Hodh Ech Chargui (, "Eastern Basin Region") is a large region in eastern Mauritania, with an area of 182,700 km2. Its capital is Néma, but the largest town, in Bassiknou Department, is Fassala (or Vassale) at the extreme southeast of Mauritania, with 65,927 inhabitants at the 2013 census. The region borders the Mauritanian regions of Adrar, Tagant and Hodh El Gharbi to the west and Mali to the east and south. The Aoukar basin, which formerly gave name to a greater region, is located in the western part of Hodh Ech Chargui. As of 2013, the population of the region was 430,668, compared to 363,071 in 2011. There were 47.71 percent females and 52.29 percent males. As of 2008, the activity rate was 61.50 and economic dependency ratio was 1.11. As of 2008, the literacy rate for people aged 15 years and over was 53.90. The local government is headed by an elected district representative, while the elections for the local government are conducted every five years. Due to the political instability, the last elections were held in 2006. Geography Mauritania is mostly covered with desert, with only its western regions around the coast of Atlantic Ocean having some vegetation. There are some oasis in the desert regions. Since it is a desert, there are large shifting dunes forming temporary ranges. The average elevation is around above the mean sea level. The rainfall in the northern regions closer to the Tropic of Cancer receives around of annual rainfall compared to the southern portions that receives around . The average temperature is , while during the night it reaches . Due to the geography, the inhabitants historically, have been nomadic. In modern times, people have migrated to urban centres during the drought in 1970 and 1980. There are a few sedentary cultivators, who are located only in the Southern regions of the country. Research has indicated that the Saharan movement has resulted in reduction of rains in the region from the 1960s, when it received close to of rainfall.. From 1 September to 8 September 2020, torrential rains topping 100mm fell near the border with Mali, causing widespread damage, particularly in the Bassiknou department . Demographics As of 2013, the population of the region was 430,668, compared to 363,071 in 2011. There were 47.71 per cent females and 52.29 per cent males. As of 2008, the rate of household confirming the