EraDrag across the decades to brush a range
The short version The archive turns up 398 records, most of them around 1950s and Grand Canyon. 170 are confidently dated; the other 228 are educated guesses — about as precise as it sounds. 397 are free to use; 1 is restricted.
Rocky Canyon Vista with Alpine Lake, Western North America, circa 1950s 1950–1955 Pine Forest and Stone Tower, Mid-20th Century American Landscape 1940–1960 Birch trees and lake, Canadian Shield region, autumn 1940s–1950s 1945–1955 Rural riverside homestead, American Midwest, mid-20th century 1940–1960 Sandy bottom creek with winter trees, mid-20th century 1945–1965 Ornamental Pond with Water Lilies and Flowering Shrubs, circa 1950 1950–1955 Alpine Lake Valley from Mountain Ridge, Bavarian or Austrian Alps, 1960s 1955–1975 Forest and valley landscape, Central European highlands, circa 1970s-1980s 1970–1985 Mountain Vista Through Pine Forest, 1960s-1970s Kodachrome 1955–1975 Boreal Lake with Conifer Forest, Northern Temperate Region, circa 1960s 1955–1975 Azalea Garden in Pine Forest, American South, circa 1940s–1950s 1940–1955 Waterfall in Dense Forest, Kodachrome Slide, circa 1940s-1950s 1940–1955 Forested River Valley with Pasture, Appalachian Region, 1970s 1968–1978 Chalk Cliff Face, Likely English Coast, Mid-20th Century 1950–1960 Great Lakes Island Shore, Mid-20th Century 1950–1970 Lava Field with Birch Forest, Northern Landscape, Mid-20th Century 1945–1965 Boreal Lake and Forest Horizon, Circa 1960s 1958–1972 Winter Park Scene with Snow-Laden Conifers, Mid-20th Century 1950–1965 Willamette Valley Farmland, Oregon, 1960s 1960–1968 Rio Grande Valley, Mexico, 1960s—Irrigation and Development 1955–1975 Lake Tahoe from Pine Forest Overlook, circa 1960s 1958–1973 Alpine Meadow Ski Area, Winter Recreation, circa 1960s 1955–1970 Eroding Bluff with Shoreline Vegetation, Great Lakes Region, 1950s 1950–1959 Mountain Road in Chalk or Limestone Country, 1950s 1950–1959 Aerial View of Suburban Development, 1950s 1950–1959 Rolling farmland under cloud cover, 1950s 1950–1959 Tropical Shoreline at Dawn or Dusk, Mid-20th Century 1950–1965 Autumn Riverbank with Dead Log, ca. 1940s-1950s 1940–1955 Queen Elizabeth Park Overlook, Vancouver BC, c. 1960s 1958–1968 Reservoir and Forested Valley, Colour Slide, circa 1960s 1955–1975 Tidal Flats at Sunset, c. 1970s 1965–1985 Industrial Canal with Bridge, circa 1940s 1938–1948 Snow-Patched Mountain Range with Forested Valley, circa 1950s 1945–1965 Suspension Bridge Through Coastal Pines at Dusk 1950–1965 Waterfall in Conifer Forest, Pacific Northwest, circa 1950s 1945–1965 Lake with Distant Mountains, Color Slide, circa 1960s 1955–1975 English River Landscape, Mid-20th Century 1950–1970 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
certain inferred low confidence