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BRIGGS Project
BRIGGS
Country USA 
Province California
Close to Torna
Status PRODUCTION 
Surface 12 km² / 2,849 acres
Latitude / Longitude 35 N 56 / 117 W 11
Legends
Valorisation
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Produces Gold -
Develops
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Risk and valuation analysis of the BRIGGS Project
Status Risk : Production
Country Risk : Very Low
Resource Risk : 49.00%
In situ value
1,307,197,001 $
    Link to technical report
Title(s) of the BRIGGS Project
Atna Resources Ltd
Owner: 100%
Company ProfileAll ProjectsCompany websiteCompany project page
TitleCompany ProfileAll ProjectsCompany websiteCompany project page
Atna Resource became the owner of the Briggs mine after its merger with Canyon Resources in November 2007.
Location of the BRIGGS Project
The Briggs gold deposit is located on the western flank of the Panamint Range, Inyo County, California, approximately 50 miles northeast of Ridgecrest.
 
History of the BRIGGS Project
No historical information was found on CR Briggs Mine (seven miles south of Ballarat) until the 1930s when the United States Government funded the first modern exploration program on the property. The property was explored by numerous companies from 1972 until it was placed into production by Canyon in 1996.
 
Geology of the BRIGGS Project
The Briggs gold deposit is hosted by Precambrian quartz and amphibolite gneisses that have been severely deformed by faults of Tertiary age.
 
Reserves and resources of the BRIGGS Project
TonnageGradeReserves and resources
GoldGold
g/toz
 Proven4,794,0000.65 100 185
 Probable4,853,0000.62 96 737
 Proven and Probable9,647,0000.63 196 922
 Measured10,326,0000.72 239 032
 Indicated20,331,0000.59 385 658
 Mesured and Indicated30,657,0000.63 624 689
 Inferred15,183,0000.53 258 717
 Total 55 487 000 1 080 328
Definitions
Reserves and resources of the BRIGGS Project
MetalTotalReservesResourcesUnitIn situ value
ProvenProbableProven and ProbableMeasuredIndicatedMesured and IndicatedInferred
 Gold 1 080 328 100 185 96 737 196 922 239 032 385 658 624 689 258 717oz1 306 916 116 US$
Production history
Metal20102009
GOLD (oz)25,10011,198
Production Objectives
Metal201420152016201720182019
GOLD (oz)40,00040,00040,00040,00040,00040,000
Reserves and Resources
3/3/2011(Atna Resources)Reports Updated Gold Reserves at Briggs and Reward Mines
Exploration and drilling
7/2/2013(Atna Resources)Briggs Mine Reports Near Record Gold Ounces Mined
10/13/2011(Atna Resources)Completes Briggs Drilling with Strong Gold Intercepts
9/13/2011(Atna Resources)North Main Zone Expanding at Atna's Briggs Mine
3/1/2011(Atna Resources)Reports Initial Drill Results at Briggs Mine
1/30/2011(Atna Resources)Commences Briggs Mine Exploration
1/25/2011(Atna Resources)Reports Increased Gold Production and Lower Costs at Briggs ...
10/8/2010(Atna Resources)Reports Strong Production at Briggs Mine
2/26/2010(Atna Resources)Reaches Commercial Production Levels at the Briggs Mine
5/13/2009(Atna Resources)Makes First Gold Pour at Briggs Mine
2/27/2009(Atna Resources)Confirms New Gold Zone at Briggs Mine
1/30/2009(Atna Resources)Commences Mining Gold Ore at Briggs
12/5/2007(Canyon Res.)Drilling At Its Briggs Area Projects
Discoveries and Drilling Results
1/19/2012(Atna Resources)Increases Briggs Gold Resource and Replaces Mined Ounces
5/25/2011(Atna Resources)Drills 100 feet (30.5 m) grading 0.058 oz/ton gold (1.97 g/t...
5/2/2011(Atna Resources)Expands New Reserve Area
4/7/2011(Atna Resources)Announces Expansion of Deep Briggs Zone
3/23/2011(Atna Resources)Reports Additional Positive Drill Results at Briggs Mine
2/23/2010(Atna Resources)Updates Reserve Estimates for Briggs and Reward
8/12/2009(Atna Resources)Increases Gold Resources at Briggs Mine
6/8/2009(Atna Resources)Expands Mineralization at Briggs Mine
2/20/2009(Atna Resources)Reports Reserve Increase and Updated Mine Plan for the Brigg...
4/16/2008(Atna Resources)Drilling Extends Gold Mineralization At Briggs Mine
2/28/2008(Canyon Res.)Reports Positive Cecil R Drilling
2/6/2008(Canyon Res.)Updates Underground Mine Design Study For Its Briggs Mine
Location
Data last updated on : 3/5/2011
Disclaimer
All information on this page comes from internal and external sources deemed reliable. This information might not be up to date, so please perform due diligence before making any conclusion or making any action. Do contact us should any information be missing or incorrect.
Cautionary Note to US Investors concerning estimates of Measured and Indicated Mineral Resources