Photographers Charles Glatzer and Nathan Lee Allen on their Yellowstone National Park conservation collaboration

Photograph showing the Grand Canyon of the Yellowstone National Park, by wildlife photographer Charles Glatzer.

One of the foremost natural wonders of the USA, Yellowstone National Park is home to hundreds of species of animals sharing almost 3,500 square miles of a stunningly diverse and pristine landscape. 

Located in Wyoming and Montana in the north-west of the country, Yellowstone has to contend with many environmental issues of our times – extreme weather conditions, warming temperatures and the impact of increasing visitor numbers and behaviour.