France called the desert empty. Tens of thousands of people lived there. Between February 1960 and April 1961, at a military range near the oasis town of Reggane, France detonated its first four atomic bombs in the open air of the Tanezrouft, the flat, scorching plain the Tuareg call the land of thirst. The first blast made France the world's fourth nuclear power. The others refined the weapon. What the official histories were slower to record is what those explosions did to the families, herders, and soldiers who were close enough to feel the heat.
The Tanezrouft is one of the harshest stretches of the Sahara, a gravel-and-sand emptiness on the route that once carried caravans between the Maghreb and the cities of the Sahel. France chose it precisely because it looked deserted. In 1957 the government set aside roughly 108,000 square kilometers for nuclear experiments and built the Centre Saharien d'Expérimentations Militaires near Reggane, a 700-kilometer drive from the railhead at Colomb-Béchar. On paper it was a void. In reality it sat at the edge of a settled oasis region, and the winds that scour the Tanezrouft carry whatever is lifted into them for hundreds of kilometers.
The bombs were named for the jerboa, the small desert rodent that bounds across Saharan sand on outsized hind legs. In French the word is gerboise, and the first three carried the colors of the tricolor: Gerboise Bleue, Gerboise Blanche, Gerboise Rouge. Gerboise Bleue, fired on 13 February 1960 from a hundred-meter steel tower, yielded roughly seventy kilotons, more than three times the Hiroshima bomb and the most powerful first test any nation has ever conducted. The next three were deliberately smaller. By April 1961 the series was complete, and France turned to underground testing in the Hoggar mountains to the southeast.
France's Ministry of Defence later estimated that 27,000 Algerians were affected, though some 60,000 lived in the test region at the time. Many were never properly warned. Fallout drifted south and west; traces were detected as far away as Senegal, Sudan, and Burkina Faso. In the years that followed, people who had watched the mushroom clouds developed cancers of the skin and internal organs, and some lost their sight. In the 1970s, children in southern Algeria were born with malformed and atrophied limbs. The contamination did not announce itself. It settled into the sand, the wells, and the bodies of people who had no idea what had passed over them.
Decades on, the desert near Reggane still holds buried radioactive waste, much of it never properly cleaned up or fully mapped. In 2010 France passed the Morin Law, promising compensation to those harmed by its tests in Algeria and the Pacific. Critics have called it hollow: of thousands of potential Algerian claimants, only a single one had been compensated under it by the early 2020s, and the law was not even translated into Arabic until 2023. The atomic age that began here in a flash over the Tanezrouft is, for the families who live with its aftermath, still waiting to be acknowledged.
The Reggane test ground sits near 26.31°N, 0.06°W, in the open Tanezrouft south of the town of Reggane, Adrar Province, southwest Algeria. The nearest airport is Adrar (Touat-Cheikh Sidi Mohamed Belkebir, ICAO DAUA), roughly 150 km north. From altitude the landscape reads as a featureless tan plain meeting the dunes of the Grand Erg Occidental to the north; the old ground-zero craters were filled and are not visible. Skies here are typically cloudless with extreme visibility, though seasonal dust storms can reduce it to near zero within minutes.