Kirkland Lake Gold Ltd. engages in the acquisition, exploration, development, and operation of gold properties. The company's principal properties include the Fosterville Mine located in the State of Victoria, Australia; and Macassa Mine situated in the Municipality of Kirkland Lake, Ontario, Canada. It has a strategic alliance agreement with Newmont Corporation to assess regional exploration opportunities around Newmont's Timmins properties and the company's Holt Complex in Ontario, Canada. The company was formerly known as Newmarket Gold Inc. and changed its name to Kirkland Lake Gold Ltd. in December 2016. Kirkland Lake Gold Ltd. is headquartered in Toronto, Canada.