Born in Unity, Saskatchewan in 1927, Knowles Perehudoff is most notably known as a landscape artist. She has studied at the University of Saskatchewan, the Goldsmith School of Art in London (England), and the Banff Centre. She became a member of the Order of Canada in 2004 and a member of the Royal Canadian Academy of Arts. Two of her pieces were rendered as postages stamps in 2006. Castle Mountain (also known as Miistukskoowa to the Siksika) is the easternmost member of the Main Ranges in the Bow Valley. Sitting almost exactly between Banff and Lake Louise, the mountain was also called Mount Eisenhower after the US president from 1946-1979.