Question: Which mountain range separates Kinnaur and Spiti from the region where Nawang Khechog was born?

full_context: Document 1: Nathu La: Nathu La (Devanagari नाथू ला; Tibetan: རྣ ་ ཐོས ་ ལ ་, IAST: Nāthū Lā, Chinese: 乃堆拉山口; pinyin: Nǎiduīlā Shānkǒu) is a mountain pass in the Himalayas. It connects the Indian state of Sikkim with China's Tibet Autonomous Region. The pass, at 4,310 m (14,140 ft) above mean sea level, forms a part of an offshoot of the ancient Silk Road. Nathu means ``listening ears ''and La means`` pass'' in Tibetan. On the Indian side, the pass is 54 km (34 mi) east of Gangtok, the capital of Sikkim. Only citizens of India can visit the pass, and then only after obtaining a permit in Gangtok.
Document 2: Tibet: After the Dalai Lama's government fled to Dharamsala, India, during the 1959 Tibetan Rebellion, it established a rival government-in-exile. Afterwards, the Central People's Government in Beijing renounced the agreement and began implementation of the halted social and political reforms. During the Great Leap Forward, between 200,000 and 1,000,000 Tibetans died, and approximately 6,000 monasteries were destroyed during the Cultural Revolution. In 1962 China and India fought a brief war over the disputed South Tibet and Aksai Chin regions. Although China won the war, Chinese troops withdrew north of the McMahon Line, effectively ceding South Tibet to India.
Document 3: Tibet: Muslims have been living in Tibet since as early as the 8th or 9th century. In Tibetan cities, there are small communities of Muslims, known as Kachee (Kache), who trace their origin to immigrants from three main regions: Kashmir (Kachee Yul in ancient Tibetan), Ladakh and the Central Asian Turkic countries. Islamic influence in Tibet also came from Persia. After 1959 a group of Tibetan Muslims made a case for Indian nationality based on their historic roots to Kashmir and the Indian government declared all Tibetan Muslims Indian citizens later on that year. Other Muslim ethnic groups who have long inhabited Tibet include Hui, Salar, Dongxiang and Bonan. There is also a well established Chinese Muslim community (gya kachee), which traces its ancestry back to the Hui ethnic group of China.
Document 4: Tibet: The Indus and Brahmaputra rivers originate from a lake (Tib: Tso Mapham) in Western Tibet, near Mount Kailash. The mountain is a holy pilgrimage site for both Hindus and Tibetans. The Hindus consider the mountain to be the abode of Lord Shiva. The Tibetan name for Mt. Kailash is Khang Rinpoche. Tibet has numerous high-altitude lakes referred to in Tibetan as tso or co. These include Qinghai Lake, Lake Manasarovar, Namtso, Pangong Tso, Yamdrok Lake, Siling Co, Lhamo La-tso, Lumajangdong Co, Lake Puma Yumco, Lake Paiku, Lake Rakshastal, Dagze Co and Dong Co. The Qinghai Lake (Koko Nor) is the largest lake in the People's Republic of China.
Document 5: Dorji Wangchuk: Between 1992 and 1996, he taught Tibetan Buddhist monks and nuns in monastic seminaries in India. Since 1998, he has been teaching and researching at the University of Hamburg in various capacities. He also taught a term each at the University of Copenhagen, McGill University, and Renmin University of China. Currently he is a professor for Tibetology (“Tibetan (Buddhist) Studies”) at the Department of Indian and Tibetan Studies, Asien-Afrika-Institut, Universität Hamburg. He is also the founder and director of the Khyentse Center for Tibetan Buddhist Textual Scholarship (KC-TBTS), a research center within the Department of Indian and Tibetan Studies, Asien-Afrika-Institut, Universität Hamburg.
Document 6: Mussoorie: Happy Valley has a small Tibetan temple. This was the first Tibetan temple built in India. The temple was constructed in 1960 by the Tibetan refugees. Lal Tibba is another tourist spot of Mussoorie. Located upwards of main Mussoorie in the cantonment area of Landour, the most appropriate way to explore is to drive up to Char Dukaan and the take the short hike to Lal Tibba. Essentially a gazing spot that offers majestic views of the Himalayas.
Document 7: Tibet: Tibet (i/tᵻˈbɛt/; Wylie: Bod, pronounced [pʰø̀ʔ]; Chinese: 西藏; pinyin: Xīzàng) is a region on the Tibetan Plateau in Asia. It is the traditional homeland of the Tibetan people as well as some other ethnic groups such as Monpa, Qiang and Lhoba peoples and is now also inhabited by considerable numbers of Han Chinese and Hui people. Tibet is the highest region on Earth, with an average elevation of 4,900 metres (16,000 ft). The highest elevation in Tibet is Mount Everest, earth's highest mountain rising 8,848 m (29,029 ft) above sea level.
Document 8: Rohtang Pass: Rohtang Pass () (Bhoti: རོ་ཐང་། Rohtang , lit: རོ་ (Ro)- corpse, ཐང་། (thang)- plain/field due to people working in CBRE dying in bad weather trying to cross the pass) (elevation ), is a high mountain pass on the eastern Pir Panjal Range of the Himalayas around from Manali. It connects the Kullu Valley with the Lahaul and Spiti Valleys of Himachal Pradesh, India.
Document 9: Spiti Valley: The Spiti Valley is a cold desert mountain valley located high in the Himalaya mountains in the north - eastern part of the Indian state of Himachal Pradesh. The name ``Spiti ''means`` The Middle Land'', i.e. the land between Tibet and India.
Document 10: Himalayas: In Hinduism, the Himalayas have been personified as the king of all Mountain – "Giriraj Himavat", father of Ganga and Parvati (form of Adi Shakti Durga).A number of Vajrayana Buddhist sites are situated in the Himalayas, in Tibet, Bhutan and in the Indian regions of Ladakh, Sikkim, Arunachal Pradesh, Spiti and Darjeeling. There were over 6,000 monasteries in Tibet, including the residence of the Dalai Lama. Bhutan, Sikkim and Ladakh are also dotted with numerous monasteries. The Tibetan Muslims have their own mosques in Lhasa and Shigatse.
Document 11: Himachal Pradesh: Due to extreme variation in elevation, great variation occurs in the climatic conditions of Himachal . The climate varies from hot and subhumid tropical in the southern tracts to, with more elevation, cold, alpine, and glacial in the northern and eastern mountain ranges. The state has areas like Dharamsala that receive very heavy rainfall, as well as those like Lahaul and Spiti that are cold and almost rainless. Broadly, Himachal experiences three seasons: summer, winter, and rainy season. Summer lasts from mid-April till the end of June and most parts become very hot (except in the alpine zone which experiences a mild summer) with the average temperature ranging from 28 to 32 °C (82 to 90 °F). Winter lasts from late November till mid March. Snowfall is common in alpine tracts (generally above 2,200 metres (7,218 ft) i.e. in the higher and trans-Himalayan region).
Document 12: Nawang Khechog: Nawang was born in Tibet, but following the Chinese invasion of 1949/1950, his family moved to India, where Nawang studied meditation and Buddhist philosophy. He spent eleven years as a monk, including four years as a hermit meditating in the Himalayan foothills under the guidance of the Dalai Lama.
Document 13: Tibet: Religion is extremely important to the Tibetans and has a strong influence over all aspects of their lives. Bön is the ancient religion of Tibet, but has been almost eclipsed by Tibetan Buddhism, a distinctive form of Mahayana and Vajrayana, which was introduced into Tibet from the Sanskrit Buddhist tradition of northern India. Tibetan Buddhism is practiced not only in Tibet but also in Mongolia, parts of northern India, the Buryat Republic, the Tuva Republic, and in the Republic of Kalmykia and some other parts of China. During China's Cultural Revolution, nearly all Tibet's monasteries were ransacked and destroyed by the Red Guards. A few monasteries have begun to rebuild since the 1980s (with limited support from the Chinese government) and greater religious freedom has been granted – although it is still limited. Monks returned to monasteries across Tibet and monastic education resumed even though the number of monks imposed is strictly limited. Before the 1950s, between 10 and 20% of males in Tibet were monks.
Document 14: Kathmandu: Legendary Princess Bhrikuti (7th-century) and artist Araniko (1245 - 1306 AD) from that tradition of Kathmandu valley played a significant role in spreading Buddhism in Tibet and China. There are over 108 traditional monasteries (Bahals and Bahis) in Kathmandu based on Newar Buddhism. Since the 1960s, the permanent Tibetan Buddhist population of Kathmandu has risen significantly so that there are now over fifty Tibetan Buddhist monasteries in the area. Also, with the modernization of Newar Buddhism, various Theravada Bihars have been established.
Document 15: Arunachal Pradesh: The NEFA (North-East Frontier Agency) was created in 1954. The issue was quiet for nearly a decade, with a period of cordial Sino-Indian relations, but its resurgence in 1960 was a factor leading to the Sino-Indian border conflict of 1962. During the war in 1962, China captured most of the area of Arunachal Pradesh. However, China soon declared victory, withdrew back to the McMahon Line and returned Indian prisoners of war in 1963. It is believed by some commentators that Mao wanted to intimidate India for its continued support of the Dalai Lama, and for its stance on Tibet being an independent state and not a Chinese territory. There was a significant influx of Tibetan refugees into India, primarily to Dharamshala in North India.
ground_truth: Himalaya mountains
sub_queries: Nawang Khechog >> place of birth Answer: Tibet
which mountain range separates kinnaur and spiti from Tibet Answer: Himalaya mountains