Yellowstone: The Mystery of the Wolves

Grizzly Man

Rise of the Warrior Apes

Parks and People: Dope

Big Bend: The Wild Frontier of Texas

North America's National Parks

National Parks Exploration Series: Acadia - The First National Park East of the Mississippi

Unbranded

Into the Grand Canyon

The Trouble with Wolves

National Parks Adventure

Monumental Utah

Scenic Oregon

Yellowstone Park: 'Nature's Playground'

Zion: Canyon of Colour

Mighty Niagara

Missing 411: The Hunted

Yosemite the Magnificent

Colorful Colorado

Kluane