MUGU: A woman was buried to death when a clay mound caved in while she was digging up mud at Dhumallek, 15 minutes walk from the Rara Airport, in Mugu district this morning. According to police, the deceased is 25-year-old Kokila Bham of Karkibada VDC-1 of the district. The incident came to light after Bham's friends reported the incident to police.