Atna Drills 100 feet (30.5 m) grading
0.058 oz/ton gold (1.97 g/t)
Golden, CO -- Atna
Resources Ltd. ("Atna" or
the "Company") (TSX:ATN / OTCBB:ATNAF) is pleased to report
positive drill results in the Deep Briggs mineral resource area of the
Briggs Mine, California ("Briggs"). Highlights of the recently
assayed drill holes include:
Main/Deep Briggs
- 100
feet (30.5 m) grading 0.058 oz/ton gold (1.97 g/t), including 45
feet (13.7 m) grading 0.097 oz/ton gold (3.23 g/t) in hole BMD11-064
extending the zone to the east beyond the existing resource.
- 60
feet (18.3 m) grading 0.041 oz/ton gold (1.42 g/t) in hole number
BMD11-062 extending the zone to the north of the existing resource.
- 75
feet (22.9 m) grading 0.037 oz/ton gold (1.26 g/t) and 245 feet
(74.7 m) grading 0.024 oz/ton gold (0.82 g/t) in hole number
BMD11-066 in an area of wide spaced holes within the Deep Briggs
resource area.
"These intercepts represent the best we have seen within Deep
Briggs. Exploration has outlined a higher grade area within and beyond
the existing resource with current dimensions of 200 meters long, 75 to
100 meters wide with thicknesses ranging from 20 meters to over 60
meters. The zone is open and is developing into a large, coherent body of
strong gold mineralization at grades substantially higher than the mine's
reserve grade." said James Hesketh,
President & CEO.
These new drill holes are contiguous with, extend and infill the broad
mineralized zones reported in previous press releases issued between
February and April 2011. Drilling continues and is designed to fill in
areas of widespread drilling and to extend the mineralized zone along
trend.
Detailed Assay Results
|
From-feet (meters)
|
To-feet (meters)
|
* Length-feet (meters)
|
ounces/ton Au (grams/tonne Au)
|
Pit or Zone
|
BMD11-062 (Azimuth 330, Angle -55)
|
|
65 (19.8)
|
175 (53.4)
|
110 (33.5)
|
0.018 (0.62)
|
Main/Deep
Briggs
|
|
200 (61.0)
|
220 (67.1)
|
20 (6.1)
|
0.015 (0.51)
|
Deep Briggs
|
|
280 (85.4)
|
310 (94.5)
|
30 (9.1)
|
0.012 (0.41)
|
Deep Briggs
|
|
355 (108.2)
|
375 (114.3)
|
20 (6.1)
|
0.020 (0.69)
|
Deep Briggs
|
|
395 (120.4)
|
455 (138.7)
|
60 (18.3)
|
0.041 (1.42)
|
Deep Briggs
|
including
|
400 (122.0)
|
420 (128.1)
|
20 (6.1)
|
0.097 (3.32)
|
|
|
515 (157.0)
|
610 (186.0)
|
95 (29.0)
|
0.014 (0.50)
|
Deep Briggs
|
BMD11-064 (Azimuth 0, Angle -90)
|
|
|
|
|
45 (13.7)
|
65 (19.8)
|
20 (6.1)
|
0.018 (0.62)
|
Main Briggs
|
|
85 (25.9)
|
190 (57.9)
|
105 (32.0)
|
0.021 (0.71)
|
Deep Briggs
|
including
|
160 (48.8)
|
180 (54.9)
|
20 (6.1)
|
0.063 (2.15)
|
|
|
290 (88.4)
|
355 (108.2)
|
65 (19.8)
|
0.010 (0.33)
|
Deep Briggs
|
|
450 (137.2)
|
550 (167.7)
|
100 (30.5)
|
0.058 (1.97)
|
Deep Briggs
|
including
|
480 (146.3)
|
525 (160.1)
|
45 (13.7)
|
0.094 (3.23)
|
|
BMD11-066 (Azimuth
270�, Angle -55�)
|
|
0 (0)
|
40 (12.2)
|
40 (12.2)
|
0.028 (0.95)
|
Main Briggs
|
|
65 (19.8)
|
140 (42.7)
|
75 (22.9)
|
0.037 (1.26)
|
Main/Deep Briggs
|
including
|
105 (32.0)
|
125 (38.1)
|
20 (6.1)
|
0.105 (3.59)
|
|
|
260 (79.3)
|
310 (94.5)
|
50 (15.2)
|
0.016 (0.55)
|
Deep Briggs
|
|
520 (158.5)
|
765 (233.2)
|
245 (74.7)
|
0.024 (0.82)
|
Deep Briggs
|
including
|
740 (225.6)
|
760 (231.7)
|
20 (6.1)
|
0.098 (3.35)
|
|
|
815 (248.5)
|
835 (254.6)
|
20 (6.1)
|
0.048 (1.65)
|
Deep Briggs
|
BMD11-068 (Azimuth
090�, Angle -55�)
|
|
50 (15.2)
|
90 (27.4)
|
40 (12.2)
|
0.009 (0.32)
|
East Wall
|
|
140 (42.7)
|
155 (47.3)
|
15 (4.6)
|
0.023 (0.80)
|
East Wall
|
|
215 (65.5)
|
235 (71.6)
|
20 (6.1)
|
0.078 (2.67)
|
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 Briggs. 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 Briggs, 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 2010
Form 20-F dated March 23, 2011.
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
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