Shamanism holds that there art deities in mountains and rivers, and that these are eternal spirits. Shamans worship the spirits of the deceased, renowned shamans and those who have died accidentally. These are called “ongon”, ancestral spirits, and their portraits are located in special places, and are worshipped and given offer¬ings of food and drink.
In the past every Khoshuun( former administrative units) had mountains and ovoos which were worshipped in locally significant celebrations. From the earliest times, the mountains of Khentii- Khan (KhentiiAimag), Bogd – Khaan (Ulaanbaatar), Otgontenger (ZavkhanAimag) and Altai Range and other large mountains were wor shipped.