RADIOACTIVE - in 1965 the Central Intelligence Agency recruited 14 of America’s premier mountain-climbers and sent them on three exposition missions to place nuclear-powered instruments on two peaks of the Himalayas (https://www.washingtonpost.com/archive/politics/1978/04/13/cia-put-nuclear-spy-devices-in-himalayas/61cf72f2-dfdc-4586-a695-11a6d823a097/)
SPITI VALLEY - Spiti Valley is a cold desert mountain valley located high in the Himalayas in the north-eastern part of the northern Indian state of Himachal Pradesh, and an ancient cultural centre for Buddhists. In the valley, towards Ladhak, lies a secret village, populated by a fanatically secret group of less than 500 members, all of which are of pure Aryan blood. (https://en.wikipedia.org/wiki/Spiti_Valley)