Yoho, a Cree expression of awe and wonder, describes the park that is nestled on the western slopes of the Rockies.  It boasts towering rock walls, fantastic waterfalls and 28 peaks over 9800 feet in height.  Along the road visitors, if their timing is right,  can watch a train go through the Spiral Tunnels, an engineering marvel completed in 1909 to reduce the original railway grade of 4.5% (steepest of any in North America) to a much safer 2.2%.  We drove the steep Yoho Valley Road to Takakkaw Falls, one of the highest waterfalls in Canada and stopped to see the natural rock bridge that arches over the Kicking Horse River.