Mount St. Piran  Mount St. Piran is a mountain in Banff National Park near Lake Louise, Alberta, Canada. Located in the Bow River Valley southeast of the Minewakun Lake Valley; northwest of Lake Agnes; between Lake Louise Valley and lower Bath Creek, Banff Park, Alberta. It was named in 1894 by Samuel E.S. Allen after Saint Piran, the Patron Saint of Cornwall. • Alan Kane, Scrambles in the Canadian Rockies – 3rd Edition, P 309 • Gerry Shea, The Aspiring Hiker's Guide 1: Mountain Treks in Alberta, PP 132 - 133 • Dave Birrell, 50 Roadside Panoramas in the Canadian Rockies, P 90 • Tony Daffern, Popular Day Hikes 2: Canadian Rockies