Valley of the Ten Peaks and Moraine Lake, Banff National Park, Canada. Elevation of approximately 6,183'. The area around the lake has several walking/hiking trails which are, from time to time, restricted because of grizzly bear activity. The lake, being glacially fed, does not reach its crest until mid to late June. When it is full, it reflects a distinct shade of blue. The color is due to the refraction of light off the rock flour deposited in the lake on a continual basis.