Sienna Announces Callanquitas Mineral Resource Estimate

Sienna Gold Inc ("Sienna" or the "Company") (TSX VENTURE:SGP) (LMA:SGP) is
pleased to announce the release of an initial mineral resource estimate for the
Callanquitas Structure, at its 100%-owned Igor project, in La Libertad, Peru.


Highlights include:



--  Inferred Mineral resource of 7.2 million tonnes grading 1.94 grams per
    tonne (g/t) gold and 71.8 g/t silver, which equates to 3.16 gold
    equivalent (Au Eq(i)) g/t using a cut-off grade of 1.5Au Eq(i) g/t.

--  Approximately 448,500 ounces of gold and 16,600,000 ounces of silver
    which equate to approximately 730,500 Au Eq(i) ounces.

--  The Callanquitas Structure remains open along strike and at depth.

--  Discovery cost of about US$14 per Au Eq(i) ounce.



The mineralization at Callanquitas comprises intermediate sulfidation epithermal
gold and silver. It occurs in hydrothermal breccias and sheeted veins.
Originally sulfide-rich, these are now strongly oxidised, commonly to more than
300-400 m below surface. Polished thin sections suggest that, in oxidised rocks,
the gold occurs freely (not encapsulated in sulphides) and that silver occurs as
chlorargyrite, acanthite and native silver. The long section below shows
piercement points and AuEq grade as a grams x metre plot.


To view the map associated with this press release, please visit the following
link: http://media3.marketwire.com/docs/1113sgpimage.jpg


Epithermal mineralization at Igor was superimposed onto widespread
porphyry-style hydrothermal alteration, including sericite + pyrite + quartz.


A table presenting the estimated Inferred Mineral resource is shown below, with
various cut-off grades for comparison purposes. Highlighted in the table is a
base case cut-off threshold of 1.5 g/t AuEq cut-off which is considered
appropriate for potential underground mining activities of a deposit of this
type, scale and location. Resource tonnages were estimated using a dry density
of 2.55 tonnes per cubic metre.




----------------------------------------------------------------------------
                                                                  Contained 
 Cut-Off Au  Tonnes   Au Eq     Au     Ag   Contained  Contained    Au Eq   
  Eq (g/t)    (kt)   (g/t)(i) (g/t)  (g/t)   Au (koz)   Ag (Moz)   (koz)(i) 
----------------------------------------------------------------------------
    0.5      11,291    2.39    1.47   53.8    535.0       19.5      866.9   
----------------------------------------------------------------------------
     1       9,486     2.70    1.67   60.5    508.6       18.4      822.1   
----------------------------------------------------------------------------
----------------------------------------------------------------------------
    1.5      7,189     3.16    1.94   71.8    448.5       16.6      730.5   
----------------------------------------------------------------------------
----------------------------------------------------------------------------
     2       5,460     3.61    2.19   83.7    384.6       14.7      634.3   
----------------------------------------------------------------------------
    2.5      3,992     4.11    2.45   98.2    313.9       12.6      528.1   
----------------------------------------------------------------------------
     3       2,730     4.75    2.73  119.1    239.4       10.5      417.1   
----------------------------------------------------------------------------



(i)Au Eq = Au + (Ag(i)0.017) based on a gold price of US$1500/oz and a silver
price of US$25/oz (a ratio of 60:1).


John Rucci, CEO and President of Sienna Gold Inc, comments, "the Company is very
pleased with these results. Given the current market conditions for precious
metals, Igor is now a very significant asset. This bodes well for the Company
and its shareholders.


Drilling and resource calculation have been completed in a timely fashion. The
drilling cost at Callanquitas, about US$ 10 Million, equates to a discovery cost
of about US$14 per AuEq ounce. 


Furthermore, there is considerable 'upside' potential. Like most epithermal
deposits, there are higher grade portions at Callanquitas with great potential
for expansion. The long section shows, at a glance, areas where future drilling
can potentially expand the resource. The Structure is also open to the south, at
depth, and contains gaps that need additional drilling.


Future work includes drilling to increase the size of the resource.
Metallurgical testing will also be carried out. Initial petrography is
encouraging, with a large part of the potential ore oxidized and therefore
possibly amenable to low cost leaching. Surface sampling is also underway on a
number of other nearby mineralized structures, with a combined strike length of
over 8 km. None of this work would be possible without the support of the
community at Callanquitas, for which we are very grateful."


Mineral resources which are not mineral reserves do not have demonstrated
economic viability. Confidence in a mineral resource estimate is insufficient to
allow the meaningful application of technical and economic parameters or to
enable an evaluation of economic viability worthy of public disclosure.


The quantity and grade of reported Inferred Resources in this estimation are
uncertain in nature and there has been insufficient exploration to define these
inferred resources as an indicated or measured mineral resource and it is
uncertain if further exploration will result in upgrading them to an indicated
or measured mineral resource category.


Mineral Resource Estimation Methodology

The mineral resource estimate is generated using a total of 74 drill holes with
a cumulative total of 18,899 metres. Holes are collared from surface drill
stations with pierce points designed to intersect the mineralized zone at
intervals generally ranging from 50-70 metres (m).


There are a total of 11,659 individual samples used in the resource estimate.
The samples were collected and analyzed in accordance with industry standards.
Splits from the drill core samples were submitted to ALS (Holes CA-10-01 to
CA-11-08) and SGS (Holes CA-11-09 to CA-12-73) in Lima, Peru for fire assay and
ICP analysis. The accuracy and precision of the assay results were tracked
through the systematic inclusion of standards, blanks and check assays.


The November 2012 mineral resource estimate for the Callanquitas deposit was
prepared under the direction of Robert Sim (PGeo) of SIM Geological Inc. It uses
drill hole sample assay results and the interpretation of a geologic model that
relates to the spatial distribution of gold and silver in the deposit.
Interpolation characteristics were defined based on geology, drill hole spacing
and geostatistical analysis of data. Block grade estimates were done using
Ordinary Kriging (OK) with a nominal block size of 5 m long, 3 m wide and 5 m
high. Resources are classified based on the proximity to sample data and are
reported, as required under National Instrument 43-101 (NI 43-101), according to
the CIM standards for Mineral Resources and Reserves. 


All Mineral Resources are reported on a 100% basis for Sienna-controlled properties.

Within 45 days, Sienna will file an NI 43-101 compliant technical report with
the applicable securities regulatory authorities that supports the technical
information contained herein. This report will be available for viewing under
the corporate profile of Sienna Gold Inc. at www.sedar.com.


This press release was reviewed and approved by Dr Warren Pratt (CGeol) who is a
"Qualified Person" according to NI 43-101. Robert Sim (PGeo) is a Qualified
Person and is responsible for the preparation of the mineral resource estimate.


Sienna Gold Inc is a gold exploration company with property interests in Peru.
Its key prospect is the Igor Mine Project, a formerly producing mine that the
Corporation is exploring further.


If you wish any further information, please feel free to contact John Rucci at
any of the contact points noted above.


John M Rucci, President

WARNING: the Company relies upon litigation protection for "forward looking"
statements. The information in this release may contain forward-looking
information under applicable securities laws. This forward-looking information
is subject to known and unknown risks, uncertainties and other factors that may
cause actual results to differ materially from those implied by the
forward-looking information. Factors that may cause actual results to vary
materially include, but are not limited to, inaccurate assumptions concerning
the exploration for and development of mineral deposits, currency fluctuations,
unanticipated operational or technical difficulties, changes in laws or
regulations, the risks of obtaining necessary licenses and permits, changes in
general economic conditions or conditions in the financial markets and the
inability to raise additional financing. Readers are cautioned not to place
undue reliance on this forward-looking information. The Company does not assume
the obligation to revise or update this forward-looking information after the
date of this release or to revise such information to reflect the occurrence of
future unanticipated events, except as may be required under applicable
securities laws.


FOR FURTHER INFORMATION PLEASE CONTACT: 
Sienna Gold Inc.
John Rucci
403-508-2061
403-508-2670 (FAX)
rucci@siennagold.com


Sienna Gold Inc.
SUITE 1100,
800 6TH AVENUE S.W
CALGARY, ALBERTA
CANADA T2P 3G3
www.siennagold.com
Peruvian Precious Metals Corporation (TSXV:SGP)
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