The riding includes the southeastern corner of the Cochrane District, all of Timiskaming, the southeastern corner of the Sudbury District, and the northern third of Nipissing District.

Included in the riding are the city of Temiskaming Shores and the towns of Cochrane, Iroquois Falls, Kirkland Lake, Larder Lake, McGarry, Englehart, Earlton, Cobalt, West Nipissing, and French River.