Mining Intelligence and News
United States

Independence Project

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Mine TypeOpen Pit
  • Gold
  • Silver
Mining Method
  • Truck & Shovel / Loader
Mine Life... Lock


Americas Gold Exploration Inc. 49 % Indirect
Nexus Uranium Corp. (operator) 51 % Indirect
The property is owned under a joint-venture agreement between Americas Gold Exploration Inc. (AGEI) and Golden Independence Mining Corp. (GIMC). Under the terms of the JV, GIMC has an initial 51% interest in the Independence project while AGEI holds an initial 49% interest. GIMC is the operator and is entitled to a 10% operator fee until a production decision is made on the Independence project.



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Deposit type

  • Epithermal
  • Skarn
  • Porphyry


Three distinct deposit types are present at the Independence Property, a shallow near surface epithermal system, a deeper high gold rich skarn system and an intrusive hosted stock work gold-copper porphyry system.

Surface “Chert Hosted” Mineralization
The mineralized body broadly strikes N-S and dips 55° – 65° to the west overall, with a very shallow 3 to 5° southerly rake. Along the main mineralized zone, high grade ore chutes are developed at intersections with NW to E-NE trending cross faults and favorable lithology. These intersections historically have yielded ore grades to 1 opt gold and 39.4 opt silver with local bonanza grade to 63 ounce of gold per ton and 19,800 ounces of silver per ton. Several of these types of ore chutes were discovered by past operators and mined from the underground workings present on the property. One such rich ore chute was the Bonner-Cole, mined from 1954 to 1958 that produced 2,796 ounces of gold and 110,294 ounces of silver at average grades of 1.0 opt Au and 39.4 opt Ag, respectively.

Gold and silver mineralization in the Independence Shallow, chert hosted mineralization corresponds largely with elevated levels of the pathfinder elements arsenic, antimony and locally bismuth. Elevated levels of certain Rare Earth Elements (REE’s) is indicated in the foot wall of the deposit and is of uncertain correlation pending additional work and better understanding of the relationship with mineralization if any. The mineralization consists of soft friable gossanous oxides and colloidal clays derived from extensive primary sulfide stock works and replacements of the brecciated chert units. These primary sulfide deposits have subsequently been deeply and thoroughly oxidized to form the present day deposit.

Deep Skarn Mineralization
The skarn mineralization consisting of various dark and light calc-silicate mineral assemblages is well developed and exhibits extensive retrograde skarn alteration throughout.

Gold mineralization is wide spread within the skarn altered zone and is controlled primarily by the apparent intensity of the late stage fracturing event. Significant gold mineralization in the skarn has been encountered in drill holes over an area more than 1,400 feet (425 meters) wide and 3,400 feet (1,035 meters) long which occurs as a sub horizontal blanket which is locally modified by post mineral faulting. The majority of the skarn hosted target is roughly 2,800 to 2,900 feet (850 to 880 meters) beneath the surface, except along the eastern margin of the property where apparent faulting displaces the receptive horizon to within roughly 2,600 feet (790 meters) of the surface.

The highest grade gold mineralization occurs in receptive sand and carbonate filled channels cut in the fluvial Battle Conglomerate by the constantly meandering streams which deposited the Battle Conglomerate.

The relative age of faulting and mineralization are uncertain at this time, but it is thought that movement is likely pre-mineral and the fault structure may in fact be a mineral conduit and therefore mineralized both above and below the Antler Sequence. This is evidenced by a relatively greater thickness and grade of mineralization in drill holes in down dropped blocks relative to the up thrown blocks.

Gold-Copper Porphyry Mineralization
The Independence Stock and a large related north dipping sill represent a potential significant goldcopper porphyry target. Historic drill hole results in Battle Mountain Gold drill hole number BMG 3975 returned 27 meters (90 feet) with an average grade of 0.55 g/t (0.016 opt) Au. Exposures in the adjacent Sunshine Pit, mined by Battle Mountain Gold Corp. in 1996 confirm the presence of goldcopper porphyry style mineralization associated with strong potassic alteration in and along the northern margin of the Independence Stock.



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Mining Methods


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Crushers and Mills


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CommodityProductUnitsAvg. AnnualLOM
Gold Metal in doré oz 32,050195,443
Silver Metal in doré oz 210,1351,281,420
Gold Equivalent Payable metal koz 213
Gold Equivalent Metal in doré koz 35214

Operational metrics

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Daily processing capacity  ....  Subscribe
Annual ore mining rate  ....  Subscribe
Annual processing capacity  ....  Subscribe
Stripping / waste ratio  ....  Subscribe
Waste tonnes, LOM  ....  Subscribe
Ore tonnes mined, LOM  ....  Subscribe
Total tonnes mined, LOM  ....  Subscribe
Tonnes processed, LOM  ....  Subscribe
* According to 2022 study.

Production Costs

Total cash costs Gold USD  ....  Subscribe
All-in sustaining costs (AISC) Gold USD  ....  Subscribe
Assumed price Silver USD  ....  Subscribe
Assumed price Gold USD  ....  Subscribe
* According to 2022 study / presentation.
** Net of By-Product.

Operating Costs

OP mining costs ($/t milled) USD 5.66 *  
Processing costs ($/t milled) USD  ....  Subscribe
G&A ($/t milled) USD  ....  Subscribe
Total operating costs ($/t milled) USD  ....  Subscribe
* According to 2022 study.

Project Costs

MetricsUnitsLOM Total
Pre-Production capital costs $M USD  ......  Subscribe
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Sustaining CapEx $M USD  ......  Subscribe
Closure costs $M USD  ......  Subscribe
Total CapEx $M USD  ......  Subscribe
OP OpEx $M USD  ......  Subscribe
Processing OpEx $M USD 88.8
G&A costs $M USD 23.2
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Total Taxes $M USD  ......  Subscribe
Net revenue (LOM) $M USD  ......  Subscribe
Pre-tax Cash Flow (LOM) $M USD  ......  Subscribe
After-tax Cash Flow (LOM) $M USD  ......  Subscribe
Pre-tax NPV @ 5% $M USD  ......  Subscribe
After-tax NPV @ 5% $M USD  ......  Subscribe
After-tax NPV @ 10% $M USD  ......  Subscribe
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After-tax IRR, %  ......  Subscribe
After-tax payback period, years  ......  Subscribe

Required Heavy Mobile Equipment


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Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Dec 24, 2023
....................... Subscription required ....................... Subscription required Subscription required Jan 24, 2022

Total WorkforceYear
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Aerial view:


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