Emerald Lake in Yoho National Park is one of the Canadian Rockies’ finest lakes and a resplendent place to visit in British Columbia. It’s the largest lake in Yoho National Park and one of the most stunning BC Lakes.
Emerald Lake gets its name as the glacial waters refract light in a vibrant display of color. The President Range mountains surround the lake and form a natural amphitheater of the grandest scale with towering peaks and forested banks.
The melting glaciers high above the lake deposit a rock flour (fine rock ground by moving glaciers) into the lake, which causes the lake to refract light in the brilliant color. https://thebanffblog.com/emerald-lake/