Located along the northern border of Montana, Glacier National Park shares a border with Canada's Waterton Lakes National Park. Known as the Crown of the Continent, Glacier National Park encompasses 1,583 square miles of rugged Montana terrain. Named for the dozens of glaciers inside the park, visitors to the park can enjoy one of the few places in the continental United States where glaciers can still be found. - National Park Service, Glacier National Park

Perhaps one of the most vulnerable parks to the effects of global warming, Glacier National Park may be without the features for which it is named very soon. It is estimated that by 2020 virtually all the glaciers within the park will be gone. This estimate is approximately 10 years sooner than had previously been predicted. Being a critical element to the ecological system of the region, the disappearance of glaciers will no doubt have a permanent impact on the environment. While scientists are not quite sure what those impacts will be, they can say for certain that change is inevitable. - Anne Minard, National Geographic

For more information about Glacier National Park you can visit the park website here.