High-altitude surveys in the Mustang region have revealed a series of lithic alignments and carved 'spirit-stones' that pre-date the arrival of Buddhism in the Himalayas. These structures appear to have been central to the original indigenous rites that eventually merged into the Saga Dawa festival. The stones are etched with mountain deities and symbols of the lunar cycle, indicating a sophisticated understanding of seasonal transitions.
Evidence of animal sacrifices and butter offerings found in the soil around the stones suggests that these sites were the focus of intense devotion. This discovery allows historians to trace the evolution of Himalayan heritage from early animistic mountain worship to the complex religious festivals observed today.