Lake O’Hara nestles in the Canadian Rockies at more than 6,600 feet “like an emerald in a bowl of mountains,” wrote paleontologist Charles Walcott in 1911. Generations of artists have put brush to canvas at this lookout, called All Souls Prospect, in British Columbia’s Yoho National Park.

See more pictures from the June 2015 feature story “Canada’s Little Park of Wonders.”