Atna Reports Additional Positive Drill Results at Briggs Mine
Golden, CO - Atna Resources Ltd. ("Atna")
- (TSX:ATN - OTCBB:ATNAF) is pleased to report exciting drill results at
the Briggs Mine in Inyo County, California. This drilling focused on
identifying additional mineralization in the largely unexplored Deep
Briggs and the East Wall zones of the Main Briggs pit. Significant results include:
- 130
feet (39.6 meters) grading 0.036 ounces gold per ton
("opt") (1.23 grams/tonne gold) in the Briggs Deep zone,
including 50 feet (15.2 meters) grading 0.040 opt (1.37 g/t) and 40
feet (12.2 meters) grading 0.054 opt (1.85 g/t)
- 65
feet (19.8 meters) grading 0.032 opt (1.10g/t) in the Main
Briggs/East Wall
"These results demonstrate our ability to
find new resource potential at Briggs and may lead to a material increase
in the gold mineral resource in Briggs Deep and East Wall zones.
Furthermore, the intersections include higher than average mine grade
mineralization that will undoubtedly help in development of additional
economic reserves. This drilling program is likely to achieve the goal of
adding to ore reserves and mine life at the Briggs Mine," states
James Hesketh, President & CEO.
To date, six holes have been completed with assays received on the first
three holes. Hole number BMD11-059 encountered multiple, thick zones of
gold mineralization. The upper two intercepts are within the current
minable reserve and will upgrade some of the "in-pit" inferred
resource to reserve status. The deeper two sections are immediately below
the existing life of mine design pit floor within the Deep Briggs gold
zone and include from 515 feet to 645 feet or 130 feet (157.1m to 196.7m
-- 39.6m) grading 0.036 opt (1.23 g/t) and 690 feet to 790 feet or 100
feet (210.4m to 240.9m -- 30.5m) grading 0.019 opt (0.65 g/t).
Hole BMD11-060, on the same section as BMD11-059, was drilled in the
opposite direction at -50� to test the eastern high wall of the Main
Briggs pit and encountered gold mineralization within the design pit
limits and beyond the pit wall, as well as an additional, narrow zone of
gold mineralization deeper in the hole. Three additional holes north of
BMD11-059 have been completed to test the Main Briggs and Deep Briggs
zones and are being prepared for assay.
Assay Results
|
From-feet
(meters)
|
To-feet
(meters)
|
* Length-feet
(meters)
|
ounces/ton Au
(grams/tonne Au)
|
Zone
|
BMD11-059 (Azimuth 270,
Angle -65)
|
|
0 (0)
|
70 (21.3)
|
70 (21.3)
|
0.017 (0.58)
|
Main Briggs
|
|
95 (29.0)
|
115 (35.1)
|
20 (6.1)
|
0.010 (0.34)
|
Main Briggs
|
|
515 (157.1)
|
645 (196.7)
|
130 (39.6)
|
0.036 (1.23)
|
Deep Briggs
|
Including
|
515 (157.1)
|
565 (172.3)
|
50 (15.2)
|
0.040 (1.37)
|
|
Including
|
600 (182.9)
|
640 (195.1)
|
40 (12.2)
|
0.054 (1.85)
|
|
|
690 (210.4)
|
790 (240.9)
|
100 (30.5)
|
0.019 (0.65)
|
Deep Briggs
|
Including
|
735 (220.1)
|
755 (230.2)
|
20 (6.1)
|
0.040 (1.37)
|
|
Including
|
775 (236.3)
|
790 (240.9)
|
15 (4.6)
|
0.033 (1.13)
|
|
BMD11-060 (Azimuth 090,
Angle -50)
|
|
0 (0)
|
65 (19.8)
|
65 (19.8)
|
0.032 (1.10)
|
Main Briggs
|
|
320 (97.6)
|
340 (103.7)
|
20 (6.1)
|
0.011 (0.38)
|
East Wall
|
* Intercept length may not
represent true thicknesses of the mineralized body due to oblique
intersection of the mineralized zone by the drill hole.
Analytical results contained within this press release were completed by
standard fire assay methods with an atomic absorption or gravimetric
finish by Inspectorate America Corporation, an independent, ISO
certified, analytical laboratory located in Sparks, Nevada. Atna
maintains a rigorous Quality Assurance - Quality Control (QA/QC) program
utilizing both certified gold standards and blanks to augment
Inspectorate's internal QA/QC program.
This press release was prepared under the supervision and review of
William Stanley, V.P. Exploration of Atna, a Licensed Geologist, and
Qualified Person with the ability and authority to verify the
authenticity and validity of information contained within this news
release.
For additional information on Atna Resources and the Briggs Mine, please
visit our website at www.atna.com.
This press release contains
certain "forward-looking statements," as defined in the United
States Private Securities Litigation Reform Act of 1995, and within the
meaning of Canadian securities legislation relating to potential resource
or reserve expansion at the Briggs Mine. Forward-looking statements are
statements that are not historical fact. They are based on the beliefs,
estimates and opinions of the Company's management on the date the
statements are made and they involve a number of risks and uncertainties.
Consequently, there can be no assurances that such statements will prove
to be accurate and actual results and future events could differ
materially from those anticipated in such statements. The Company
undertakes no obligation to update these forward-looking statements if
management's beliefs, estimates or opinions, or other factors, should
change, unless required by law. Factors that could cause future results
to differ materially from those anticipated in these forward-looking
statements include: gold production and operating costs at the Briggs
Mine, the Company might encounter problems such as the significant
depreciation of metals prices; accidents and other risks associated with
mining exploration and development operations; the risk that the Company
will encounter unanticipated geological factors; the Company's need for
and ability to obtain additional financing; the possibility that the
Company may not be able to secure permitting and other governmental
clearances necessary to carry out the Company's exploration and
development programs; and the other risk factors discussed in greater
detail in the Company's various filings on SEDAR (www.sedar.com) with
Canadian securities regulators and its filings with the U.S. Securities
and Exchange Commission, including the Company's 2009 Form 20-F dated
March 26, 2010.
Cautionary Note to U.S. Investors --- The United States Securities and
Exchange Commission permits U.S. mining companies, in their filings with
the SEC, to disclose only those mineral deposits that a company can
economically and legally extract or produce. We use certain terms in this
report, such as "measured," "indicated,"
"inferred," and "resources," that the SEC guidelines
strictly prohibit U.S. registered companies from including in their
filings with the SEC.
FOR FURTHER INFORMATION, CONTACT:
James Hesketh, President and CEO - (303) 278-8464
Valerie Kimball, Investor Relations - toll free (877) 692-8182
www.atna.com
|