Kerr-Addison

The Kerr-Addison Project is Cadillac Mines Corporation’s flagship asset and is centred around the historic Kerr-Addison Mine in McGarry Township, Ontario. The project is located along the prolific Cadillac-Larder Lake Break, one of the world’s most productive gold-bearing structures.

Since acquiring the project in 2015, the Company has completed extensive drilling programs, expanded its land position and continued to demonstrate significant exploration and development potential across the property.

3.31M OZ AU 69.2 MT @ 1.5 G/T AU
Indicated Mineral Resource

2.36M OZ AU 55.6 MT @ 1.3 G/T AU
Inferred Mineral Resource

537,906.39M
Drilling to Date by Cadillac Mines Corporation

44.5 KM²
Project Coverage Primarily in McGarry Township

Technical Reports

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Geography Ouput

Geology and Mineralization

Gold mineralization at Kerr-Addison is associated with structurally controlled quartz-carbonate vein systems hosted within altered ultramafic and sedimentary rock units along the Cadillac-Larder Lake Break.

Growth Strategy

Cadillac Mines continues to advance Kerr-Addison through aggressive drilling, resource expansion and evaluation of both open pit and underground development opportunities.

Current exploration activities are focused on expanding known mineralization, testing additional targets along the Cadillac-Larder Lake Break and unlocking the broader district-scale potential across the property.

The Company’s 120,000 metre drill program represents the largest exploration campaign in Company history.

Mineral Reserves and Resources

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Kerr-Addison History

Historically, the Kerr‐Addison Mine is Canada’s fifth largest individual gold mine, and, between 1938 and 1996, the Kerr‐Addison and Chesterville mines, which make up the Kerr-Addison deposit, collectively produced more than 11M oz of gold (Kerr‐Addison: 35.3 Mt grading 9.1 g/t Au; Chesterville: 2.96 Mt grading 3.8 g/t Au) (Smith et al., 1993; AJPerron Gold Corp., 1998). Almost all of the historical production was completed using underground extraction methods.

Historically, the zones of mineralization at Kerr‐Addison and Chesterville were named “ore bodies”, the term used by the historical miners referring to individual segregated mining areas. There were 20 Kerr‐Addison ore bodies and nine Chesterville ore bodies.

As the Property’s history dates back to the early 20^th century, exploration and drilling records are not complete. The historical record, made available to Gold Candle upon acquisition in 2015, includes logs for 6,543 drill holes totalling 415,145 m of drilling data from 1934 to 2012. These records are not a complete capture of historical drilling on the Property. Since the mine shutdown, original hard copy records were relocated several times, and, in the process, some records were lost or damaged. Original records were handwritten and are commonly faded or partially illegible.

To learn more, click the links below!

The Kerr-Addison and Chesterville Mines Historical Timelines are largely based on Sim and Davis (2021), Touchette (2012), and Thomson (1941).

For historical resource estimates, past production history, and historical “ore-body” production for Kerr-Addison and Chesterville mines, click here for Gold Candle’s technical report.

1900s

1910s

1920s

1930s

1940s

1950s

1960s

1980s

1990s

2010s

1906: Reddick Larder Lake Gold Mines Limited (Reddick) discovers gold on the Property.
1907: Sinking of a 27 metre (m) shaft at the east end of the Property (Reddick Shaft or No. 2 shaft).
1908: Construction of a 20-stamp mill (a large mechanical equipment to crush rock – essentially a huge mortar and pestle).
1909: Canada’s first $5 gold coin is minted from gold produced at this Property.

1914: Associated Goldfields Ltd. (Associated Goldfields) acquires the Property.

1920: A 91 m shaft is constructed at the west end of the Property (No. 1 shaft). At this time, significant underground development is carried out on the 175 feet (ft) and 300 ft levels.
1921: Surface drill hole #8 intersects the #10 green‐carbonate zone (termed by historical miners as “ore body”); however, the north cross‐cut on the 300 ft level passes between the 09 and 10 ore bodies, missing significant mineralization by less than 6 m.
1923: Associated Goldfields abandons work, and the mill is dismantled.

1936: Kerr-Addison Gold Mines Ltd. (Kerr-Addison Gold Mines) purchases the claims and drives four adits into the hill at the west end of the Property.
1938: The first gold bar is poured on June 11, 1938.
1939-1940: The mill capacity is increased to 1,090 tonnes per day (tpd). Significant tonnages of “flow ore” at the 100 ft level are discovered in 1940, which subsequently leads to increased mill capacity (1,725 tpd in 1941 and 3,360 tpd in 1948).

1952-1960: The mine operates at a peak production of approximately 4,080 tonnes per day.
1957: The Chesterville Mine Property is amalgamated into the Kerr‐Addison Mine Property.
1958: The Kerr‐Addison No. 3 shaft reached a depth of 1,174 m, and deep drill holes to the 4200 ft level confirmed the downward extension and high-grade (approximately 20 g/t Au) of the #21 flow ore body.
1959: An internal shaft (No. 4 shaft) is constructed 823 m north of the No. 3 shaft to connect the 3850 ft and 6000 ft levels. Rock is transported between these two shafts on the 3850 ft level by a conveyor.

1960: The best year of production is recorded: 1,512,860 tonnes at an average grade of 12.16 g/t, for a total of 591,574 oz.
1963: Exploration on the Property is discontinued, and mining continues as a salvage operation only. This is due to the realization that economic mineralization had pinched out completely by the 4600 ft level, just beyond the reach of the
1960 drill holes.
1967-1970: In 1967, production falls to 970 tpd and, by 1970, production further declines to 760 tpd.

1987: Golden Shield Resources Ltd. (Golden Shield) acquires the Property. An aggressive exploration program is initiated.
1989: Operations cease due to a sharp drop in the price of gold. Golden Shield is forced into bankruptcy. Golden Shield assets are acquired by GSR Mining Corporation (GSR), a subsidiary of Deak Resources Corporation (Deak).

1990-1992: Surface pit and underground mining resume. The Kerr‐Addison and Chesterville underground workings are connected at the 2650 ft level. An effluent plant is installed.
1993: GSR/Deak is bought out by Gwen Resources Ltd. (Gwen Resources). Gwen Resources trucks ore from its Astoria Mine in Granada, Québec and processes it in the Kerr-Addison process plant.
1994: Gwen Resources is renamed AJ Perron Gold Corp. (AJ Perron Gold).
1996-1997: The mine ceases operations amid a legal dispute. In November 1997, the surface rights over the Property are acquired by 12111394 Ontario Ltd.

2010: Armistice Resources Corp. (Armistice Resources) enters into an option agreement to purchase up to 100% of the mining rights on the Kerr‐Addison Mine Property.
2011-2012: Armistice Resources completes 48 diamond drill holes, totalling 17,857 m.
2014: Armistice Resource changes its name to Kerr Mines Inc. (Kerr).
2015: Gold Candle acquires 100% of the mining rights from Kerr, along with the surface rights from 12111394 Ontario Ltd. Upon acquisition, Gold Candle begins a historical data compilation campaign that results in the generation of a database comprising 6,543 drill holes (414,714 m), 131 km of underground infrastructure, and stopes categorized by ore type.

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