Gerboise verte
1961 CE.
Shown on the map at 26.322°, -0.073°.
Gerboise Verte (French pronunciation: [ʒɛʁbwaz vɛʁt]; lit. 'Green Jerboa') is the codename for a French nuclear test conducted on 25 April 1961. The test took place at the Centre Saharien d'Expérimentations Militaires (CSEM), 50 km south of Reggane, Algeria, then a French department and was designed as an atmospheric test. This was the fourth French nuclear atmospheric test, after Gerboise Bleue, Gerboise Blanche, and Gerboise Rouge.
Text from the Wikipedia article Gerboise Verte, licensed CC BY-SA 4.0.