West Sumatra bounded in the north by the province of North Sumatra, in the west by the Indian ocean, in the south by the provinces of Bengkulu and Jambi, and in the east by Riau province.
85% of the population are Minangkabau, notable in the annals of anthropology as the world's largest matriarchal society:
children take their names from their mother's side and, on marriage,
the husband moves into the wife's family. Culturally, the hallmarks of
Minangkabau culture are their famously spicy food, served all around
Indonesia in Padang restaurants (named after the capital), and the soaring-eaved rumah gadang house, shaped like a series of buffalo horns.