One man's race to capture the Rocky Mountains glaciers before they vanish

Garrett Fisher spent much of his summer in 2015 flying over places like Yellowstone taking stunning pictures of retreating glaciers

After hearing that the glaciers of the Rocky Mountains are rapidly vanishing, financial consultant Garrett Fisher took a novel course of action - he flew a light aircraft, built in 1949, low and alone over the mountains in order to photograph them.

Fisher spent much of his summer in 2015 flying over places such as Yellowstone, Glacier National Park and Grand Teton National Park, taking stunning pictures of retreating glaciers for a new book.