Callinan Expands Coles Creek Program

August 4, 2010

VANCOUVER — Callinan Mines is pleased to report that a second drill has been mobilized to their Coles Creek property in order to take full advantage of the summer drill season. The focus of the Coles Creek program is a brecciated volcanic, basin-like feature known to contain silver-lead-zinc mineralization. DDH COLE-18, collared in the volcanic, basin-like feature during the 2008 drill program, returned 141 meters of 20.5 g/mt silver and .32% zinc, including 4.7 meters of 200 g/mt silver and 1.09% zinc.

Extensive induced polarization geophysical surveys were conducted in 2009, yielding high chargeablilty and low resistivity targets coincident with known mineralization, both on surface and in drill holes. The 2010 drill program, already underway, will test these targets. Maps of geophysical surveys and diamond drill holes are available at

The Coles Creek project consists of more than 13,000 hectares, south of Houston, BC in the Omineca Mountain range. The property is 17 kilometers south of the Huckleberry mine, and 70 kilometers southwest of the formerly producing Equity Silver Mine. Many areas of known mineralization are present at Coles Creek.

On behalf of the board of directors,

Mike Muzylowski

Mike Muzylowski

All of Callinan’s exploration programs are conducted under the direction of Pat Deveaux, P.Geo, a qualified person as defined by national instrument 43-101, who has reviewed and approved the contents of this release.
Some statements in this news release contain forward-looking information. These statements include, but are not limited to, statements with respect to future expenditures. These statements address future events and conditions and, as such, involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the statements. Such factors include, among others, the ability to complete contemplated private placements and the timing and amount of expenditures. Callinan does not assume the obligation to update any forward-looking statement.