The Mesopotamian Marshes, also known as the Iraqi Marshes, are a wetland area located in Southern Iraq and in southwestern Iran. The marshes are primarily located on the floodplains of the Euphrates and Tigris rivers bound by the cities of Basra, Nasiriyah, Amarah and a portion of southwestern Iran. Historically the marshlands, mainly composed of the separate but adjacent Central, Hawizeh and Hammar Marshes, used to be the largest wetland ecosystem of Western Eurasia. The unique wetland landscape is home to the Marsh people, descended from the Ur, Sumer and Babylon civilisations, who have developed a unique culture tightly coupled to the landscape – harvesting reeds and rice, fishing and herding water buffalo. Draining of portions of the marshes began in the 1950s and continued through the 1970s to reclaim land for agriculture and oil exploration. In the late 1980s and 1990s, during the presidency of Saddam Hussein, this work was expanded and accelerated to evict Marsh people from the marshes. Before 2003, the marshes were drained to 10% of their original size. After the American overthrow of Hussein in 2003, the marshes have partially recovered but drought along with upstream dam construction and operation in Turkey, Syria and Iran have hindered the process. Since 2016 the Mesopotamian marshes have been listed as an UNESCO Heritage Site. Geography As their name suggests, the Mesopotamian Marshes are located in the larger region which used to be called Mesopotamia. Modern day Mesopotamia is now occupied by Iraq, parts of eastern Syria, south-eastern Turkey, and southwest Iran. The marshes lie mostly within southern Iraq and a portion of southwestern Iran. Originally covering an area of and divided into three major areas, the Central Marshes lie between the Tigris and Euphrates, while the Hammar Marshes lie south of the Euphrates and the Hawizeh Marshes are bound east of the Tigris. Before the 2003 Invasion of Iraq, about 90% of the marshes had been drained. The marshes lie on a flat alluvial plain, as the Euphrates decreases only in elevation during its last while the Tigris falls . This delta provides an environment that allows the Tigris and Euphrates to meander, forming distributaries. The Euphrates has often terminated near Nasiriyah into the Hammar Marshes as its flow slows. The Tigris can distribute some of its flow into the Central and Hawizeh marshes as it slows near Amarah. Downstream of Amarah, though, several of its tributaries