Shoreline at Lake Louise
Shoreline rocks lead into the blue-green, glacial water of Lake Louise in Banff National Park. The lake's unusual color is the result of glacial movement over rock, creating fine rock particles known as rock flour. Meltwater from the glaciers at the head of the valley carries the rock flour into the lake, where it remains suspended in the water, refracting the light.
Lake Louise, Banff National Park, Alberta, Canada