Looking to send a postcard with a spectacular mountain range, a glacier, or wild animals on it? Then the town of Jasper, located in the heart of Canada’s Rocky Mountains, is the destination for you. Last summer we flew into Calgary and stuffed as much luggage as is humanly possible into a rental car. We strapped three children (aged 14, 10, and 8) in the back seat and headed northwest—256 miles to be exact. The drive along the way was an adventure in itself. Our first stop was in Banff, Canada’s first National Park and UNESCO World Heritage Site. While we were there, we took in the breathtaking sites of…