The Three Sisters are mountain peaks located near Canmore, Alberta.

Individually, they are known as Big Sister, Middle Sister and Little Sister.

After a storm left a heavy veil of snow on the Northern face of all three peaks, they were named the Three Nuns in 1883 by Albert Rogers, nephew of A.B. Rogers, an American surveyor, best known for his discovery of the Rogers Pass in British Columbia. In 1886 they were renamed the Three Sisters by George Dawson who was a Canadian Geologist and surveyor.

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