Calstock, Ontario

[1] in Northern Ontario, Canada, located in the unincorporated geographic township of Studholme in Cochrane District.

Lecours Lumber Company Ltd. operates a sawmill located in Calstock on a long-term federal lease.

[2] Lecours is the main employer of the Constance Lake First Nation, with 225 employees at this location.

After months of negotiations,[3] on 25 February 2013 Ben Lecours of Lecours Lumber Company Ltd. and Constance Lake First Nation negotiated memorandum of agreements through Regina based mediator Kenneth Gamble regarding Lecours operations on Constance Lake First Nation.

"[2] The Constance Lake First Nation Reserve is one of the nine First Nations in the mineral-rich Northern Ontario Ring of Fire area, a massive planned chromite mining and smelting development project in the mineral-rich area of the James Bay Lowlands.