About Dave Birrell Dave Birrell is a school teacher living in Nanton. He is the author of Calgary's Mountain Panorama, and Baz â”the biography of squadron leader Ian Willoughby Bazalgette. Books by Dave Birrell 50 Roadside Panoramas in the Canadian Rockies by (author) Dave Birrell Calgary's Mountain Panorama by (author) Dave Birrell & Ron Ellis
