Banff is a town within Banff National Park in Alberta , Canada . It is located in Alberta's Rockies along the Trans-Canada Highway , approximately 126 km (78 mi) west of Calgary and 58 km (36 mi) east of Lake Louise . At 1,400 to 1,630 m (4,590 to 5,350 ft) above sea level , [3] Banff is the community with the second highest elevation in Alberta, after Lake Louise.