Dome Mountain Mine

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Mine TypeUnderground
  • Gold
  • Silver
Mining Method
  • Shrinkage stoping
  • Mechanized Cut & Fill
  • Longhole stoping
Backfill type ... Lock
Mine Life... Lock
SnapshotThe Dome Mountain property includes the past producing mine.

December 13, 2023 Blue Lagoon Resources Inc. is pleased to provide an update on ongoing mine permitting and First Nation engagement on its Dome Mountain Gold Project.

After meeting various requirements, an initial ministry screening process was completed in July 2023 and the application was resubmitted for review shortly thereafter. Since then, two rounds of comments have been completed by the Ministry of Energy, Mines and Low Carbon Innovation (EMLI), the Ministry of Environment and Climate Change Strategy (ENV), and the Lake Babine Nation (LBN) and the Company and its technical consultants have responded to, and have completed, two rounds of responses and expect to resubmit the updated application on or before January 6, 2024 for further review and acceptance.


Blue Lagoon Resources Inc. 100 % Indirect
Blue Lagoon Resources owns 100% interest in the following mineral properties of the Dome Mountain Mine Group:

- Dome Mountain Project;

- Freegold Property;

- McKendrick Property;

- Hilo Property; and

- Federal Creek Property.

As at March 31, 2023 and 2022, the Blue Lagoon Resources held a 100% ownership interest in Gavin Mines.



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Deposit type

  • Vein / narrow vein
  • Orogenic
  • Mesothermal


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 mineralized zone in the vein has an average horizontal thickness of 3.2 metres, ranging from less than a meter to 8.0 metres.

- Boulder Footwall Vein: This zone is sub-parallel to the Boulder Main Vein and is located at the east end of the Boulder Vein System. It has been defined by drilling over a strike length of 550 metres from 653,300 UTME to 653,850 UTME and over a down-dip extent of approximately 200 metres. The zone has an average horizontal width of 1.9 metres, ranging from less than a meter to 15.4 metres. The zone is open down-plunge to the east and down-dip. Minor past-production came from this zone.

- Boulder West Hangingwall Vein: This vein is also sub-parallel to the Boulder Main Vein. It is a somewhat discontinuous vein with an overall strike length of 100 metres located between 652,960 UTME and 653,060 UTME and a defined down-dip extent of approximately 100 metres. It has an average horizontal width of about 2.4 metres, ranging from 1.8 to 3.8 metres.

x Boulder East Hangingwall Vein: This is a thin and somewhat discontinuous vein that occurs over a strike length of about 320 metres at the east end of and sub-parallel to the Boulder Main Vein.

In addition to the past producing Boulder Vein System, gold mineralization at the Dome Mountain Project is present at twelve separate locations: Free Gold, Forks, 9800, Ptarmigan, Elk, Eagle, Gem, Raven, Hawk, Chance, Hoopes, Jane, Cabin, and Pioneer. The Free Gold and Forks zones are classified as pastproducers by the B.C. Government Minefile database while the others are listed as either prospects or showings. The Cabin Vein is considered to be the westward extension of the Boulder Vein.

The veins occur in a roughly northwest-southeast 12-kilometer trend from southeast of Dome Mountain to Mt. McKendrick. This trend may reflect the presence of a deep-seated structure. A modest amount of diamond drilling has been conducted on the various veins but to date no minerals resources have been defined.



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Mining Methods


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Crushers and Mills


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Gold oz 85,231
Silver oz 260,851
All production numbers are expressed as payable metal.

Operational metrics

Daily ore mining rate  ....  Subscribe
Waste tonnes, LOM  ....  Subscribe
Ore tonnes mined, LOM  ....  Subscribe
* According to 2020 study.

Production Costs

Cash costs (sold) Gold USD  ....  Subscribe
Total cash costs (sold) Gold USD  ....  Subscribe
Assumed price Silver USD  ....  Subscribe
Assumed price Gold USD  ....  Subscribe
* According to 2020 study / presentation.

Operating Costs

UG mining costs ($/t milled) CAD 123 *  
Processing costs ($/t milled) CAD  ....  Subscribe
G&A ($/t milled) CAD  ....  Subscribe
Total operating costs ($/t milled) CAD  ....  Subscribe
* According to 2020 study.

Project Costs

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

Heavy Mobile Equipment

Fleet data has not been reported.


Mine Management

Job TitleNameEmailProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Dec 15, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 13, 2020
....................... Subscription required ....................... Subscription required ........... Subscription required Subscription required Dec 13, 2023

Aerial view:


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