Operation Toggle United States' Toggle series tests and detonations United States' Toggle series tests and detonations

| Name_ | Date_time_UT | Local_time_zone | Location_ | Elevation_height | Delivery | Purpose | Yield | Venting | Notes_ |
|---|---|---|---|---|---|---|---|---|---|
| Rio Blanco - 1 | 17 May 1973 16:00:00.12 | MST (-7 hrs) | near Rifle, Colorado 39°47′36″N 108°22′02″W﻿ / ﻿39.79322°N 108.3672°W | 1,938 m (6,358 ft) - 1,758 m (5,768 ft) | underground shaft | peaceful research | 33 kt |  | Operation Plowshare - AEC/Gas industry enhancement experiment. Simultaneous, same hole. |
| Rio Blanco - 2 | 17 May 1973 16:00:00.12 | MST (-7 hrs) | near Rifle, Colorado 39°47′36″N 108°22′02″W﻿ / ﻿39.79322°N 108.3672°W | 1,938 m (6,358 ft) - 1,875 m (6,152 ft) | underground shaft | peaceful research | 33 kt |  | Project Plowshare - AEC/Gas industry enhancement experiment. Simultaneous, same hole. |
| Rio Blanco - 3 | 17 May 1973 16:00:00.12 | MST (-7 hrs) | near Rifle, Colorado 39°47′36″N 108°22′02″W﻿ / ﻿39.79322°N 108.3672°W | 1,938 m (6,358 ft) - 2,015 m (6,611 ft) | underground shaft | peaceful research | 33 kt |  | Project Plowshare - AEC/Gas industry enhancement experiment. Simultaneous, same hole. |