Subject
National parks and reserves
9
Art Picture
2
Rocky Mountains
2
America Discovery and exploration
1
Barrier islands
1
Birds in art
1
Canyons
1
Denali National Park and Preserve (Alaska)
1
Folk festivals
1
George Washington Carver National Monument (Mo.)
1
Grand Teton National Park (Wyo.)
1
Habitat conservation
1
Historic sites
1
Mount Rainier National Park (Wash.)
1
North Cascades National Park (Wash.)
1
Tuskegee Institute National Historic Site (Tuskegee, Ala.)
1
Wilderness areas
1
Yellowstone National Park
1
Yosemite National Park (Calif.)
1