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Taylor Mine

The Taylor Mine is the Company’s newest gold mine with significant exploration potential

Quick Facts

Holt Shaft

Location Matheson, ON
Mine type Underground, decline access
2018 Production  58,633 ounces
Deposit type Orogenic greenstone hosted gold (Lode Gold deposit)
Process Ore is processed at Holt Mill
End product Gold doré
Commenced Operation Q4 2015
Resources & Reserves

Taylor Mine Overview

The Taylor Mine was commissioned in Q4 of 2015 and was originally developed by St Andrew Goldfields Ltd. Prior to the St Andrew Goldfields Ltd. acquisition, the Taylor property area had been explored by Hollinger and by a joint venture between Labrador Mining and Exploration Company Ltd. (successor to Hollinger) and later by Esso Minerals Canada (Esso Minerals). The property included two near surface gold deposits, the Shoot Deposit and the Shaft Deposit and the deeper West and East Porphyry deposits. A 6,000-tonne bulk sample from development in the Shaft Deposit at the Taylor Project was processed at the Stock mill in September 1991. Gold recovery ranged from 89% to 96% for material grading on average 2.2 g/t Au. Development activities re-commenced in 2010 and included two bulk samples. Kirkland Lake Gold Inc. completed the acquisition of St Andrew Goldfields Ltd. in January of 2016, which included the Holt Mine Complex, comprising of the Taylor, Holt and Holloway mines and in a milling facility. The Taylor Mine is the Company's newest gold mine with significant exploration potential. It is a high-grade cornerstone asset for the Company. The mine is located approximately 70 km west of the Holt Mill and ore is trucked daily for processing and refining.

Operating Data

Empty 2018  2017 2016(1)
Gold produced (oz) 58,633
50,764 42,639
Ore processed (tonnes) 382,059
292,003 199,231
Gold grade (g/t) 5.0
5.6 6.90
Recovery (%) 94.7
96.2 96.5

(1) - Represents operating data for the entire 12-month period ended December 31, 2016, including the period of January 1, 2016 to January 25, 2016 prior to the acquisition of St Andrew Goldfields Ltd. by KLG on January 26, 2016

Mining & Processing Method

Mining at the Taylor Mine is currently focused on extracting ore from the 1004 Zone, employing a mix of Long Hole Stoping (60%) and cut and fill (40%) methods. Ore is hauled to surface by a fleet of 45 tonne trucks, averaging a production rate of approximately 600 tpd. Ore from the Taylor Mine is processed at the Holt Mill.

The Holt Mill is one of the best gold mills in the region with a capacity of 3,000 tpd, of which approximately 1,300 tpd are supplied from Holt Mine and a little under 600 tpd from the Taylor Mine, representing a 60% utilization rate.

The Holt Mill was constructed in 1988, originally designed for a throughput of 1,360 tpd. Expansions in 1988 and 2001 increased the throughput to 2,500 tpd and 3,000 tpd respectively.

Surface ore storage totals 4,900 tonnes in three silos. There is a grinding circuit, two cyclone cluster circuits, a thickener, and a Carbon-in-Leach (CIL) circuit within the plant facilities.

Precious metal stripping is performed in batch. Carbon is transferred to an adsorption column where a Zadra process is utilized as the gold elution method. Barren solution is circulated through two shell and tube heat exchangers and a 360 kW electric inline heater. The resulting pregnant solution is pumped from the solution tank to an electrowinning cell. The gold precipitate is further refined using a 125 kW inductotherm furnace.

Geology & Mineralization

The Taylor Mine is located along the Porcupine-Destor Fault "PDF", a regional structural feature associated with gold mineralization striking roughly east-west and dips to the south at 40 to 60°.

The geological setting at Taylor can be generalized from south to north consisting of mafic volcanic rocks, which are relatively undeformed and unaltered; ultramafic and mafic volcanic rocks, which vary from weakly to strongly deformed, altered and contain felsic to intermediate porphyritic intrusions of varying shapes and sizes; and then metasedimentary rocks, which are interpreted to represent the footwall of the PDF.

Four mineralized deposits have been identified at Taylor over a strike length of 2 kms. From east to west these are; the Shaft Deposit, with gold mineralization associated with felsic intrusive rocks; the East and West Porphyry deposits, a system of stacked lenses, with the gold mineralization associated with felsic intrusive and altered mafic-ultramafic rocks (Green Quartz Carbonate); and the Shoot Deposit, with gold mineralization hosted by argillaceous metasedimentary rocks within a package of green quartz carbonate ultramafic volcanics. Follow-up drilling will continue east of the Shaft Deposit and also on the West Porphyry Deposit along strike to the west and at depth below the 470 elevation throughout 2017. Gold commonly occurs as relatively coarse-sized free gold in quartz, but also occurs as fine particles, which may be intimately associated with sulphides both in quartz-carbonate veins and in surrounding altered host rocks.


Since the Taylor mine commenced operation in Q4 2015, the focus has been on development of the mine infrastructure (underground access, power, dewatering). Drilling in 2017 has been largely focused along the hanging wall of the PDF, where high-grade gold mineralization has been intersected up to 1.8 km east of the Shaft Deposit. Drilling during the year has also been successful in extending both the East and West Porphyry deposits to depth and in intersecting gold mineralization at targets situated in a gap between the Shaft and West Porphyry deposits.