Grand Canyon South Rim Vista, Arizona, 1950s 1950–1955 Excavated Rock Shelter with Period Restoration Attempt, American Southwest, circ 1950–1955 River at Dusk, American South, 1940s–1950s 1940–1955 Rural Landscape at Sunset with Power Lines, circa 1940s 1945–1949 Quarry or Excavation Site with Workers, mid-20th Century 1940–1965 Artist's Studio Interior, 1955 1955 Institutional Birthday Party, 1950s 1950–1959 Winter Landscape with Snow-Laden Conifers, circa 1940s Kodachrome Yellowstone Hot Spring Pool with 1950s Visitor Parking, Upper Geyser Basin 1950–1959 Alpine meadow with limestone scarps, likely Pacific Northwest or Northern Rockie 1955–1975 IMAG0495