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Canada
Bull River Mine

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 Location:
21 km W from Fernie, British Columbia, Canada

  Project Contacts:
2520 – 16 St NW
Calgary
Alberta, Canada
T2M 3R2
Phone  ...  Subscription required
Fax403-282-2876
EmailEmail
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News

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Overview

StageRestarting
Mine TypeUnderground
Commodities
  • Copper
  • Gold
  • Silver
Mining Method
  • Truck & Shovel / Loader
Mine Life6.5 years (as of Jan 1, 2021)
September 2021 - Over $100 million of usable infrastructure in place. 700 tpd mill. Underground workings are accessible to 350 metres below surface.

Permitting underway – Major Mines Permit – (6-8 months).


Owners

Source: p. 8
CompanyInterestOwnership
Canadian Critical Minerals Inc. 100 % Indirect

Contractors

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Deposit Type

  • Breccia pipe / Stockwork
  • Vein / narrow vein


Summary:

The Bul River deposit has been described as a Churchill-type vein copper-silver deposit (Lefebure, 1996). The deposit type displays relatively low tonnage characteristics (typically range from 10 kt to 1 Mt) but high-grade (typically range from 1% to 4% Copper). Frequently occurring in Proterozoic- age extensional sedimentary basins, Churchill-type deposits are associated with rifting, can comprise single vein to complicated vein systems that vary from centimetres to tens of metres in width, and can extend hundreds of metres along strike and down dip. Commonly hosted in clastic meta-sediments, veins and vein systems are often spatially associated with mafic dykes and sills. The veins are generally associated with major faults related to a crustal extension that controls the ascent of hydrothermal fluids to favourable sites for metal deposition. Fluids are believed to be derived from those mafic intrusives that are associated with the vein systems.

Local Geology
The GBRM deposit is hosted within poorly exposed graded turbidite beds of the middle Aldridge Formation of the Middle Proterozoic Purcell Supergroup. Interbedded quartzites, siltstones, and argillites make up a turbidite sequence whose bedding plane strikes approximately east-west and dips 20° to 30° to the north (Baldys, 2001). The host rocks of the deposit are a northward pinching series of anticlines and synclines (de Souza, 2000).

The quartzite unit is described by Baldys, 2001 as, in fa ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Braveheart plans to advance the BRM Project in a phased approach. During Phase 1, the existing ore stockpile (stored within the waste rock dump) will be processed through the mill, and filtered tailings will be stored on the surface in a new Tailings Storage Facility (TSF) using filtered tailings or dry stack tailings as a Best Available Technology.

Phase 2, which will involve a subsequent permit application process, includes the resumption of underground mining operations, with a planned mining rate of 700 tonnes per day for an initially projected mine life of 6.5 years. To re-start mine operations, BRMC will require authorization to increase the mining production rate from the currently permitted 205 tonnes per day and place tailings in the TSF.

No underground mining will occur during Phase 1. The underground will continue to be maintained in a dewatered condition. Exploration drilling may be conducted from the underground to define the downdip extension of the current resource.

An underground mine plan was filed with the MEMPR in 2007, and subsequent underground work was completed following the plan's parameters. Work underground continued until 2009, when operations were suspended due to a lack of funds. BRM personnel have reported that excavation models of the underground workings are current to the suspension of mining in 2009. Approximately 22,000 metres of underground development have occurred, including exposure of the minerali ........


Crushing and Grinding
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Processing

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Summary:

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Operational Metrics:

Metrics2021
Daily milling capacity  ......  Subscription required
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Reserves at September 1, 2021:

CategoryTonnage CommodityGradeContained Metal
Indicated 1.51 Mt Copper Equivalent 2.263 % 87,552,178 lbs
Inferred 0.34 Mt Copper Equivalent 1.86 % 13,942,033 lbs

Operating Costs:

Units2021
Processing costs ($/t milled) CAD 19.3 *
G&A ($/t milled) CAD  ......  Subscription required
* According to 2021 study.
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2021 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Pre-Production capital costs $M CAD  ......  Subscription required
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Heavy Mobile Equipment:

Mine Management:

Job TitleNamePhoneEmailProfileRef. Date
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Oct 18, 2021
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Staff:

Total WorkforceYear
Subscription required 2021

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2019
................................... Subscription required 2019
Technical Report 2018
Other 2013
Preliminary Economic Assessment 2013
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