Lake McDonald Hotel, Glacier National Park [Postcard]
Lake McDonald, Glacier National Park [Postcard]
Lake St. Mary, Glacier National Park, MT [Postcard]
Lassen Peak from Manzanita Lake in Lassen Volcanic National Park, CA [Postcard]
Lassen Peak in Lassen Volcanic National Park, CA [Postcard]
Lassen Volcanic Highway, Lassen Volcanic National Park [Postcard]
Liberty Cap and Mammoth Hotel, Yellowstone Park [Postcard]
Lily Pond, Wild Basin, Rocky Mountain National Park, CO [Postcard]
Little Matterhorn, Notch Top Mt. from Odessa Lake, Estes Park, (Elevation 10,000 Feet), Rocky Mountain National Park, Colorado [Postcard]
Little Pigeon River, Great Smoky Mountains National Park [Postcard]
Little River, Great Smoky Mountains National Park [Postcard]
Lobby, Lake McDonald Hotel, Glacier National Park [Postcard]
Loch Vale, Rocky Mountain National Park, CO [Postcard]
Logan Pass Highway at Tunnel, Showing Heavens Peak, Glacier National Park, MT [Postcard]
Long House, in the National Georgraphic Society's Explorer's Hall, Washington, DC [Postcard]
Longs Peak Mirrored in Bear Lake, Colorado, Rocky Mountain National Park [Postcard]
Looking East From Hopi Point, Grand Canyon, Arizona [Postcard]
Looking East from West Mountain Lookout, Hot Springs National Park, AR [Postcard]
Looking East from Yavapai Point, Grand Canyon National Park, Arizona [Postcard]
Looking Into North Carolina From The Indian Gap Highway, Balsam Mts. in The Distance, Great Smoky Mtns. Nat'l. Park [Postcard]
Looking Out From Natural Entrance, Carlsbad Caverns National Park, New Mexico [Postcard]
Lookout Studio, Grand Canyon National Park, AZ [Postcard]