- Source: Mount Lazarev
Mount Lazarev (Гора Лазарева, "Gora Lazareva") is a massif on the northern portion of Yuzhny Island, Novaya Zemlya, in Russia. It was used for many Soviet nuclear tests, starting with the first underground nuclear test on Novaya Zemlya, 18 September 1964, which may have resulted in tired mountain syndrome.