Excavation of North American Aerospace Defense Command (NORAD) combat operation center (COC) on Cheyenne Mountain in Colorado, United States. Workmen wire on master blasting switch box. Roof fencing operation. Men operate gunite machine. Materials being mixed. Men make cement forms and raise it to tunnel entrance. Workman smoothen out green cement over archway.
This historic stock footage available in HD video. View pricing below video player.
| Type | Size | Price (USD) Standard License |
Price (USD) Premium License |
|---|---|---|---|
| HD Master, Broadcast-ready (1920x1080, unmarked) | 1578 MB | $210.00 | $285.00 |
| HD Screener (1920x1080, full-res with timecode) | 1578 MB | FREE or $4.00 (see below) | - |
| Proxy (320x240, low-resolution, watermarked) | 25 MB | FREE or $4.00 (see below) | - |
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