Capstone Reports Significant Drill Results From Mala Noche Footwall Zone, Cozamin Mine

By Capstone Mining Corp., PRNE
Sunday, September 19, 2010

Hole UG-ING-22 Intercepts 4.4% Cu & 85g/t Ag Over 17m, Including 5.3% Cu & 103g/t Ag Over 13.5m

VANCOUVER, September 20, 2010 - Capstone Mining Corp. (CS: TSX) today announced assay results confirming
a new high grade copper-silver discovery at its Cozamin Mine in Zacatecas
State, Mexico. Exploration drilling along the Mala Noche vein system is
delineating a new mineralized structure in the footwall rocks to the main
Mala Noche Vein (which hosts the current mineral reserves at Cozamin). This
new mineralized system is in close proximity to active mine workings and is
easily accessible, should mineral reserves be established.

Highlights of assays from the Mala Noche Footwall Zone (MNFWZ) are
summarized in the table immediately below and the full results for new holes
and historic holes are provided in the attached tables.

               2010 Drill Results for Mala Noche Footwall Zone
               -----------------------------------------------

    -------------------------------------------------------------------------
                 Target    From    To   Interval  Silver  Copper  Lead  Zinc
    Hole ID       Area      (m)    (m)   (m)(x)    (g/t)    (%)    (%)   (%)
    -------------------------------------------------------------------------
                   MN
    UG-ING-22   Footwall   66.50   83.50  17.00    85.7    4.35   0.03  0.26
    -------------------------------------------------------------------------
    including              68.50   82.00  13.50   103.3    5.30   0.03  0.31
    -------------------------------------------------------------------------
                   MN
    CG-10-U223  Footwall   82.00   86.38   4.38    87.3    4.01   0.06  0.19
    -------------------------------------------------------------------------
    including              82.00   84.52   2.52   139.6    6.50   0.09  0.28
    -------------------------------------------------------------------------
                   MN
    And         Footwall  103.00  105.05   2.05    30.2    1.95   0.02  0.08
    -------------------------------------------------------------------------
                   MN
    And         Footwall  108.15  115.53   7.38    38.5    2.39   0.03  0.22
    -------------------------------------------------------------------------
    including             111.10  115.20   4.10    62.6    3.97   0.03  0.25
    -------------------------------------------------------------------------
                   MN
    UG-ING-23   Footwall   82.00   85.50   3.50    51.4    3.14   0.02  0.15
    -------------------------------------------------------------------------
    including              83.00   84.25   1.25   109.6    6.65   0.02  0.31
    -------------------------------------------------------------------------
                   MN
    CG-10-U219  Footwall   79.20   83.53   4.33    44.9    3.00   0.02  0.56
    -------------------------------------------------------------------------
    including              80.67   82.88   2.21    71.1    5.36   0.01  0.19
    -------------------------------------------------------------------------
                   MN
    CG-10-U230  Footwall  188.55  192.70   4.15    50.8    3.39   0.13  1.81
    -------------------------------------------------------------------------

(x) Intervals reported are intercept lengths, true widths are estimated
to be similar to those reported. "The results from drilling of the
newly discovered Mala Noche Footwall Zone at the Cozamin Mine are very
encouraging," said Stephen Quin, Capstone's President. "The mineralization
remains open to expansion, and drilling is continuing. In parallel with the
continued exploration, Capstone has commenced estimating mineral resources
for this area, since the close proximity to existing mine workings offers
potential for near term production." Mala Noche Footwall Zone The MNFWZ, a
vein and breccia complex separate from the main Mala Noche Vein, is
associated with the margins of a rhyolitic dyke intruding into the footwall
rocks of the Mala Noche system and has been traced in drill holes over 700
metres along strike and 200 metres in the dip direction. This subsidiary
structure intersects the main Mala Noche vein system west of the San
Roberto
shaft at about a 30 degree angle and it is still open to the east,
up-dip and down-dip. The current mineral resources and mineral reserves at
the Cozamin Mine are entirely hosted in the main Mala Noche vein, and this
new discovery of the MNFWZ represents a new style of mineralization not
previously identified at Cozamin. The discovery of this new style of
mineralization presents an opportunity for the identification and discovery
of new, similar, mineralization in other areas where similar intersecting
structures are known. Update on 2010 Exploration Plan As stated on April 21
, 2010, the current 2010 exploration plan for Cozamin in 2010 and beyond is
twofold:

    1.  The focus of the first half of 2010 was on drilling targets that are
        in close proximity to the Mala Noche vein system and current mine
        workings, which means any new resources could easily be drill defined
        from existing workings. The discovery and expansion of the MNFWZ is
        the first product of this program, and drilling is continuing.
        Underground drilling has also commenced in an area east of the
        widest, higher grade part of the Cozamin Mine, currently being mined
        by Avoca methods. This exploration is being conducted on claims
        acquired by Capstone in 2009.

    2.  The second exploration priority is to evaluate and drill test
        exploration targets within Capstone's large land package surrounding
        the Cozamin mill, but which cannot be accessed through the current
        system of mine workings. This is the first such exploration by
        Capstone since the acquisition of the Cozamin Mine and surrounding
        land package. More than a dozen targets have been identified through
        mapping, sampling and geophysics and sufficient field work has been
        completed to begin drill testing about half of these. Drilling is
        expected to commence before the end of September 2010.

The 2010 exploration expenditures are budgeted at US$3.7 million,
exclusive of underground development costs.

For target locations relative
to the current mine workings please view the accompanying long-sections:
www.capstonemining.com/i/photos/cozamin/2010-40Cozamin01.jpg
www.capstonemining.com/i/photos/cozamin/2010-40Cozamin02.jpg

Quality Assurance/Quality Control

The technical information in this news release
has been prepared in accordance with Canadian regulatory requirements set
out in National Instrument 43-101 and reviewed by Stephen P. Quin, P. Geo.,
President of Capstone Mining Corp. The exploration activities at the
Cozamin Mine are carried out under the supervision of Brad Mercer, P. Geol
., VP Exploration of Capstone. Analyses for copper, zinc, lead, silver and
gold were completed by ALS Chemex using the following method. The entire
sample is crushed to a minimum of 70% minus 10 mesh. A 250g subsample of
the crushed material is then pulverized to 85% minus 200 mesh. Gold and
silver grades are determined by gravimetric fire assay using a 50g charge
taken from the pulverized material. Copper, zinc and lead are determined by
ICP analysis after 4 acid digestion of a 0.4g subsample of the pulverized
material.

Forward-Looking Information

This document may contain "forward-
looking information" within the meaning of Canadian securities legislation
and "forward-looking statements" within the meaning of the United States
Private Securities Litigation Reform Act of 1995 (collectively, "forward-
looking statements"). These forward-looking statements are made as of the
date of this document and Capstone Mining Corp. (the "Company") does not
intend, and does not assume any obligation, to update these forward-looking
statements, except as required under applicable securities legislation.
Forward-looking statements relate to future events or future performance
and reflect Company management's expectations or beliefs regarding future
events and include, but are not limited to, statements with respect to the
estimation of mineral reserves and resources, the realization of mineral
reserve estimates, the timing and amount of estimated future production,
costs of production, capital expenditures, success of mining operations,
environmental risks, unanticipated reclamation expenses, title disputes or
claims and limitations on insurance coverage. In certain cases, forward-
looking statements can be identified by the use of words such as "plans", "
expects" or "does not expect", "is expected", "budget", "scheduled", "
estimates", "forecasts", "intends", "anticipates" or "does not anticipate",
or "believes", or variations of such words and phrases or statements that
certain actions, events or results "may", "could", "would", "might" or "
will be taken", "occur" or "be achieved" or the negative of these terms or
comparable terminology. By their very nature forward-looking statements
involve known and unknown risks, uncertainties and other factors which may
cause the actual results, performance or achievements of the Company to be
materially different from any future results, performance or achievements
expressed or implied by the forward-looking statements. Such factors
include, among others, risks related to actual results of current
exploration activities; changes in project parameters as plans continue to
be refined; future prices of mineral resources; possible variations in ore
reserves, grade or recovery rates; accidents, labour disputes and other
risks of the mining industry; delays in obtaining governmental approvals or
financing or in the completion of development or construction activities;
as well as those factors detailed from time to time in the Company's
interim and annual financial statements and management's discussion and
analysis of those statements, all of which are filed and available for
review on SEDAR at www.sedar.com. Although the Company has attempted to
identify important factors that could cause actual actions, events or
results to differ materially from those described in forward-looking
statements, there may be other factors that cause actions, events or
results not to be as anticipated, estimated or intended. There can be no
assurance that forward-looking statements will prove to be accurate, as
actual results and future events could differ materially from those
anticipated in such statements. Accordingly, readers should not place undue
reliance on forward-looking statements.

           2010 Drill Results for Mala Noche Footwall Zone (MNFWZ)
           -------------------------------------------------------

    -------------------------------------------------------------------------
                 Target    From    To   Interval  Silver  Copper  Lead  Zinc
    Hole ID       Area      (m)    (m)   (m)(x)    (g/t)    (%)    (%)   (%)
    -------------------------------------------------------------------------
                   MN
    UG-ING-14   Footwall     Results previously released on April 21, 2010
    -------------------------------------------------------------------------
                   MN
    UG-ING-15   Footwall     Results previously released on April 21, 2010
    -------------------------------------------------------------------------
                   MN
    UG-ING-17   Footwall   64.75   65.25   0.50   282.5   10.12   0.33  3.35
    -------------------------------------------------------------------------
                   MN
    UG-ING-18   Footwall   44.50   45.25   0.75     2.9    2.33   0.01  0.13
    -------------------------------------------------------------------------
                   MN
    And         Footwall   59.00   60.00   1.00     3.6    2.25   0.38  0.08
    -------------------------------------------------------------------------
                   MN
    UG-ING-22   Footwall   66.50   83.50  17.00    85.7    4.35   0.03  0.26
    -------------------------------------------------------------------------
    including              68.50   82.00  13.50   103.3    5.30   0.03  0.31
    -------------------------------------------------------------------------
                   MN
    UG-ING-23   Footwall   69.25   70.50   1.25    20.4    1.40   0.01  0.59
    -------------------------------------------------------------------------
    And                    82.00   85.50   3.50    51.4    3.14   0.02  0.15
    -------------------------------------------------------------------------
    including              83.00   84.25   1.25   109.6    6.65   0.02  0.31
    -------------------------------------------------------------------------
                   MN
    UG-ING-24   Footwall   39.75   43.50   3.75    38.2    1.97   0.02  1.16
    -------------------------------------------------------------------------
    including              41.50   43.50   2.00    51.4    3.14   0.02  0.15
    -------------------------------------------------------------------------
                   MN
    And         Footwall   60.25   62.00   1.75    32.7    2.62   0.01  0.10
    -------------------------------------------------------------------------
    including              60.25   61.50   1.25    43.8    3.61   0.01  0.13
    -------------------------------------------------------------------------
                   MN
    UG-ING-25   Footwall   80.25   82.35   2.10    11.7    0.63   0.01  0.59
    -------------------------------------------------------------------------
    including              80.75   81.90   1.15    16.0    0.87   0.01  0.45
    -------------------------------------------------------------------------
                   MN
    UG-ING-35   Footwall   40.37   41.93   1.56    32.2    1.07   0.08  2.84
    -------------------------------------------------------------------------

    -------------------------------------------------------------------------
                   MN
    And         Footwall   55.48   56.30   0.82    40.9    2.72   0.02  0.10
    -------------------------------------------------------------------------
    including              55.48   56.03   0.55    56.5    3.82   0.02  0.14
    -------------------------------------------------------------------------
                   MN
    UG-ING-36   Footwall   47.25   48.10   0.85    56.9    4.33   0.01  0.14
    -------------------------------------------------------------------------

    -------------------------------------------------------------------------
                   MN
    And         Footwall   57.30   64.25 6.951.20  27.6    1.75   0.01  0.41
    -------------------------------------------------------------------------
    including              57.30   58.50   1.20   119.4    8.01   0.02  1.49
    -------------------------------------------------------------------------
                   MN
    UG-ING-40   Footwall    0.55    1.55   1.00   64.00    1.93   0.00  2.28
    -------------------------------------------------------------------------
    including               0.55    1.05   0.50   102.0    3.07   0.00  2.78
    -------------------------------------------------------------------------
                   MN
    And      Footwall Zn    3.70    5.10   1.40   11.14    0.03   0.19  2.77
    -------------------------------------------------------------------------
                   MN
    And      Footwall Zn   19.65   22.40   2.75    6.09    0.07   0.00  2.95
    -------------------------------------------------------------------------
                   MN
    And      Footwall Zn   26.95   29.45   2.50    8.20    0.09   0.33  2.32
    -------------------------------------------------------------------------
                   MN
    CG-10-U218  Footwall   50.25   52.05   1.80    43.1    2.52   0.04  0.13
    -------------------------------------------------------------------------
    including              51.20   52.05   0.85    81.6    4.93   0.08  0.26
    -------------------------------------------------------------------------
                   MN
    And         Footwall   53.40   57.50   4.10    36.7    2.06   0.01  0.12
    -------------------------------------------------------------------------
    including              54.05   54.60   0.55   103.5    6.99   0.01  0.26
    -------------------------------------------------------------------------
    including              55.90   57.50   1.60    38.7    1.73   0.02  0.15
    -------------------------------------------------------------------------
                   MN
    CG-10-U219  Footwall   59.03   60.34   1.31    28.3    1.69   0.03  0.64
    -------------------------------------------------------------------------
    including              59.29   60.34   1.05    34.0    2.00   0.04  0.79
    -------------------------------------------------------------------------
                   MN
    And         Footwall   79.20   83.53   4.33    44.9    3.00   0.02  0.56
    -------------------------------------------------------------------------
    including              80.67   82.88   2.21    71.1    5.36   0.01  0.19
    -------------------------------------------------------------------------
                   MN
    CG-10-U220  Footwall  135.10  142.95   7.85     6.8    0.01   0.41  2.61
    -------------------------------------------------------------------------
    including             136.70  138.32   1.62    10.2    0.01   0.34  6.02
    -------------------------------------------------------------------------
    including             141.24  142.40   1.16     7.4    0.00   1.70  3.57
    -------------------------------------------------------------------------
                   MN
    And         Footwall  162.20  180.52  18.32    16.8    0.01   0.57  5.45
    -------------------------------------------------------------------------
    including             162.20  165.60   3.40    21.9    0.01   0.88  6.29
    -------------------------------------------------------------------------
                   MN
    CG-10-U221  Footwall  249.25  251.00   1.75    28.4    1.43   0.02  0.87
    -------------------------------------------------------------------------
    including             249.75  250.75   1.00    41.8    2.16   0.01  1.07
    -------------------------------------------------------------------------
                   MN
    And         Footwall  276.25  279.65   3.40    55.6    1.67   0.02  0.06
    -------------------------------------------------------------------------
    including             276.75  278.65   1.90    28.7    2.24   0.02  0.08
    -------------------------------------------------------------------------
                   MN
    CG-10-U222  Footwall  223.35  224.40   1.05    22.6    0.68   0.07  0.17
    -------------------------------------------------------------------------
                   MN
    And         Footwall  274.20  275.35   1.15    31.5    1.50   0.06  0.11
    -------------------------------------------------------------------------
                   MN
    And      Footwall Zn  196.02  197.65   1.63    7.33    0.07   0.33  1.31
    -------------------------------------------------------------------------
                   MN
    CG-10-U223  Footwall   80.00   80.95   0.95    68.6    3.66   0.05  0.14
    -------------------------------------------------------------------------
                   MN
    And         Footwall   82.00   86.38   4.38    87.3    4.01   0.06  0.19
    -------------------------------------------------------------------------
    including              82.00   84.52   2.52   139.6    6.50   0.09  0.28
    -------------------------------------------------------------------------
                   MN
    And         Footwall  103.00  105.05   2.05    30.2    1.95   0.02  0.08
    -------------------------------------------------------------------------
    including             103.00  104.00   1.00    50.0    3.34   0.03  0.14
    -------------------------------------------------------------------------
                   MN
    And         Footwall  108.15  115.53   7.38    38.5    2.39   0.03  0.22
    -------------------------------------------------------------------------
    including             111.10  115.20   4.10    62.6    3.97   0.03  0.25
    -------------------------------------------------------------------------
                   MN
    CG-10-U224  Footwall  131.56  133.00   1.44    24.4    0.82   0.06  0.37
    -------------------------------------------------------------------------
    including             132.06  132.75   0.69    32.0    1.27   0.06  0.26
    -------------------------------------------------------------------------
                   MN
    And         Footwall  145.30  149.00   3.70    12.0    1.06   0.00  0.03
    -------------------------------------------------------------------------
                   MN
    And         Footwall  155.10  156.10   1.00    40.5    1.35   0.05  1.40
    -------------------------------------------------------------------------
    including             155.60  156.10   0.50    67.0    2.55   0.04  2.69
    -------------------------------------------------------------------------
                   MN
    And         Footwall  172.15  173.10   0.95    13.2    0.72   0.01  1.20
    -------------------------------------------------------------------------
                   MN
    CG-10-U225  Footwall   63.20   64.55   1.35    11.7    0.27   0.05  0.50
    -------------------------------------------------------------------------
                   MN
    And         Footwall  146.50  149.40   2.90    22.6    1.34   0.02  1.61
    -------------------------------------------------------------------------
    including             147.80  148.75   0.95    49.2    3.16   0.02  0.89
    -------------------------------------------------------------------------
                   MN
    CG-10-U226  Footwall  214.50  215.65   1.15    53.6    1.62   0.14  0.05
    -------------------------------------------------------------------------
                   MN
    And         Footwall  225.70  226.60   0.90    42.5    3.74   0.05  0.14
    -------------------------------------------------------------------------
                   MN
    And         Footwall  232.75  233.05   0.30    62.0    4.62   0.01  0.28
    -------------------------------------------------------------------------
                   MN
    And         Footwall  235.40  235.95   0.55    23.0    1.50   0.04  0.10
    -------------------------------------------------------------------------
                   MN
    And      Footwall Au  243.60  245.80   2.20    46.8    0.91   0.01  0.04
    -------------------------------------------------------------------------
    including             243.60  244.80   1.20    81.7    1.63   0.01  0.07
    -------------------------------------------------------------------------
                   MN
    And         Footwall  249.90  252.77   2.87    23.2    1.11   0.02  0.03
    -------------------------------------------------------------------------
    including             252.05  252.77   0.72    45.0    1.80   0.04  0.05
    -------------------------------------------------------------------------
                   MN
    And         Footwall  258.40  262.10   3.70    26.4    0.83   0.01  0.03
    -------------------------------------------------------------------------
    including             259.15  259.65   0.50    31.0    1.77   0.01  0.05
    -------------------------------------------------------------------------
                   MN
    CG-10-U227  Footwall   26.25   26.90   0.65    89.0    3.81   0.11  0.36
    -------------------------------------------------------------------------
                   MN
    And         Footwall   48.75   49.70   0.95    31.0    1.40   0.03  0.09
    -------------------------------------------------------------------------
    including              49.15   49.70   0.55    44.0    2.19   0.02  0.11
    -------------------------------------------------------------------------
                   MN
    And         Footwall   52.85   54.30   1.45    53.6    2.70   0.02  0.09
    -------------------------------------------------------------------------
    including              52.85   53.80   0.95    70.7    3.55   0.03  0.11
    -------------------------------------------------------------------------
                   MN
    And         Footwall   70.05   72.20   2.15     7.1    0.00   0.09  3.60
    -------------------------------------------------------------------------
    CG-10-         MN
    U228     Footwall Au    0.70    2.50   1.80     5.6    0.03   0.01  0.07
    -------------------------------------------------------------------------
                   MN
    And         Footwall   43.50   44.07   0.57    76.0    4.72   0.01  0.17
    -------------------------------------------------------------------------
                   MN
    And         Footwall   60.45   61.65   1.20    25.2    0.85   0.12  1.07
    -------------------------------------------------------------------------
    including              61.10   61.65   0.55    49.0    1.82   0.03  0.13
    -------------------------------------------------------------------------
                   MN
    And      Footwall Zn   82.65   83.35   0.70     8.0    0.01   0.37 13.00
    -------------------------------------------------------------------------
                   MN
    And         Footwall   85.85   88.10   2.25     6.7    0.06   0.11  4.94
    -------------------------------------------------------------------------
    including              87.55   88.10   0.55    12.0    0.13   0.42 10.50
    -------------------------------------------------------------------------
                   MN
    CG-10-U230  Footwall   153.7  154.40   0.70    49.0    2.48   0.10  3.63
    -------------------------------------------------------------------------
                   MN
    And         Footwall  180.35  180.90   0.55    23.0    1.22   0.01  0.09
    -------------------------------------------------------------------------
                   MN
    And         Footwall  188.55  192.70   4.15    50.8    3.39   0.13  1.81
    -------------------------------------------------------------------------
    Including             189.05  192.70   3.65    55.2    3.68   0.15  2.03

    -------------------------------------------------------------------------

For further information: For further information: about Capstone, please
contact: Darren Pylot, Vice Chairman & CEO, Stephen Quin, President; Or
Investor Relations' Zobeida Slogan at +1(604)684-8894 or +1(866)684-8894,
zslogan@capstonemining.com

For further information: For further information: about Capstone, please contact: Darren Pylot, Vice Chairman & CEO, Stephen Quin, President; Or Investor Relations' Zobeida Slogan at +1(604)684-8894 or +1(866)684-8894, zslogan at capstonemining.com

YOUR VIEW POINT
NAME : (REQUIRED)
MAIL : (REQUIRED)
will not be displayed
WEBSITE : (OPTIONAL)
YOUR
COMMENT :