Mount Assiniboine, also known as Assiniboine Mountain, is a pyramidal peak mountain on the Great Divide, on the British Columbia/Alberta border in Canada. At 3,618 m, it is the highest peak in the Southern Continental Ranges of the Canadian Rockies. Mount Assiniboine rises nearly 1,525 m above Lake Magog. Because of its resemblance to the Matterhorn in …Mount Assiniboine, also known as Assiniboine Mountain, is a pyramidal peak mountain on the Great Divide, on the British Columbia/Alberta border in Canada. At 3,618 m, it is the highest peak in the Southern Continental Ranges of the Canadian Rockies. Mount Assiniboine rises nearly 1,525 m above Lake Magog. Because of its resemblance to the Matterhorn in the Alps, it is nicknamed the "Matterhorn of the Rockies".