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]
Loop Over on Newfound Gap Highway, Great Smoky Mountains National Park [Postcard]
Loop, Going-to-the-Sun Highway, Glacier National Park [Postcard]
Loop-Over Bridge, Great Smoky Mountains National Park [Postcard]
Lost Arrow Spire, Yosemite National Park, California [Postcard]
Lower Falls from Moran Point, 308 Ft., Yellowstone National Park [Postcard]
Lower Falls from Red Rock, Yellowstone National Park [Postcard]
Lower Falls, Yellowstone National Park [Postcard]
Lower Window Falls, Big Bend National Park, TX [Postcard]
Lupine Flower, Which Grows Profusely in the Valleys of Mt. Rainier National Park, State of Washington [Postcard]
Lupine, Lupinus Sericeus, Yellowstone Park [Postcard]
