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Canada

True North Complex

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Overview

Mine TypeTailings
StatusTemporary Suspension
Commodities
  • Gold
  • Silver
Mining Method
  • Truck & Shovel / Loader
Production Start... Lock
SnapshotThe True North Complex includes processing facility, tailings area, underground mine(under temporary closure), and the True North Gold Deposit.

Underground mining has been suspended and access to the True North mine has been temporarily closed. Up until the end of 2022, the 1911 Gold processed tailings through the mill. The Company is actively exploring to discover additional resources to provide feed for the mill.

During 2023, the Company completed the clean-out of the mill that had started in December 2022.

In 2024, 1911 Gold is continuing to work towards the goal of restarting the True North gold mine, with current plans for this to occur in late 2026.

On July 18, 2023, the 1911 Gold entered into a letter agreement with Grid Metals Corp. to lease the True North mill complex for future processing of spodumene pegmatite from Grid’s Donner Lake Lithium Project. With this agreement 1911 Gold will maintain flexibility to phase-in gold ore from the True North mine.
Related Asset

Owners

SourceSource
CompanyInterestOwnership
1911 Gold Corp. (operator) 100 % Indirect
1911 Gold Corporation owns and operates the Rice Lake property which holds the True North gold mine and mill.

Contractors

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Deposit type

  • Tailings
  • Mesothermal
  • Vein / narrow vein
  • Orogenic

Summary:

The True North Gold Deposit is a classical Archean orogenic gold deposit, consisting of quartz-carbonate vein systems hosted by brittle-ductile shear zones and faults in volcanic and sedimentary rocks (greenstones). The deposit is hosted by a north-younging, moderately inclined, succession of volcanic and sedimentary rocks, belonging to the 2.73–2.72 Ga Gem assemblage. At Rice Lake, this assemblage includes volcanic sandstone and conglomerate, tholeiitic basalt flows and gabbro sills and dacitic volcaniclastic rocks, intruded by various felsic porphyry dikes.

Tailings Management Area
The Tailings Management Area (TMA) is located approximately 1-mile (1.6 km) north of the process plant in an area naturally defined by bedrock ridges around the perimeter of a previously flat boggy area. The original ground surface of the bog was near elevation 889 feet above sea level (asl) (271 m asl) (geodetic) with bedrock ridges on the south and west sides up to 920 feet above sea level (asl) (280 m asl) and bounded to the north by bedrock up to elevation 985 feet asl (300 m asl).

The TMA currently consists of eight dykes with a number of the embankments separated by bedrock outcroppings such that they follow an A/B nomenclature. The embankments have been designed and constructed in various stages and phases from 1997 onwards to the most recent raises and improvements completed from 2012 to 2014. The current configuration of the TMA consists of a tailings pond and polishing pond, separated by dyke 7. The west half (approx.) of the tailings pond has reached its capacity, with tailings placed up to the crest of dykes 1, 2, 8, and a portion of dyke 3, while the east half of the tailings pond contains tailings submerged beneath water ranging in depth from less than 3 feet (1m) to several feet (meters). No spillway or low-level outlet structures are present in the TMA. It is understood that the TMA has been designed to safely retain water from the mill discharge, runoff, and storm events.

In order to increase the capacity to retain tailings, the former Operator began development of a new area termed the East Tailings Management Area (ETMA). The ETMA is located directly east of the TMA and currently consists of dyke 9 along its south perimeter, with dyke 6 of the TMA forming the containment along the west side. The natural contours to the north and east provide containment of the remainder of the ETMA.

Dyke 9 has an overall length of nearly 5,000 feet (1,500 m) and at its current constructed elevation, has a height of 10 feet to 13 feet (3m to 4 m). No spillway or low-level outlet structures are present in the ETMA. It is understood that the TMA has been designed to safely retain water from the process plant discharge, runoff, and storm events.

Reserves

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Mining Methods

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Comminution

Crushers and Mills

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Processing

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Production

During the year ended December 31, 2023, the Company completed the clean-out of the mill that had started in December 2022, recovering 478 ounces of gold.
CommodityUnits20232022202120202019201820172016
Gold oz  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe5,6537,29927,87710,187
Silver oz 3,174853
Gold Equivalent oz 27,91910,199
All production numbers are expressed as metal in doré.

Operational metrics

Metrics2022202120202019201820172016
Daily processing capacity  ....  Subscribe  ....  Subscribe  ....  Subscribe2,500 tons
Tonnes processed  ....  Subscribe  ....  Subscribe  ....  Subscribe222,134 tons249,817 tons297,826 tons95,710 tons
Daily processing rate  ....  Subscribe  ....  Subscribe  ....  Subscribe262 tons
Ore tonnes mined  ....  Subscribe  ....  Subscribe  ....  Subscribe19,301 tons309,343 tons51,768 tons

Production Costs

Commodity202220212020201920182017
Cash costs (sold) Gold Equivalent 1,504 / oz  USD
Total cash costs (sold) Gold  ....  Subscribe  ....  Subscribe  ....  Subscribe 1,880 / oz  CAD 2,603 / oz  CAD
All-in sustaining costs (sold) Gold  ....  Subscribe  ....  Subscribe  ....  Subscribe 2,168 / oz  CAD 2,762 / oz  CAD

Operating Costs

Currency2016
UG mining costs ($/t mined) USD  ....  Subscribe

Financials

Units2023202220212020201920182017
Capital expenditures M USD 14.5  
Revenue M  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 12.3  CAD 18  CAD 32.6  USD
Operating Income M  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe -8.6  CAD -17.3  CAD -17  USD
Pre-tax Income M  ....  Subscribe  ....  Subscribe  ....  Subscribe -7.8  CAD -33.1  CAD
After-tax Income M  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe

Heavy Mobile Equipment

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Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Aug 7, 2024
....................... Subscription required ....................... Subscription required Subscription required Aug 7, 2024
....................... Subscription required ....................... Subscription required Subscription required Aug 7, 2024

EmployeesContractorsTotal WorkforceYear
...... Subscription required ...... Subscription required ...... Subscription required 2016

Aerial view:

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