Hill people is a general term for people who live in hills and mountains. There are hill people around the world, many of whom live in stone houses and herd goats, sheep or camelids or have small farms. Musical instruments of the hill people, such as various forms of bagpipe and horn, are notable for their ability to be heard at great distances. Hill people are often divided into tribes that have a tradition of feuding among each other while resisting control by any central government. Often the hill people are minorities in their countries, and are divided by political borders.