Desert Wildflowers and Cacti, American Southwest 1940–1949 Mountain Waterfall in Limestone Canyon, 1950s 1950–1959 Forest Floor Regeneration, 1950s 1950–1959 Aerial View of Eroded Canyon Badlands, American Southwest, 1950s 1950–1959 Winter Landscape with Frozen Water, 1950s 1950–1959 Willamette Valley Richtung Cascade Range, Oregon, 1940er Jahre 1940–1948 Alpine Peaks from Aircraft, mid-20th Century 1945–1965 Atoll at Horizon, Pacific, 1940s-1950s 1940–1955 Forest Canopy Study, circa 1950s 1945–1965 Swampland with Cypress Roots, American South, circa 1940s 1935–1950 Tree-lined pasture, mid-20th century 1950–1965 Mountain Stream with Boulders and Overhanging Tree 1950–1975 Wooded Waterside Clearing, Mid-20th Century 1945–1970 Palm Trees Against Sky, Tropical Location 1960–1975 Alpine Lake Vista with Coniferous Forest, circa 1960s 1955–1975 Granite Spire and Ponderosa Pines, Rocky Mountain West, 1950s 1950–1959 Geese by a Tropical Pond, Ornamental Garden, 1950s 1950–1959 Formal garden border, 1950s 1950–1959 Chalk Cliff Face with Coastal Vegetation, British Channel Coast 1945–1975 Moose in Willow Flats, Yellowstone Valley, 1950s 1950–1959 · Yellowstone National Park, Wyoming, USA Conifer Ridge at Dusk, Mountain Valley, 1950s 1950–1959 The Broadmoor Hotel from Cheyenne Mountain Slope, Colorado Springs, c. 1960s 1958–1972 Stream-worn boulders and eroded streambed, limestone country 1930–1970 Aerial View of Shallow Reef or Sandbar, Tropical Waters 1940–1970 Aerial View of Volcanic Island with Steam Plumes, Mid-20th Century 1940–1960 Aerial View from Light Aircraft, Mid-20th Century 1950–1959 Mountain Valley in Mist, Early Color Photography 1940–1960 Aerial Survey of River Valley, Mid-20th Century 1950–1960 Infrared Landscape with Scattered Trees, 1960s-1970s 1960–1975 Aerial View of Cloud Bank, Mid-20th Century 1950–1965 Eroded Canyon Wall with Vegetation, Undated Geological Survey 1950–1970 Desert Wildflower, High Desert Plateau Region c. 1949 Garden flowers, 1950s color photography 1950–1959 Rocky ridge in coniferous forest, American Southwest or High Plains region 1950–1975 Grand Canyon South Rim Vista, Color Slide, Mid-20th Century 1950–1975 · Grand Canyon Mount Rainier Summit Glaciers, Washington Cascades, mid-20th century 1950–1959 Aerial View, Boreal Forest and Mountain Valley, Western Canada, c. 1970s 1950–1959 Deep-sea floor with crustaceans, deep ocean research 1960–1985 Golden Gate Bridge at Sunset from San Francisco Bay Shore, ca. 1960s–70s 1960–1978 Agricultural Valley View from Elevated Rimrock, American West, Mid-20th Century 1955–1970 Mountain Town Under Low Cloud, Western North America, ca. 1960s 1958–1972 Open-Pit Mine Workings and Waste Dumps, Western North America, 1940s 1940–1949 Storm Gathering Over Forested Ridge, 1950s 1950–1959 Quarried Stone and Mineral Deposits, Early 20th Century 1950–1955 River View from Moving Vehicle, Mid-20th Century 1950–1970 Sea Cave and Surge Channel, Rocky Atlantic or Pacific Coastline, 1950s 1950–1959 Cave Entrance with Limestone Formations and Moss Growth 1950–1959 Mountain Lake at Dusk, Mid-20th Century 1940–1965