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Kirkland Lake Gold Reports New High-Grade Intersections at Macassa Mine, Extends Mineralization Along Strike and Up and Down Dip of South Mine Complex

  • Drilling intersects high-grade mineralization up to 180 metres (“m”) east of current Mineral Reserves at South Mine Complex (“SMC”)
    o Key intercepts:589.5 grams per tonne (“gpt”) over 2.0 m core length
 25.1 gpt gpt over 2.0 m core length
 16.4 gpt over 2.0 m core length
 14.8 gpt over 2.0 m core length
  • Drilling to test north of current Mineral Resource intersects high-grade mineralization up to 100 m up dip and in footwall to current Mineral Resource at SMC
   o Key intercepts:258.1 gpt over 2.0 m core length (Up Dip)
 130.9 gpt over 2.0 m core length (Up Dip)
 28.3 gpt over 2.0 m core length (Footwall lens)
 22.6 gpt over 2.0 m core length (Up Dip)
  • Drilling along south margin of current SMC Mineral Reserves intersects high grades, extends mineralization down dip of Mineral Resources and identifies new mineralized lenses to the southeast of SMC
   o Key intercepts:101.7 gpt over 2.0 m core length (SE Zones)
 69.3 gpt over 2.0 m core length (SE Zones)
 9.3 gpt over 2.0 m core length (SE Zones)
 38.9 gpt over 2.0 m core length (Down Dip)
1. True widths of drill results being reported are not known at this time.

TORONTO, July 06, 2021 (GLOBE NEWSWIRE) -- Kirkland Lake Gold Ltd. (“Kirkland Lake Gold” or the “Company”) (TSX:KL) (NYSE:KL) (ASX:KLA) today reported new drill results from 54 holes (20,773 m) of underground exploration drilling from the Macassa Mine in Kirkland Lake, Ontario. Holes in the program were completed from new drill platforms located on the east side of the 5300 and 5800 levels and designed to confirm and expand Mineral Reserves and Mineral Resources in the SMC zone to the east as well as up and down dip.

Tony Makuch, President and CEO of Kirkland Lake Gold, commented: “Today’s drilling results at Macassa highlight the extensive potential that exists to add new Mineral Reserves and Mineral Resources in the SMC, with high-grade intersections being reported outside of the existing deposit, to the east, south and north, as well as up and down dip. In addition, the new results also include high-grade intersections in the area where the SMC merges with the Amalgamated Break, as well as the identification of potential new high-grade lenses to the southeast and in the footwall of the main SMC structure. Of particular interest is the fact that, based on interpretations of the latest drilling, the SMC East mineralized structure appears to be swinging to the northeast in the direction of the large corridor of high-grade mineralization that we identified along the Main Break and announced last year. The convergence of these two structures would represent an extremely attractive exploration target and evaluating the projected area of convergence will be an important priority of ours in the future. We continue to target approximately 250,000 m of total drilling at Macassa in 2021, with eight underground drills and one surface drill currently in operation.”

A total of 16 of the new holes (5,597 m) of drilling from the new program were drilled to test the potential eastward extension of Mineral Resources and Mineral Reserves in the SMC (Figure 1). Key intercepts from the drilling include: 589.5 gpt over 2.0 m, including 1,296.5 gpt over 0.9 m, from 53-4443, 25.1 gpt over 2.0 m, including 99.7 gpt over 0.5 m, from 53-4432, 16.4 gpt over 2.0 m, including 62.8 gpt over 0.5m, from 53-4431, 14.8 gpt over 2.0 m, including 64.2 gpt over 0.4 m, from 53-4444 and 13.0 gpt over 2.7 m, including 48.2 gpt over 0.3 m and 5.4 gpt over 2.0 m, from 53-4267. These intercepts are from holes drilled from the two furthest east drill platforms on the 5300 Level exploration drive. The holes intersected the SMC East trend between 80 and 180 m east of current Mineral Resources and in the general vicinity of a previously released intercept from hole AB-16-02, which intersected a value of 33.3 gpt over 2.0 m (see press release dated April 22, 2020).

These intercepts are believed to be related to new high-grade lenses occurring along the east extension of the SMC East Trend, with the overall trend appearing to be swinging slightly to the northeast towards the east portion of the previously announced corridor of high-grade mineralization identified along the Main Break (see press release dated April 22, 2020). The convergence of these two structures represents a high-potential target area for future drilling as drifting on the 5300 level continues to advance eastwards.

An additional 15 holes (5,987 m) of drilling from the new program were drilled to test the potential extension of mineralization up dip and into the footwall of the of current Mineral Reserves and Mineral Resources in the SMC.

The majority of this drilling was completed from the 5300 Level and focused on a 150 m strike length in the central portion of the SMC East structure. Significant results from the drilling include: 258.1 gpt over 2.0 m, including 1688.2 gpt over 0.3 m, from 53-4140; 130.9 gpt over 2.0 m, including 858.8 gpt over 0.3 m, from 53-4330, 28.3 gpt over 2.0 m, including 39.7 gpt over 1.4 m, from 53-4287, 22.6 gpt over 2.0 m, including 49.7 gpt over 0.9 m, from 53-4211, 14.6 gpt over 2.0 m, including 95.4 gpt over 0.3 m, from 53-4388 and 10.1 gpt over 2.0 m from 53-3929. These holes extend the main target horizon up to approximately 100 m up dip and indicate the potential for new lenses of mineralization in the footwall of the main structure and continue to remain open for future expansion in both areas.

Additional drilling for this target was completed from a new drill platform on the 5800 Level located approximately 350 m to the west of the holes on the 5300 Level. Significant results include: 15.7 gpt over 2.0 m, from 58-552 and 21.5 gpt over 2.0 m, from 58-585, which tested the structure in this area up to 100 m up dip. Testing within the 350 m gap between these two new holes and others drilled on 5300 level is limited and considered to have significant potential for additional mineralization.

Another 23 holes (9,189 m) of drilling from the new program were drilled to test the exploration potential along the south margin and down-dip extension of mineralization from current Mineral Reserves and Mineral Resources in the SMC.

The majority of these holes (15 holes for 5,871 m) were from platforms in the west and central portions of the target area where the SMC East structure appears to be merging with the Amalgamated Break. Significant intercepts from this drilling include: 38.9 gpt over 2.0 m, including 153.6 gpt over 0.3 m, from 53-4396, 31.7 gpt over 2.1 m, including 110.2 gpt over 0.4 m, from 53-4398, 21.4 gpt over 2.1 m, including 70.5 gpt over 0.6 m, and 8.8 gpt over 2.4 m from 53-4281, 19.8 gpt over 2.1 m, including 104.5 gpt over 0.3 m, and 8.7 gpt over 2.3 m from 53-4380 and 16.7 gpt over 2.0 m, including 69.0 gpt over 0.5 m, 10.3 gpt over 3.2 m, including 59.4 gpt over 0.3 m, and 7.4 gpt over 3.8 m, including 38.8 gpt over 0.5 m, from 53-4282. These holes tested the structure up to 75 m down dip from current Mineral Resources in the SMC, with the structure remaining open for further expansion.

The remaining eight holes (3,318 m) designed to test the south margin and down-dip extension of mineralization were drilled from a platform near the east limit of the 5300 Level where the SMC East Trend appears to swing to the northeast and be intersected by a northeast trending diabase dike. Significant results include: 101.7 gpt over 2.0 m, including 220.8 gpt over 0.9 m, from 53-4366, 69.3 gpt over 2.0 m, including 299.9 gpt over 0.5 m, and 11.3 gpt over 2.0 m from 53-4417, 49.3 gpt over 2.0 m, including 152.0 gpt over 0.6 m, from 53-4418 and 23.8 gpt over 2.0 m, including 77.5 gpt over 0.6 m, from 53-4056. The mineralization within these holes appears to be located in a new lens of mineralization located to the south of the main SMC East Trend where there appears to have been limited past testing.     

Exploration drilling at Macassa is currently continuing with eight drills underground and one drill on surface.

Qualified Person

The Company’s exploration programs at Macassa are conducted under the supervision of Eric Kallio, P.Geo., Senior Vice President, Exploration and Chris Evans, P.Geo, Chief Exploration Geologist at Macassa Mine. Eric Kallio and Chris Evans are the ‘qualified persons’ for the purpose of National Instrument 43-101, Standards of Disclosure for Mineral Projects, of the Canadian Securities Administrators, and have reviewed and approved the scientific and technical information in this news release.

QA/QC Controls

The Company has implemented a quality assurance and control (“QA/QC”) program to ensure sampling and analysis of all exploration work is conducted in accordance with best practices. The drill core is sawn in half with one half of the core samples shipped to Swastika Laboratories in Swastika, Ontario. The other half of the core is retained for future assay verification. Other QA/QC includes the insertion of certified reference standards, blanks and the regular re-assaying of pulps and rejects at alternate certified labs. Gold analysis is conducted by fire assay using atomic absorption or gravimetric finish. The laboratory re-assays at least 10% of all samples and additional checks may be run on anomalous values.

About Kirkland Lake Gold Ltd.

Kirkland Lake Gold Ltd. is a senior gold producer operating in Canada and Australia that is targeting 1,300,000 – 1,400,000 ounces of production in 2021. The production profile of the Company is anchored by three high-quality operations, including the Macassa Mine and Detour Lake Mine, both located in Northern Ontario, and the Fosterville Mine located in the state of Victoria, Australia. Kirkland Lake Gold’s solid base of quality assets is complemented by district scale exploration potential, supported by a strong financial position with extensive management expertise.

For further information on Kirkland Lake Gold and to receive news releases by email, visit the website at

Cautionary Note Regarding Forward-Looking Information

This Press Release contains statements which constitute “forward-looking statements” within the meaning of applicable securities laws, including statements regarding the plans, intentions, beliefs and current expectations of the Company with respect to the future business activities and operating performance of the Company. The words “may”, “would”, “could”, “should”, “will”, “intend”, “plan”, “anticipate”, “believe”, “estimate”, “expect” and similar expressions, as they relate to the Company, are intended to identify such forward-looking statements. Investors are cautioned that forward-looking statements are based on the opinions, assumptions and estimates of management considered reasonable at the date the statements are made such as, without limitation, opinion, assumptions and estimates of management regarding the Company’s business, including but not limited to; the continued exploration programs on the SMC and Amalgamated Break mineralization, the timing and results thereof; the ability to continue to expand the SMC and Amalgamated Break and to increase levels of resources and reserves as a result of such exploration programs and the anticipated timing thereof; the potential to increase the level of resources and reserves and potential conversion of mineral resources; the anticipated completion date of the #4 shaft and potential impact and benefits thereof; the amount of future production over any period; the anticipated overall impact of the Company’s COVID 19 response plans including measures taken by the Company to reduce the spread of COVID 19; and assumptions made relating to operating cash costs based on forecasts and projections. Such opinions, assumptions and estimates, are inherently subject to a variety of risks and uncertainties and other known and unknown factors that could cause actual events or results to differ materially from those projected in the forward-looking statements. These factors include the Company's expectations in connection with the projects and exploration programs being met, the impact of general business and economic conditions, global liquidity and credit availability on the timing of cash flows and the values of assets and liabilities based on projected future conditions, the impact of COVID-19, fluctuating gold prices, currency exchange rates (such as the Canadian dollar versus the United States Dollar), possible variations in ore grade or recovery rates, changes in accounting policies, changes in the Company's corporate mineral reserves and resources, changes in project parameters as plans continue to be refined, changes in project development, construction, production and commissioning time frames, the possibility of project cost overruns or unanticipated costs and expenses, higher prices for fuel, power, labour and other consumables contributing to higher costs and general risks of the mining industry, failure of plant, equipment or processes to operate as anticipated, unexpected changes in mine life, seasonality and unanticipated weather changes, costs and timing of the development of new deposits, success of exploration activities, permitting time lines, government regulation of mining operations, environmental risks, unanticipated reclamation expenses, title disputes or claims, and limitations on insurance, as well as those risk factors discussed or referred to in the Company's annual Management's Discussion and Analysis and Annual Information Form for the year ended December 31, 2020 and its filings for the quarterly period ended March 31, 2021, filed with the securities regulatory authorities in certain provinces of Canada and available at

Should one or more of these risks or uncertainties materialize, or should assumptions underlying the forward-looking statements prove incorrect, actual results may vary materially from those described herein as intended, planned, anticipated, believed, estimated or expected. Although the Company has attempted to identify important risks, uncertainties and factors which could cause actual results to differ materially, there may be others that cause results not to be as anticipated, estimated or intended. The Company does not intend, and does not assume any obligation, to update these forward-looking statements except as otherwise required by applicable law.

Cautionary Note to U.S. Investors - Mineral Reserve and Resource Estimates

This press release has been prepared in accordance with the requirements of the securities laws in effect in Canada, which differ in certain material respects from the disclosure requirements of United States securities laws. The terms “mineral reserve”, “proven mineral reserve” and “probable mineral reserve” are Canadian mining terms as defined in accordance with Canadian National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”) and the Canadian Institute of Mining, Metallurgy and Petroleum (the “CIM”) – CIM Definition Standards on Mineral Resources and Mineral Reserves, adopted by the CIM Council, as amended (the “CIM Standards”). These definitions differ significantly from the definitions in the disclosure requirements promulgated by the Securities and Exchange Commission (the “SEC”) applicable to domestic reporting companies. Investors are cautioned that information contained in this Annual Information Form may not be comparable to similar information made public by United States companies subject to the reporting and disclosure requirements under the United States federal securities laws and the rules and regulations of the SEC thereunder.


Anthony Makuch, President, Chief Executive Officer & Director
Phone: +1 416-840-7884

Mark Utting, Senior Vice President, Investor Relations
Phone: +1 416-840-7884

Macassa Exploration - SMC EAST
Drill Hole
COLLARS - UTM NAD 83DirectionEnd Depth (m)
Core IntervalResults 
EastingNorthingAzimuth (°)DipFrom (m)To (m)Length (m)Au (gpt) 
AB-16-02**EAST EXTENSION5703445331755358-7426281727.11729.12.033.3 
Including      1727.31727.60.3203.7 
AB-16-02**MAIN BREAK     2045.72047.72.017.4 
Including      2046.92047.20.386.5 
53-3887SMC FOOTWALL56735853324456-41732583.8585.82.06.8 
Including      584.1584.50.333.0 
53-3929*UP-DIP EXTENSION5673585332446351-33747325.6327.72.010.1 
53-3929*SMC FOOTWALL     418.5420.52.018.5 
53-4056DOWN-DIP EAST567355533244534-54610373.1375.12.023.8 
Including      373.1373.70.677.5 
53-4089DOWN-DIP CENTRAL567357533244727-51396NSV 
53-4091DOWN-DIP EAST567357533244736-45472354.2356.32.09.1 
Including      354.2354.50.328.3 
53-4091      378.0381.13.17.3 
53-4140UP-DIP EXTENSION5673585332445347-52398278.6281.32.776.1 
Including      278.6279.20.6293.4 
53-4140      285.6287.62.09.8 
53-4140      290.5292.52.07.5 
Including      291.7292.20.425.9 
53-4140      306.8308.82.0258.1 
Including      307.1307.40.31688.2 
53-4145DOWN-DIP CENTRAL56735853324454-59427297.8299.92.115.2 
Including      299.3299.90.648.0 
53-4148DOWN-DIP CENTRAL56735853324457-57457NSV 
53-4158EAST EXTENSION57029753320235-62411NSV 
53-4159EAST EXTENSION5702975332023350-51396NSV 
53-4188DOWN-DIP EAST570297533202357-86381256.6258.82.19.0 
53-4207EAST EXTENSION56735253326292-43326NSV 
53-4208DOWN-DIP EAST5673375332698331-80366254.2256.22.011.2 
Including      255.0255.30.372.0 
53-4209EAST EXTENSION5702975332022343-70335NSV 
53-4210EAST EXTENSION5702965332023349-36320NSV 
53-4211UP-DIP EXTENSION5701685331804356-29390297.2299.32.022.6 
Including      298.2299.10.949.7 
53-4211      338.1340.12.06.3 
Including      338.7339.00.340.9 
53-4211      346.5348.62.16.2 
Including      346.5347.00.520.3 
53-4239EAST EXTENSION5702975332023350-16343NSV 
53-4240EAST EXTENSION5673385332698335-31329NSV 
53-4241EAST EXTENSION5673385332698335-22338281.5284.63.15.0 
Including      282.5282.90.325.6 
53-4248UP-DIP EXTENSION5673575332444335-36420NSV 
53-4267EAST EXTENSION5702965332024359-20335239.3242.02.713.0 
Including      240.2240.50.345.0 
Including      241.7242.00.348.2 
53-4267      277.8279.82.05.4 
Including      278.8279.20.424.5 
53-4279UP-DIP EXTENSION5701675331805332-32411NSV 
53-4281DOWN-DIP CENTRAL5701695331802337-61457275.1277.12.121.4 
Including      276.1276.60.670.5 
53-4281      389.4391.82.48.8 
53-4282DOWN-DIP CENTRAL5701685331803345-71411324.0326.02.05.1 
Including      324.8325.20.519.9 
53-4282      332.2334.22.016.7 
Including      333.3333.80.569.0 
53-4282      350.7353.93.210.3 
Including      350.7351.00.359.4 
53-4282      359.7363.53.87.4 
Including      361.8362.30.538.8 
53-4282      367.9369.92.07.2 
53-4286UP-DIP EXTENSION5702955332022316-36366286.3288.32.09.0 
Including      287.1287.70.622.7 
53-4287UP-DIP EXTENSION5702975332022326-35396266.2268.22.028.3 
Including      266.4267.91.439.7 
53-4309DOWN-DIP CENTRAL5701695331802342-67404299.0301.02.08.6 
Including      299.5300.10.628.3 
53-4330UP-DIP EXTENSION5702965332022324-27421367.0369.02.0130.9 
Including      367.9368.20.3858.8 
53-4331EAST EXTENSION5702965332023343-23351NSV 
53-4333EAST EXTENSION5702535331968356-41366245.5247.82.311.6 
Including      246.9247.50.637.1 
53-4333      253.9256.02.114.6 
Including      253.9254.20.328.8 
Including      255.7256.00.372.9 
53-4366DOWN-DIP EAST5702545331967351-78381313.3315.32.0101.7 
Including      313.9314.90.9220.8 
53-4371DOWN-DIP CENTRAL5701695331802345-69408313.0315.22.113.3 
Including      313.9314.90.923.5 
53-4380DOWN-DIP CENTRAL5700265331722347-75366259.0261.12.119.8 
Including      260.1260.50.3104.5 
53-4380      281.9284.22.38.7 
Including      281.9283.01.115.2 
53-4380      284.2286.22.06.2 
53-4381DOWN-DIP CENTRAL57002753317227-62366269.8272.02.28.4 
Including      270.8271.40.523.2 
53-4382DOWN-DIP CENTRAL570027533172219-75351215.2217.72.614.6 
Including      215.2216.41.220.7 
53-4382      226.2228.22.05.0 
Including      227.2227.60.323.8 
53-4388UP-DIP EXTENSION57016953318041-25411400.5402.52.014.6 
Including      401.1401.40.395.4 
53-4389UP-DIP EXTENSION57016953318048-26427339.5341.82.25.0 
53-4389      405.9407.92.08.8 
Including      407.0407.30.356.8 
53-4396DOWN-DIP CENTRAL5700275331721303-62366267.3269.32.038.9 
Including      268.2268.50.3153.6 
53-4397DOWN-DIP CENTRAL5700275331721312-69351271.4273.92.514.7 
Including      272.9273.30.478.3 
53-4398DOWN-DIP CENTRAL5700265331721325-69351254.3256.42.131.7 
Including      254.3254.70.4110.2 
53-4399UP-DIP EXTENSION5701695331804352-29411341.4343.42.05.2 
Including      342.8343.10.330.1 
53-4407DOWN-DIP CENTRAL5700255331720296-60396268.4270.42.09.8 
Including      268.4268.90.533.6 
53-4413EAST EXTENSION5703515332070347-10366268.2270.42.18.5 
Including      269.2269.70.521.5 
53-4413      270.4272.52.17.2 
Including      271.1271.90.815.9 
53-4416DOWN-DIP EAST5703525332069347-67346216.4218.42.06.1 
Including      217.0217.30.329.5 
53-4417DOWN-DIP EAST5703525332069347-75366222.5224.52.011.3 
Including      222.7223.91.217.8 
53-4417      242.4244.42.069.3 
Including      242.6243.10.5299.9 
53-4418DOWN-DIP EAST5703525332069347-83396189.7191.72.049.3 
Including      191.1191.70.6152.0 
53-4431EAST EXTENSION5703515332070343-17366239.9241.92.016.4 
Including      241.2241.70.562.8 
53-4432EAST EXTENSION5703515332070343-25327223.4225.42.025.1 
Including      224.0224.50.599.7 
53-4439DOWN-DIP CENTRAL5700275331721304-67366308.8318.59.89.9 
Including      313.0313.60.616.1 
53-4439      334.1336.52.45.7 
53-4443EAST EXTENSION57035253320702-16352235.2237.22.0589.5 
Including      235.7236.60.91296.5 
53-4444EAST EXTENSION57035253320682-26335208.1210.22.014.8 
Including      209.8210.20.464.2 
58-552UP-DIP EXTENSION569563533200216832305200.7202.72.015.7 
Including      201.7202.10.485.0 
58-554UP-DIP EXTENSION569565533199917639305NSV 
58-583UP-DIP EXTENSION569564533200017150274NSV 
58-585UP-DIP EXTENSION569564533200017119320267.6269.62.021.5 
Including      269.0269.30.3139.1 


1. True widths are not known at this time.

* Previously reported Intercept        
**Previously unreported Intercept

Figure 1. Plan View – Macassa Mine is available at

Figure 1.

Plan View – Macassa Mine
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