| Touchstone | |
|---|---|
 A Soviet flag is raised next to an American flag at the Nevada Test Site as part of the Joint Verification Experiment | |
| Information | |
| Country | United States |
| Test site | NTS Area 12, Rainier Mesa; NTS Area 19, 20, Pahute Mesa; NTS, Areas 1–4, 6–10, Yucca Flat |
| Period | 1987–1988 |
| Number of tests | 13 |
| Test type | underground shaft, tunnel |
| Max. yield | 150 kilotonnes of TNT (630 TJ) |
| Test series chronology | |
The United States's Touchstone nuclear test series was a group of 13 nuclear tests conducted in 1987–1988. These tests [note 1] followed the Operation Musketeer series and preceded the Operation Cornerstone series.
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