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United States
Florida Canyon Mine

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 Location:
61 km SW from Winnemucca, Nevada, United States

  Address:
600 Humboldt Canyon Road
Imlay
Nevada, United States
89418
Phone  ...  Subscription required
Fax775-538-7324
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  • Overview
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  • Costs & Financials
  • Fleet
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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Gold
  • Silver
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life2031


Owners

Source: p. 11
CompanyInterestOwnership
Argonaut Gold Inc. 100 % Indirect
Argonaut Gold Inc. owns 100% of the Florida Canyon Mine as its foreign operations in the USA.

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Epithermal
  • Vein / narrow vein
  • Sandstone hosted


Summary:

Three types of mineralization are present at Florida Canyon. The primary type is disseminated gold mineralization within siltstone and silty sandstone. In addition, gold mineralization occurs along brecciated contacts and karsted areas of the Natchez Pass limestone. The third type of gold mineralization occurs as epithermal hot springs type vein mineralization.

Florida Canyon was a large tonnage low grade Neogene aged epithermal gold system adjacent to an active geothermal system. The close spatial association with the geothermal system has led to a general belief that Florida Canyon is a hot springs-type epithermal gold deposit. Hydrothermal alteration assemblages and the mineralogy of both oxidized and unoxidized gold mineralization at Florida Canyon have been characterized as having formed in a low-sulfidation epithermal environment.

Mineralization
The location and geometry of the mineralized bodies at Florida Canyon are a result of structure; the presence of favorable silty argillite, quartzite, and limestone host rocks; and the position of the host rocks relative to structural conduits. The higher-grade zones of mineralization tend, in general, to follow the high-angle, northeast- and northwest-trending fault and shear zones. The more moderate- or lower-grade zones are controlled by favorable host rocks more distal to feeder structures.

Rock units that are more favorable hosts to mineralization include silty argillite, hornfels cont ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Florida Canyon is a conventional open pit hard rock mining operation. Typical of other mines in Nevada, bench heights are 20 ft and the loading and haulage fleet are 13 to 14 cu yd front loaders matched to 100-ton rigid frame haul trucks. Most of the loading and hauling equipment have been leased from Caterpillar and include Maintenance and Repair contracts on the leased units (MARC).

The mining plan that defined the Mineral Reserve was developed by the staff of IMC working on site with the team at FCMI. It should be noted that this mine plan and schedule is practical and IMC check calculations confirm it to be economic at the design prices and at current spot prices. However, there is room for optimization and improvement going forward.

A mine production schedule was developed from the phases that would supply 750 tons per month (9,000 ktons/yr) of feed to the crusher. Total loading capacity at the mine is limited to about 70,000 to 75,000 tpd which on an annual basis is 25,550 to 27,375 kton/yr of total mining capacity.

The mine schedule was developed from a set of mine phase or pushback designs. Phase designs are practical expansions of the pit that included all necessary access roads and working room for equipment. FCMI often utilizes pushbacks that are as narrow as 120 to 140 ft. Although not optimal for equipment productivity, many of the current operating conditions at FCMI were retained in the phase designs.

Some of the ph ........


Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Production:

CommodityUnits202220212020201920182017
Gold Equivalent koz  ......  Subscription required ^  ......  Subscription required  ......  Subscription required
Gold oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Silver oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All production numbers are expressed as metal in doré. ^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics20212020201920182017
Total tonnes mined  ......  Subscription required  ......  Subscription required12,620 kt15,484 kt13,282,399 tons
Ore tonnes mined  ......  Subscription required  ......  Subscription required6,662 kt7,115 kt6,988,290 tons
Waste  ......  Subscription required  ......  Subscription required5,958 kt8,369 kt6,294,109 tons
Tonnes milled  ......  Subscription required  ......  Subscription required
Stripping / waste ratio  ......  Subscription required  ......  Subscription required0.89 1.18 0.9
Daily mining rate  ......  Subscription required  ......  Subscription required34,576 t42,422 t
Tonnes processed  ......  Subscription required  ......  Subscription required6,677 t7,547 kt6,410,556 tons
Daily processing rate  ......  Subscription required  ......  Subscription required18,294 t20,676 t
Subscription required - Subscription is required.

Reserves at December 31, 2021:
Cut-off grade for reserves is 0.17 g/t Au.
Cut-off grade for resources is 0.15 g/t Au.

CategoryTonnage CommodityGradeContained Metal
Proven 57.5 Mt Gold 0.43 g/t 790 koz
Probable 10.9 Mt Gold 0.37 g/t 131 koz
Proven & Probable 68.4 Mt Gold 0.42 g/t 921 koz
Measured & Indicated 86.5 Mt Gold 0.42 g/t 1,177 koz
Inferred 5.8 Mt Gold 0.29 g/t 54 koz

Commodity Production Costs:

CommodityUnits20222021202020192018
Cash costs (sold) Gold USD  ......  Subscription required ^†  ......  Subscription required†  ......  Subscription required†  ......  Subscription required† 1,077 / oz†  
All-in sustaining costs (sold) Gold USD  ......  Subscription required ^†  ......  Subscription required† 1,158 / oz†  
^ Guidance / Forecast.
† Net of By-Product.
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Operating Costs:

Units20192018
OP mining costs ($/t mined) USD 2.121.62
Processing costs ($/t milled) USD  ......  Subscription required  ......  Subscription required
Total operating costs ($/t milled) USD  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Financials:

Units2021202020192018
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 2.4  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 37.3  
Operating Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 2.5  
Gross profit M USD  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required



Heavy Mobile Equipment as of June 1, 2020:
HME TypeModelSizeQuantityStatusLeased or
Contractor
Drill 6.75 inch ....................... Subscription required Existing
Loader (FEL) ....................... Subscription required 13 cu. yd ....................... Subscription required Existing
Loader (FEL) ....................... Subscription required 14 cu. yd ....................... Subscription required Existing Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Truck (haul) ....................... Subscription required 100 tons ....................... Subscription required Existing
Truck (haul) ....................... Subscription required 100 tons ....................... Subscription required Existing Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNameEmailProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Apr 10, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 10, 2022
....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Apr 10, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 10, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 10, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 19, 2022
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Staff:

EmployeesYear
Subscription required 2021
Subscription required 2020
Subscription required 2019
Subscription required 2018

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Information Form 2018
Financial Review 2018
Management Discussion & Analysis 2018
Press Release 2018
Quarterly Report 2018
Technical Report 2018
Preliminary Economic Assessment 2017
Preliminary Economic Assessment 2016
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