Lake Tahoe + Northern Sierra, California
Greater Washington D.C., Maryland
Prairie Creek Redwoods State Park
Elkhorn Slough National Estuarine Research Reserve
Colorado Plateau, Utah
Dinosaur National Monument
Nairn Falls Provincial Park
Maroon Bells-Snowmass Wilderness, Colorado
San Isabel National Forest
Grand Canyon National Park
Bryce Canyon National Park
Mount Rainier Area, Washington