Yemen is a country in the middle-east surrounded by Red Sea, Gulf of Aden and Arabian Sea. The country is mostly covered with deserts. Yemen map shows the physiography of the country. Natural vegetation, politically important zones and tourist places are also marked in the map of Yemen. Yemen flag represents unity of the Arab community and comes in the tri-color of black, white and red. Population of Yemen is 22,230,531, according to an official estimate of July 2007. There are 19 Governorates within the administrative premises of Yemen. Ship repairing, production of crude oil, handicrafts, petroleum refining and cement are some of the industries that generate revenue for Yemen. Livestock and agriculture are also considered as significant economic activities.