Sedan Crater is the scar from the 6 July 1962 Plowshare nuclear excavation test on Yucca Flat at the Nevada National Security Site. The ~1,280-ft-wide, ~320-ft-deep bowl was meant to prove nuclear earth-moving for canals and harbors. Listed on the National Register in 1994, it is open only on official DOE/NNSA public bus tours when those run—no private drive-up access.
Field facts
| Region | Nye County, NV |
|---|---|
| Coordinates | 37.1769, -116.0461 |
| Listed | 1994-03-21 |
| NRHP Ref# | 94000183 |
| Category | Site |
| Significance | Invention |
| Era | 1962 |
| Access | Restricted NNSS; public bus tours when DOE/NNSA offers them (often suspended—check nnss.gov) |
| Fee | Free |
| Notable | Largest U.S. nuclear excavation crater; Project Plowshare / Storax Sedan |
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