The Three Sisters are a trio of peaks near Canmore.. They are known individually as Big Sister, Middle Sister and Little Sister.
It was Albert Rogers, a nephew of Major Rogers, the discoverer of Rogers Pass in the Selkirk Mountains, who named the three peaks in 1883. He recalled, "There had been quite a heavy snowstorm in the night, and when we got up in the morning and looked out of the tent I noticed each of the three peaks had a heavy veil of snow on the north side and I said to the boys, 'Look at the Three Nuns.' They were called the Three Nuns for quite a while but later were called the 'Three Sisters,' The name "Three Sisters" first appeared on Dr. George Dawson's map of 1886 and it is quite likely it was he who thought that the name Three Sisters would be more appropriate.