Mineral-Stained Geothermal Pool Edge, Yellowstone, 1960s 1960–1969 Rolling Farmland Valley with Collapsed Outbuilding, Eastern Canada, 1960s 1960–1969 Cenote or Spring-Fed Pool, Yucatan, 1960s 1960–1969 Coastal Headlands, Aerial View, circa 1960s 1960–1975 Mountain Valley at Dusk, circa 1960s 1960–1975 Coastal Town and Tidal Flats, Maritime Canada, 1960s 1960–1968 Tidal Flat Community, Maritime Canada, circa 1970s 1968–1982 Cenote or Subtropical Spring, Aerial View, circa 1960s-1970s 1960–1975 Florida Residential Garden, circa 1970s 1965–1980 Nighttime aerial view of a North American city, circa 1960s-1970s 1960–1975 Forested River Valley with Pasture, Appalachian Region, 1970s 1968–1978 Willamette Valley Farmland, Oregon, 1960s 1960–1968 Tidal Flats at Sunset, c. 1970s 1965–1985 Coniferous River Corridor, Northern Forest, circa 1970s 1965–1980 Palm Trees Against Sky, Tropical Location 1960–1975 Infrared Landscape with Scattered Trees, 1960s-1970s 1960–1975 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