Mamou is a city in a valley of the Fouta Djallon area of Guinea. It grew aroun the railway line from Conakry to Kankan and soon became the local administrative headquarters. Its main industry used to be until the 1990s decade meat processing, while it also acts as an important transport hub. All vehicles going to the Fouta Jallon, the forest region or Haute Guinée have to travel through Mamou.