Operation Latchkey

Operation Latchkey
Information
Country	United States
Test site	NTS Area 12, Rainier Mesa NTS Area 19, 20, Pahute Mesa NTS Areas 5, 11, Frenchman Flat NTS, Areas 1-4, 6-10, Yucca Flat Salmon Site, near Lumberton, Mississippi
Period	1966-1967
Number of tests	38
Test type	underground shaft, underground tunnel
Max. yield	870 kilotonnes of TNT (3,600 TJ)
Test series chronology
← Operation Flintlock (nuclear test) Operation Crosstie →

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Operation Latchkey was a series of 38 nuclear tests conducted by the United States in 1966-1967 at the Nevada Test Site. These tests followed the Operation Flintlock (nuclear test) series and preceded the Operation Crosstie series.

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