EraDrag across the decades to brush a range
The short version The archive turns up 409 records, most of them around 1950s and Grand Canyon. 182 are confidently dated; the other 227 are educated guesses — about as precise as it sounds. All are free to use.
Forest Canyon with Stream, Early Color Photography 1945–1965 Mountain Valley with Glacial Melt and Mining Camp, 1950s-1960s 1950–1968 Coastal View with Sailboats, Mid-20th Century 1950–1965 Estate Garden with Formal Borders, Mid-20th Century 1945–1975 Institutional flower bed display, mid-20th century 1945–1965 Coniferous River Corridor, Northern Forest, circa 1970s 1965–1980 Mangrove Channel, Hand-Tinted Kodachrome, circa 1940s 1945–1955 Desert Canyon, Tourist Group, Mid-20th Century 1950–1970 Mountain Valley Landscape, Mid-20th Century 1940–1970 Sunset over Landscape with Scrub Growth, Mid-20th Century 1950–1965 Valley Vista from Hilltop Overlook, 1950s Color Film 1950–1960 Twilight over Open Ocean, Mid-20th Century 1950–1965 Winter Forest Edge, Color Film, circa 1950s–1960s 1950–1965 Tropical River Valley with Dense Jungle Canopy, Southeast Asia, mid-20th century 1945–1970 Formal Carpet Bedding Display, Victoria BC Legislative Grounds, c.1960s 1958–1970 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 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
certain inferred low confidence