Mortlach is a village in the Canadian province of Saskatchewan within the Rural Municipality of Wheatlands No. 163 and Census Division No. 7. The village is on Saskatchewan Highway 1 about 40 km west of the city of Moose Jaw. Thunder Creek passes the community to the north, where it is joined by Sandy Creek. Mortlach became a village on April 19, 1906, …Mortlach is a village in the Canadian province of Saskatchewan within the Rural Municipality of Wheatlands No. 163 and Census Division No. 7. The village is on Saskatchewan Highway 1 about 40 km west of the city of Moose Jaw. Thunder Creek passes the community to the north, where it is joined by Sandy Creek. Mortlach became a village on April 19, 1906, and is one of two towns in Saskatchewan to have been incorporated as a town to then be reverted to village status on January 1, 1949; the other is the village of Alsask.