Operation Touchstone

Touchstone
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, underground tunnel
Max. yield	150 kilotonnes of TNT (630 TJ)
Test series chronology
← Operation Musketeer Operation Cornerstone →

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The United States's Touchstone nuclear test series was a group of 13 nuclear tests conducted in 1987-1988. These tests followed the Operation Musketeer series and preceded the Operation Cornerstone series.

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