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A blast raises clouds of dust in the canyon

Thick, rolling clouds of pale dust and darker smoke fill the lower part of the gorge and climb the rock walls; above them a road and a line of structures follow the contour of the slope. The clouds appear to rise from a blast in the canyon; the walls and the tunnels were opened with dynamite, and the work went on day and night.

Period
c. 1931–1933
Credit
US National ArchivesPublic Domain (NARA) · Digitalisierung und Bearbeitung: © zb Media GmbH

Specifications

Clip name
HFE004510
Length
0' 17"
Aspect Ratio
16:9
Frames per Second
24 fps
Chroma Subsampling
yuv422p10le
Resolution
1920 × 1080
Format
MOV
File Size
379,144,660 bytes
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