It was originally incorporated as a rural municipality on December 1, 1905.
[1] It ceased on January 1, 2015 as a result of its provincially mandated amalgamation with the RM of Albert and the RM of Arthur to form the Municipality of Two Borders.
[2] The RM was located at the southwesternmost part of the province, bordering the province of Saskatchewan in Canada and the state of North Dakota in the United States.
It included the unincorporated communities of Pierson and Lyleton.
According to Statistics Canada, the RM had an area of 769.14 km2 (296.97 sq mi).