EraDrag across the decades to brush a range
The short version The archive turns up 610 records, most of them around 1950s and Grand Canyon. 343 are confidently dated; the other 267 are educated guesses — about as precise as it sounds. 609 are free to use; 1 is restricted.
Mammoth Hot Spring Terraces, Yellowstone National Park, circa 1940s 1950–1959 Mountain Valley Viewed from a Tunnel Window, Mid-20th Century 1945–1965 Appalachian石炭地域の鉱山坑口と測量機器、1930年代 1930–1939 Alcatraz Island from the Bay, San Francisco, 1950s 1950–1959 Sandstone Canyon Wall with Natural Arch, American Southwest, 1950s 1950–1959 Accidental Exposure, Rural American Highway, 1950s 1950–1959 · 1950s Formal Garden Border, ca. 1940s–1950s 1940–1955 Desert Landscape with Eroded Butte, Mid-20th Century Color Survey 1950–1965 Aerial View of Formal Gardens on a River Peninsula, American South, 1950s 1950–1959 Eroded Hillside with Highway Cut, 1950s America 1950–1959 Egrets in a Florida Spring, 1950s 1950–1959 Morning Glory Vines on House, 1950s 1950–1959 Rocky Shoreline with Waves, 1950s 1950–1959 Mountain Valley in Winter, 1950s 1950–1959 Japanese Iris Garden, 1950s 1950–1959 Suburban Backyard with Decorative Flamingos, 1950s 1950–1959 Alpine Wildflowers, 1950s 1950–1959 Mountain Stream with Overhanging Deciduous Growth, 1950s 1950–1959 Suburban Lawn, 1950s 1950–1959 Columbine and Mountain Flora, 1950s Alpine Study 1950–1959 Basalt Quarry or Strip Mine, 1950s American West 1950–1959 Field Scabious in Bloom, 1950s Garden Study 1950–1959 Rock Formation in Mediterranean Landscape, 1950s 1950–1959 Rapids and Outbuilding, 1950s 1950–1959 Mountain Valley in Snow, 1950s Alpine Region 1950–1959 Frozen Shore with Wrecked Vessels, Great Lakes, circa 1950s 1950–1959 沿岸平野を見下ろす緑の丘陵、航空写真、1960年代 1958–1972 Formal Garden with Massed Plantings, Mid-20th Century 1945–1965 倒木を伴う山岳林, Western Wilderness, 1950年代頃 1950–1960 地質調査または教育的探検隊、バッドランズ露頭、20世紀中盤 1945–1965 アルプスの峰、氷河性スクリー、亜高山帯林、太平洋岸北西部、20世紀中盤 1940–1955 Mount Shasta 北からの眺め、1940年代 1940–1950 雪中の焼けた森、北部ボリアル地域、1940年代 1940–1950 北方森林河川、白樺とシダ植物林、20世紀中盤 1950–1965 航空機からの北カナダの北方林と湖、1950年代頃 1948–1965 水没した難破船、潮間帯、1950年代頃 1950–1965 高砂漠盆地とセージブラッシュ、遠くの山脈、1950年代頃 1950–1960 フッドゥー層流れ、高砂漠南西部、1940年代~1950年代頃 1940–1955 山の眺望と牧草地および構造物、1950年代頃 1950–1965 Sierra Nevada Forest, California, circa 1950年代 1948–1958 コロラド川渓谷とユタ砂漠の隆起、アリゾナまたはネバダ州、1950年代 1950–1960 Mountain River Canyon, Western Conifer Forest, circa 1950s 1948–1958 高地砂漠草原とトウヒ林縁、Pacific Northwest、1960年代頃 1960–1975 Mountain Pass with Power Lines, circa 1950s 1948–1955 山峠道路建設、太平洋岸北西部、1930年代~1940年代 1930–1945 トルコ石色の水を持つ石灰岩採石場、1940年代頃 1938–1952 夕暮れ時の停泊船団、太平洋岸北西部の湖 1960–1978 カッパドキア、トルコ、侵食地形と遺跡および耕作地 1950–1965
certain inferred low confidence