbs, Vice President of Corporate Development









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Source: Mines Management Inc. via Thomson Reuters ONE

[HUG#1569598]


Unternehmen: Mines Management Inc. - ISIN: US6034321058