United States' Toggle series tests and detonations
Name[note 2] Date time (UT) Local time zone[note 3] Location[note 4] Elevation + height[note 5] Delivery[note 6] Purpose[note 7] Device[note 8] Yield[note 9] Venting[note 10] References Notes
Diamond Sculls 20 July 1972 17:00:16.16 PST (-8 hrs)
NTS Area U12t.02 37°12′52″N 116°11′02″W / 37.21439°N 116.18382°W / 37.21439; -116.18382 (Diamond Sculls) 2,113 m (6,932 ft) - 419.4 m (1,376 ft) underground tunnel weapon effect 21 kt [2][3][4][5][1]
Atarque 25 July 1972 13:00:30.06 PST (-8 hrs)
NTS Area U3ht 37°00′45″N 116°00′57″W / 37.01247°N 116.01577°W / 37.01247; -116.01577 (Atarque) 1,182 m (3,878 ft) - 294.2 m (965 ft) underground shaft weapons development 1.5 kt Venting detected [6][4][5][1]
Cebolla - 1 (with Cuchillo,Solano) 9 August 1972 13:03:11.04 PST (-8 hrs)
NTS Area U3jc 37°00′26″N 116°01′11″W / 37.00717°N 116.01976°W / 37.00717; -116.01976 (Cebolla - 1) 1,180 m (3,870 ft) - 287 m (942 ft) underground shaft weapons development less than 5 kt Venting detected [6][4][5][1] Simultaneous, separate holes.
Cuchillo - 2 (with Cebolla, Solano) 9 August 1972 13:03:11.04 PST (-8 hrs)
NTS Area U3jt 37°00′13″N 116°01′11″W / 37.00373°N 116.01982°W / 37.00373; -116.01982 (Cuchillo - 2) 1,179 m (3,868 ft) - 198.81 m (652.3 ft) underground shaft weapons development less than 5 kt [4][5][1] Simultaneous, separate holes.
Solano - 3 (with Cebolla,Cuchillo 9 August 1972 13:03:11.04 PST (-8 hrs)
NTS Area U3jx 37°00′11″N 116°01′03″W / 37.00315°N 116.01757°W / 37.00315; -116.01757 (Solano - 3) 1,179 m (3,868 ft) + underground shaft safety experiment less than 5 kt [4][5][1] Simultaneous, separate holes.
Oscuro 21 September 1972 15:00:30.19 PST (-8 hrs)
NTS Area U7z 37°04′55″N 116°02′15″W / 37.08201°N 116.03742°W / 37.08201; -116.03742 (Oscuro) 1,225 m (4,019 ft) - 560.21 m (1,838.0 ft) underground shaft weapons development 160 kt [2][7][4][5][1]
Delphinium 26 September 1972 14:00:30.16 PST (-8 hrs)
NTS Area U2dp 37°07′17″N 116°05′12″W / 37.12135°N 116.08667°W / 37.12135; -116.08667 (Delphinium) 1,276 m (4,186 ft) - 295.66 m (970.0 ft) underground shaft weapons development 15 kt [7][4][5][1]
Akbar 9 November 1972 15:00:15.16 PST (-8 hrs)
NTS Area U10ax 37°09′43″N 116°02′03″W / 37.16202°N 116.03405°W / 37.16202; -116.03405 (Akbar) 1,295 m (4,249 ft) - 267 m (876 ft) underground shaft weapons development 600 t [3][4][5][1]
Arsenate 9 November 1972 18:00:15.16 PST (-8 hrs)
NTS Area U9ci 37°07′17″N 116°02′00″W / 37.12151°N 116.03326°W / 37.12151; -116.03326 (Arsenate) 1,268 m (4,160 ft) - 250.24 m (821.0 ft) underground shaft weapons development 600 t Venting detected, 12 Ci (440 GBq) [6][3][4][5][1]
Canna-Limoges - 2 17 November 1972 18:00:00.16 PST (-8 hrs)
NTS Area U9itsyz26 37°08′22″N 116°02′00″W / 37.13953°N 116.03324°W / 37.13953; -116.03324 (Canna-Limoges - 2) 1,273 m (4,177 ft) + underground shaft safety experiment less than 20 kt [4][5][1] Simultaneous, same hole.
Canna-Umbrinus - 1 17 November 1972 18:00:00.16 PST (-8 hrs)
NTS Area U9itsyz2 37°08′22″N 116°02′00″W / 37.13953°N 116.03324°W / 37.13953; -116.03324 (Canna-Umbrinus - 1) 1,273 m (4,177 ft) - 213.36 m (700.0 ft) underground shaft weapons development less than 20 kt [4][5][1] Simultaneous, same hole.
Tuloso 12 December 1972 16:00:30.04 PST (-8 hrs)
NTS Area U3gi 37°01′53″N 116°01′19″W / 37.03128°N 116.02196°W / 37.03128; -116.02196 (Tuloso) 1,189 m (3,901 ft) - 271.09 m (889.4 ft) underground shaft weapons development 200 t [3][4][5][1]
Solanum 14 December 1972 15:00:30.16 PST (-8 hrs)
NTS Area U9itsw24 37°08′17″N 116°02′08″W / 37.13804°N 116.03559°W / 37.13804; -116.03559 (Solanum) 1,267 m (4,157 ft) - 201.17 m (660.0 ft) underground shaft weapons development less than 20 kt Venting detected [6][4][5][1]
Flax-Source 21 December 1972 20:00:15.24 PST (-8 hrs)
NTS Area U2dj 37°08′24″N 116°05′03″W / 37.13997°N 116.08415°W / 37.13997; -116.08415 (Flax-Source) 1,296 m (4,252 ft) - 440 m (1,440 ft) underground shaft weapons development 20 kt [2][7][5][1]
Flax-Backup - 2 21 December 1972 20:15:24.35 PST (-8 hrs)
NTS Area U2dj 37°08′24″N 116°05′03″W / 37.13997°N 116.08415°W / 37.13997; -116.08415 (Flax-Backup - 2) 1,296 m (4,252 ft) + underground shaft weapon effect less than 20 kt [4][5][1]
Flax-Test - 1 21 December 1972 20:15:24.35 PST (-8 hrs)
NTS Area U2dj 37°08′24″N 116°05′03″W / 37.13997°N 116.08415°W / 37.13997; -116.08415 (Flax-Test - 1) 1,296 m (4,252 ft) - 688.85 m (2,260.0 ft) underground shaft weapon effect 20 kt [4][5][1]
Alumroot 14 February 1973 15:00:30.16 PST (-8 hrs)
NTS Area U9cj 37°08′49″N 116°03′03″W / 37.14704°N 116.05096°W / 37.14704; -116.05096 (Alumroot) 1,264 m (4,147 ft) - 182.88 m (600.0 ft) underground shaft weapons development less than 20 kt [4][5][1]
Miera 8 March 1973 16:00:10.19 PST (-8 hrs)
NTS Area U7ad 37°06′13″N 116°01′39″W / 37.10354°N 116.02759°W / 37.10354; -116.02759 (Miera) 1,279 m (4,196 ft) - 568.39 m (1,864.8 ft) underground shaft weapons development 67 kt I-131 venting detected, 0 [8][6][7][4][5][1]
Gazook 23 March 1973 20:00:15.17 PST (-8 hrs)
NTS Area U2do 37°07′02″N 116°05′16″W / 37.11727°N 116.08779°W / 37.11727; -116.08779 (Gazook) 1,274 m (4,180 ft) - 326.14 m (1,070.0 ft) underground shaft weapons development 200 t Venting detected, 12 Ci (440 GBq) [6][3][4][5][1]
Natoma 5 April 1973 14:00:50.16 PST (-8 hrs)
NTS Area U10aw 37°10′40″N 116°03′17″W / 37.17783°N 116.05476°W / 37.17783; -116.05476 (Natoma) 1,283 m (4,209 ft) - 243.84 m (800.0 ft) underground shaft weapons development less than 20 kt [4][5][1]
Angus - 1 (with Velarde) 25 April 1973 22:00:25.03 PST (-8 hrs)
NTS Area U3jg 37°00′17″N 116°01′45″W / 37.00483°N 116.0292°W / 37.00483; -116.0292 (Angus - 1) 1,180 m (3,870 ft) - 452.63 m (1,485.0 ft) underground shaft weapons development 9 kt Venting detected, 0.6 Ci (22 GBq) [2][8][6][4][5][1] Simultaneous, separate holes.
Velarde - 2 (with Angus) 25 April 1973 22:00:25.07 PST (-8 hrs)
NTS Area U3jk 36°59′37″N 116°01′18″W / 36.99367°N 116.02173°W / 36.99367; -116.02173 (Velarde - 2) 1,176 m (3,858 ft) - 277 m (909 ft) underground shaft weapons development 8 kt Venting detected, 250 Ci (9,200 GBq) [9][6][4][5][1] Simultaneous, separate holes.
Colmor 26 April 1973 15:00:15.04 PST (-8 hrs)
NTS Area U3hv 37°00′44″N 116°01′15″W / 37.01214°N 116.0207°W / 37.01214; -116.0207 (Colmor) 1,182 m (3,878 ft) - 245.81 m (806.5 ft) underground shaft weapons development 500 t Venting detected [6][3][4][5][1]
Starwort 26 April 1973 17:00:15.16 PST (-8 hrs)
NTS Area U2bs 37°07′23″N 116°03′34″W / 37.12301°N 116.05937°W / 37.12301; -116.05937 (Starwort) 1,261 m (4,137 ft) - 563.88 m (1,850.0 ft) underground shaft weapons development 90 kt Venting detected, 10 Ci (370 GBq) [8][6][7][4][5][1]
Mesita 9 May 1973 13:00:30.04 PST (-8 hrs)
NTS Area U3jd 37°00′23″N 116°01′01″W / 37.00626°N 116.01681°W / 37.00626; -116.01681 (Mesita) 1,180 m (3,870 ft) - 149.25 m (489.7 ft) underground shaft weapons development less than 20 kt Venting detected [6][4][5][1]
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 / 39.79322; -108.3672 (Rio Blanco - 1) 1,938 m (6,358 ft) - 1,758 m (5,768 ft) underground shaft peaceful research 33 kt [5][1] 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 / 39.79322; -108.3672 (Rio Blanco - 2) 1,938 m (6,358 ft) - 1,875 m (6,152 ft) underground shaft peaceful research 33 kt [5][1] 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 / 39.79322; -108.3672 (Rio Blanco - 3) 1,938 m (6,358 ft) - 2,015 m (6,611 ft) underground shaft peaceful research 33 kt [5][1] Project Plowshare - AEC/Gas industry enhancement experiment. Simultaneous, same hole.
Cabresto 24 May 1973 13:00:30.04 PST (-8 hrs)
NTS Area U7h 37°04′41″N 116°01′54″W / 37.078°N 116.03164°W / 37.078; -116.03164 (Cabresto) 1,228 m (4,029 ft) - 197.89 m (649.2 ft) underground shaft weapons development 15 kt [4][5][1]
Kashan 24 May 1973 14:00:30.16 PST (-8 hrs)
NTS Area U10av 37°09′44″N 116°03′25″W / 37.16222°N 116.05689°W / 37.16222; -116.05689 (Kashan) 1,277 m (4,190 ft) - 265.18 m (870.0 ft) underground shaft weapons development 2 kt Venting detected, 270 Ci (10,000 GBq) [6][3][4][5][1]
Dido Queen 5 June 1973 17:00:00.17 PST (-8 hrs)
NTS Area U12e.14 37°11′06″N 116°12′58″W / 37.18498°N 116.21599°W / 37.18498; -116.21599 (Dido Queen) 2,247 m (7,372 ft) - 391.36 m (1,284.0 ft) underground tunnel weapon effect 18 kt [2][3][4][5][1]
Almendro 6 June 1973 13:00:00.08 PST (-8 hrs)
NTS Area U19v - 37°14′42″N 116°20′49″W / 37.245°N 116.34691°W / 37.245; -116.34691 (Almendro) 2,069 m (6,788 ft) - 1,066.52 m (3,499.1 ft) underground shaft weapons development 250 kt [2][3][4][5][1]
Potrillo 21 June 1973 14:00:45.08 PST (-8 hrs)
NTS Area U7af 37°05′31″N 116°01′41″W / 37.09199°N 116.02809°W / 37.09199; -116.02809 (Potrillo) 1,255 m (4,117 ft) - 567.02 m (1,860.3 ft) underground shaft weapons development 58 kt Venting detected [2][6][4][5][1]
Portulaca 28 June 1973 19:15:12.4 PST (-8 hrs)
NTS Area U2bv 37°08′54″N 116°05′12″W / 37.14837°N 116.08673°W / 37.14837; -116.08673 (Portulaca) 1,311 m (4,301 ft) - 466.34 m (1,530.0 ft) underground shaft weapons development 24 kt I-131 venting detected, 0 [8][3][7][4][5][1]
Silene 28 June 1973 19:00:45.16 PST (-8 hrs)
NTS Area U9ck 37°06′53″N 116°02′30″W / 37.11486°N 116.04179°W / 37.11486; -116.04179 (Silene) 1,254 m (4,114 ft) - 198.12 m (650.0 ft) underground shaft weapons development 5 t [3][4][5][1]