Himalayas is a mountain range in the Indian subcontinent which separates the Indo-Gangetic Plain from the Tibetan Plateau. This range is home to nine of the ten highest peaks on Earth, including the highest above sea level, Mount Everest. The Himalayas have profoundly shaped the cultures of South Asia. Many Himalayan peaks are sacred in both Buddhism and Hinduism. The Himalayas are bordered on the north by the Tibetan Plateau, on the south by the Indo-Gangetic Plain, on the northwest by the Karakoram and Hindu Kush ranges, and on the east by the Indian states of Assam and Arunachal Pradesh. The Hindu Kush, Karakoram and Himalayas form together the "Hindu Kush Himalayan Region" The western anchor of the Himalayas—Nanga Parbat—lies just south of the northernmost bend of the Indus River, while the eastern anchor—Namcha Barwa—is situated just west of the great bend of the Yarlung Tsangpo River. The Himalayas span five countries: India, Nepal, Bhutan, China (Tibet), and Pakistan, with the first three countries having sovereignty over most of the range.