The Southeastern Anatolia Project (, GAP) is a multi-sector integrated regional development project based on the concept of sustainable development for the 9 million people (2005) living in the Southeastern Anatolia region of Turkey. GAP's basic aim is to eliminate regional development disparities by raising people's income level and living standards; and to contribute to such national development targets as social stability and economic growth by enhancing the productive and employment generating capacity of the rural sector. The total cost of the project is 42.1 billion Turkish lira (TL) (2010 adjusted price), of which 30.6 billion TL of this investment was realized at the end of 2010. The real investment (corrected value) was 72.6 or the end of 2010. The project area covers nine provinces (Adiyaman, Batman, Diyarbakir, Gaziantep, Kilis, Siirt, Sanliurfa, Mardin, and Sirnak) which are located in the basins of the Euphrates and Tigris and in Upper Mesopotamia.