Mountain caribou make up a unique ecotype, which feed on the slow-growing lichen of centuries-old trees.

But their future, and the fate of other mountain caribou, remain precarious.

Many large mammals are present in the park, including grizzly and black bears, mule and whitetail deer, moose, mountain caribou, and mountain goats.

The ancient forests provide essential habitat for endangered wildlife such as the spotted owl, marbled murrelet and mountain caribou.