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Canada
Dome Mountain Project

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 Location:
35 km E from Smithers, British Columbia, Canada

  Project Contacts:
1200 – 750 West Pender St.
Vancouver
British Columbia, Canada
V6C 2T8
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News

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Overview

StageConstruction
Mine TypeUnderground
Commodities
  • Gold
  • Silver
Mining Method
  • Mechanized Cut & Fill
  • Shrinkage stoping
  • Longhole stoping
  • Backfill
Mine Life12 years (as of Jan 1, 2020)
Infrastructure construction in place to date includes:
• New Mine access road;
• Electro Coagulation Water Treatment Plant;
• Mechanics shop;
• No acid rock drainage;
• Sediment Control Pond & System;
• Mine Dry and Office Building;
• Underground Development.
Latest NewsBlue Lagoon Signs Long Term Extention With Toll Mill Partner Nicola Mining     May 18, 2023


Owners

Source: p. 8,9
CompanyInterestOwnership
Blue Lagoon Resources, Inc. 100 % Indirect
Gavin Mines Inc was incorporated as a wholly owned Metal Mountain Resources subsidiary with the intent of being the operating company for the Dome Mountain Mine.

In March 2020, Blue Lagoon, through its acquisition of Metal Mountain Resources, acquired a 50.84% interest in Gavin Mines. Concurrently with the transaction, Blue Lagoon acquired an additional 27.44 percent of Gavin Mines, bringing its overall ownership position to 78.28 percent. Subsequently, in July 2021, Blue Lagoon acquired the remaining shares of Gavin Mines, bringing its total ownership to 100%.

Contractors

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Deposit Type

  • Vein / narrow vein
  • Orogenic
  • Carbonate hosted


Summary:

The mineral deposits at Dome Mountain are structure-controlled orogenic (mesothermal) quartz-carbonate-sulphide veins with associated gold and silver mineralization. Controlling structures are east-west and northwest southeast trending brittle fault zones that dip moderately to steeply south and southwest. The host rocks are Lower to Middle Jurassic subaerial volcanic flows, pyroclastic, and related volcanoclastic rocks.

The most significant gold mineralization on the Dome Mountain Project is contained within five zones of the past-producing Boulder Vein System (listed in order of importance):

- Boulder Main Vein: This zone has a strike ranging from 090° to 100° and dips ranging from 45° to 70° south. The vein has been defined over a strike length of 440 metres from section 652,800 UTME to 653,240 UTME and a down-dip extent of more than 300 metres starting at the surface. The mineralized zone within the vein has a shallow easterly plunge with an average horizontal width of 2.4 metres, ranging from less than a meter to 21.2 metres. The majority of the 43,900 tonnes of past production came from this zone.

- Argillite Vein: The Argillite Vein is a splay off the Boulder Main Vein. It strikes at 120° and dips to the southwest at angles ranging from 35° to 50° and it appears to flatten along strike to the southeast. The zone is somewhat discontinuous over the defined strike length of 240 metres and a maximum down-dip extent of 90 metres. The miner ........


Mining Methods

  • Mechanized Cut & Fill
  • Shrinkage stoping
  • Longhole stoping
  • Backfill


Summary:

The Dome Mountain deposit is a system of structure-controlled orogenic (mesothermal) quartz-carbonate-sulphide veins with associated gold and silver mineralization. The mining method, mechanized ramp cut and fill, is contemplated being utilized at the Dome Mountain Mine to maximize recovery of the mineral resource. The mechanized cut and fill method optimizes mineral resource extraction since this method allows for the ability to follow irregular mineralized zones quite precisely and allow greater selectivity in mining and results in a higher-grade mineralized product. Recovery for this method was planned at 95% and dilution was estimated at less than 10%. Other mining methods that could be proposed in the future may include narrow vein long hole stopes in areas where the mineralized zone is dipping at more than 45 degrees, captive slusher stopes, shrinkage stopes, or resue mining to minimize dilution where the ore zone is too narrow.

Unconsolidated rock backfill is planned to be used in all mechanized ramp cut and fill stopes after mining is completed to stabilize the ground and to provide a working platform for the next cut and fill lift (stope). This backfill is the development waste from the Dome Mountain Mine. This will reduce the overall closure costs for the operation. It is planned to carry out geotechnical studies in the future to determine if cemented rock fill (CRF) is an option for backfill. This is also depended on future permitting requirements.


Crushing and Grinding
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Processing

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Summary:

- subscription is required.


Projected Production:

CommodityUnitsLOM
Gold oz 85,231
Silver oz  ......  Subscription required
All production numbers are expressed as payable metal.

Operational Metrics:

Metrics
Daily ore mining rate  ......  Subscription required
Waste tonnes, LOM  ......  Subscription required
Ore tonnes mined, LOM  ......  Subscription required
Mining scale, tpd  ......  Subscription required
* According to 2020 study.
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Reserves at October 15, 2021:
Mineral Resource Statement at 3.5 g/t cut-off.

CategoryTonnage CommodityGradeContained Metal
Measured 136,000 t Gold 10.32 g/t 45,000 oz
Measured 136,000 t Silver 57.31 g/t 250,000 oz
Indicated 662,000 t Gold 8.15 g/t 173,000 oz
Indicated 662,000 t Silver 41.19 g/t 876,000 oz
Inferred 85,000 t Gold 6.02 g/t 16,000 oz
Inferred 85,000 t Silver 26.13 g/t 71,000 oz

Commodity Production Costs:

CommodityUnitsAverage
Cash costs (sold) Gold USD  ......  Subscription required&nbs
Total cash costs (sold) Gold USD  ......  Subscription required&nbs
Assumed price Silver USD  ......  Subscription required&nbs
Assumed price Gold USD  ......  Subscription required&nbs
* According to 2020 study / presentation.

Operating Costs:

Units2020
UG mining costs ($/t milled) CAD 123 *
Processing costs ($/t milled) CAD  ......  Subscription required
G&A ($/t milled) CAD  ......  Subscription required
Total operating costs ($/t milled) CAD  ......  Subscription required
* According to 2020 study.
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2020 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Pre-Production capital costs $M CAD  ......  Subscription required
Closure costs $M CAD  ......  Subscription required
UG OpEx $M CAD  ......  Subscription required
Processing OpEx $M CAD 26.4
Transportation (haulage) costs $M CAD 38.1
G&A costs $M CAD 16.2
Total OpEx $M CAD  ......  Subscription required
Total Taxes $M CAD  ......  Subscription required
Royalty payments $M CAD  ......  Subscription required
Gross revenue (LOM) $M CAD  ......  Subscription required
Pre-tax Cash Flow (LOM) $M CAD  ......  Subscription required
After-tax Cash Flow (LOM) $M CAD  ......  Subscription required
Pre-tax NPV @ 5% $M CAD  ......  Subscription required
After-tax NPV @ 5% $M CAD  ......  Subscription required
After-tax NPV @ 10% $M CAD  ......  Subscription required
Pre-tax IRR, %  ......  Subscription required
After-tax IRR, %  ......  Subscription required
After-tax payback period, years  ......  Subscription required
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Heavy Mobile Equipment:

Mine Management:

Job TitleNamePhoneProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 11, 2022
....................... Subscription required ....................... Subscription required Subscription required Jul 13, 2020
....................... Subscription required ....................... Subscription required Subscription required Jul 13, 2020
....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Oct 11, 2022
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Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
Technical Report 2010
Subscription required - Subscription is required.

News:

NewsDate
Blue Lagoon Signs Long Term Extention With Toll Mill Partner Nicola Mining May 18, 2023
Blue Lagoon Encounters Additional Significant Intersections from Drilling Along Strike East of the Boulder Vein Resource May 2, 2023

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