NIB Niblack Mineral Development

Niblack Mineral Development Inc. ("Niblack" or the "Company") (TSX VENTURE:NIB)
is pleased to announce that joint venture partner Heatherdale Resources Ltd.
("Heatherdale") (TSX VENTURE:HTR) has satisfied requirements to earn an
additional 9% ownership interest (resulting in a total ownership Interest of
60%) in the Niblack Project as contemplated by the June 2009 LLC Agreement of
the Niblack Project LLC (the "Agreement").


"We look forward to working with Heatherdale and utilizing the resources of both
groups to expedite the advancement of the Niblack Project toward the
prefeasibility stage," stated Niblack's President and CEO, John Williamson.


Heatherdale has advised Niblack that it has elected to pursue the property
development under a 60/40 joint venture rather than continue to earn a larger
percentage interest at this time. Heatherdale and Niblack have approved a budget
going forward and Heatherdale has agreed to sole fund operations for a 60 day
period to facilitate the uninterrupted continuation of the current exploration
program.


Since its formation in June 2009, the joint venture has completed some 130,000
feet of underground drilling at the Niblack Project and work programs have been
very successful. Earlier this year, the joint venture announced a 54% increase
in mineral resources in the Lookout and Trio deposit over those known to exist
in 2009. At a US$50 NSR cut off(1), the March 2011 estimate comprises 4.1
million tonnes of Indicated resources grading 1.13% copper, 2.32 g/t gold, 2.27%
zinc and 38.70 g/t silver and 2.5 million tonnes of Inferred resources grading
1.21% copper, 1.77 g/t gold, 2.29% zinc and 25.90 g/t silver. A continuous 1.5
million-tonne high-grade zone occurs within the indicated resource, grading
1.73% copper, 3.50 g/t gold, 3.84% zinc and 61.60 g/t silver at US$150 NSR
cutoff (see March 7, 2011 news release).


These resources laid the foundation for advancing the project to the next stage
of engineering and scoping studies, which are a part of the 2011 program.
Further, recent results from drilling have confirmed that the geological model
for the project is robust and successfully targeting new mineralization. In
particular, a new zone has been intersected in drilling (see July 28, 2011 news
release) that is expected to add to the mineral resources. As only approximately
1/4 of the six miles of prospective horizon that hosts the Niblack deposits has
been tested by drilling, there is significant additional resource potential on
the property.


The location of the Niblack Project at tidewater on Prince of Wales Island in
southeast Alaska presents a number of project benefits, including year-round
marine access, a well-trained labour force, a mature supply and service sector,
proximity to Asian markets, and the support of community and Alaska Native
corporation partners. The project is located 27 miles (44 km) from Ketchikan, a
community of 8000 people with important services to support project development,
including a deep water port and international airport. The State's burgeoning
minerals industry also enjoys a competitive tax regime and stable, predictable
permitting and regulatory oversight coordinated by the Alaska Department of
Natural Resources' 'Large Mine Permitting Team'. For reference, Hecla's Greens
Creek, a 2,100-ton per day underground massive sulphide mine, operates 225 miles
(370 km) to the northwest of Niblack on Admirality Island.


Peter Kleespies, P.Geol., a Qualified Person as defined under National
Instrument 43-101, is supervising the exploration and quality assurance and
quality control programs on behalf of Niblack and has reviewed the content of
this release.


About Niblack Mineral Development Inc. 

Niblack Mineral Development Inc. (TSX VENTURE:NIB) is an exploration and
development company with a number of mineral rich assets in South East Alaska.
The Corporation's principal asset is the Niblack advanced stage
copper-gold-zinc-silver project. This project is currently a joint venture
operated by Heatherdale Resources Ltd. (part of the Hunter Dickinson group of
companies) which has earned a 60% interest in the project.


Niblack Mineral Development Inc. is a member of the Discovery Group of
companies, for more information on the group visit www.discoveryexp.com.


On behalf of the Board

Niblack Mineral Development Inc.

John Williamson, President, CEO & Director

This release includes certain statements that may be deemed "forward-looking
statements". All statements in this release, other than statements of historical
facts, that address exploration drilling, exploitation activities and events or
developments that the company expects are forward looking statements. Although
the company believes the expectations expressed in such forward-looking
statements are based on reasonable assumptions, such statements are not
guarantees of future performance and actual results or developments may differ
materially from those in the forward-looking statements. Factors that could
cause actual results to differ materially from those in forward-looking
statements include market prices, exploitation and exploration successes,
continuity of mineralization, uncertainties related to the ability to obtain
necessary permits, licenses and title and delays due to third party opposition,
changes in government policies regarding mining and natural resource exploration
and exploitation, and continued availability of capital and financing, and
general economic, market or business conditions. Investors are cautioned that
any such statements are not guarantees of future performance and actual results
or developments may differ materially from those projected in the
forward-looking statements. For more information on the Company, investors
should review the Company's continuous disclosure filings that are available at
www.sedar.com.

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