Tsar Bomba C), north of the Arctic Circle over the Novaya Zemlya archipelago in the Arctic Ocean. The bomb was dropped from an altitude of ; it was designed to detonate at a height of over the land surface ( above sea level) by barometric sensors. The original, November 1961, United States Atomic Energy Commission estimate of the yield was 55–60 megatons, but since 1992, all Russian sources have stated its yield as 58.6 megatons. First secretary Khrushchev warned in a filmed speech to the Supreme Soviet of the existence of a 100-megaton bomb (technically the design was capable of this yield.)
Pay-Khoy Ridge do not have permanent population. The closest permanent settlements are Amderma and Ust-Kara. The ridge is located in tundra, to the north of the tree line. The Pay-Khoy ridge forms a curved orogen together with the Ural Mountains, the Vaygach Island and the Novaya Zemlya archipelago. The Pay-Khoy and Novaya Zemlya are younger than the orogeny that formed the Ural mountains. They were formed during the Cimmerian Orogeny between the Late Triassic and Early Jurassic. Pay-Khoy Ridge The Pay-Khoy ridge () is a mountain range at the northern end of the Ural Mountains. It lies within the Nenets Autonomous Okrug.