Mountain was located in southwestern Manitoba, near Portage la Prairie.
Premier Dufferin Roblin once referred to the division's name as "curious", given that it marked by "the gentle landscape of the Pembina escarpment".
[1] Several prominent Manitoba politicians represented Mountain, including Charles Cannon, Ivan Schultz and Premier Thomas Greenway.
The constituency was shaped like an "L" in the nineteenth century, and was sometimes called "Greenway's armchair".
[3] In 1955, Mountain's population was estimated to be about 50% Anglo-Saxon, 33% French Canadian, and 16.5% Flemish.