Callinan Mines Limited – Drilling at Gossan Hill Intersects 5.94 g/Mt over 14.77 metres

March 3, 2011

VANCOUVER, March 3 /PRNewswire/ – Callinan Mines (TSXV: CAA) (OTCBB: CCNMF) is
pleased to report that assay results have confirmed that DDH GOS 28 has
intersected 5.94 grams of gold per tonne and 22.00 grams of silver per
tonne over 14.77 meters at its Gossan Hill Property, Manitoba.
Highlights from GOS 28 are included in the table below.

    |      |from (m)|To (m)|Core Width (m)|Au g/Mt|Ag g/Mt|
    |      |        |      |              |       |       |
    |GOS028|  267.99|272.20|          4.21|   3.42|   5.84|
    |      |        |      |              |       |       |
    |GOS028|  277.03|291.80|         14.77|   5.94|  22.00|
    |Incl. |  287.50|291.80|          4.30|  13.26|  54.46|

* true widths represent approximately 60% of core widths.

To date, 27 of 28 holes drilled by Callinan at Gossan Hill have produced
gold mineralization (DDH GOS 27 was abandoned at 52 meters due to
deviation). The mineralized intersection in hole GOS 28 occurs
approximately 100 meters down strike and dip of previously announced
GOS 25, which graded 9.73 grams of gold per tonne and 6.91 grams of
silver per tonne over a core width of 5.75 meters.

The gold and silver mineralization at Gossan Hill is strongly associated
with sulphide mineralization (pyrite, chalcopyrite and galena) within
quartz carbonate veining adjacent to a sheared intrusive / volcanic
contact zone. Interpretations of mapped geology indicate that the
structure has a strike length of at least two kilometers.

Callinan Mines maintained a QA/QC program at all stages of exploration.
Drill core recovery was calculated, measured and recorded at the Gossan
Hill Property before being cut and sampled. Samples were split in half,
one half of each sample being kept for storage and the other half
placed in a pre-labeled plastic bag, tagged with the sample number and
recorded in the log. Callinan QA/QC samples were inserted into the
group of samples and shipped to Acme Analytical Laboratories in
Vancouver, BC, where they were crushed, split, and pulverized to 250 g
samples at 200 mesh. Pulp samples were then assayed by Aqua Regia
digestion ICP-ES analysis (24 elements) and assayed for gold and silver
by fire assay method. The lab employs internal quality control by
assaying pulp duplicates and inserting quality control standards of
predetermined values and a blank sample.

On Behalf of the Board of Directors,

Mike Muzylowksi

Mike Muzylowski

All of Callinan’s exploration programs are conducted under the direction
of J.J. O’Donnell, P.Geo ,Vice President of Exploration for Callinan
and a qualified person as defined by national instrument 43-101, who
has reviewed and approved the contents of this release.

Neither the TSX Venture Exchange nor its Regulation Services Provider
(as that term is defined in the policies of the TSX Venture Exchange)
accepts responsibility for the adequacy or accuracy 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 work programs and the timing and
amount of expenditures. Callinan does not assume the obligation to
update any forward-looking statement.

SOURCE Callinan Mines Ltd.

Source: newswire

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