{{short description|Wadi in Western Sahara and Mauritania}} {{Infobox river | name = Khatt Atui | name_other = Khatt Atoui, Wad Atui, Uad Atui, Oued Atui, Oued Atwiy | image = | image_size = | image_caption = | image_alt = | map = Western sahara rel 1989.jpg | map_size = 300px | map_caption = 1989 map of Western Sahara showing the course of Khatt Atui (Uad Atui) | map_alt = | pushpin_map = | pushpin_map_size = 300 | pushpin_map_caption= | pushpin_map_alt = | subdivision_type1 = Countries | subdivision_name1 = Mauritania, Western Sahara | subdivision_type2 = Regions | subdivision_name2 = Dakhlet Nouadhibou, Inchiri (Mauritania) | subdivision_type3 = | subdivision_name3 = <!---------------------- PHYSICAL CHARACTERISTICS --> | length = | width_min = | width_avg = | width_max = <!---------------------- BASIN FEATURES --> | source1 = northeast of Aousserd, Western Sahara | source1_location = | source1_coordinates= {{Coord|22|47|N|14|07|W}} | source1_elevation = | mouth = Baie d'Aouati, Atlantic Ocean | mouth_location = | mouth_coordinates = {{Coord|19|53|N|16|15|W}} | mouth_elevation = | progression = | river_system = | basin_size = {{Cvt|83295|km2}} | basin_landmarks = | basin_population = 99,599 | tributaries_left = | tributaries_right = | waterbodies = }} '''Khatt Atui''' is a wadi in North Africa. This dry riverbed begins near Aousserd in the disputed territory of Western Sahara and runs southwest through the Dakhlet Nouadhibou and Inchiri Regions of Mauritania,<ref>{{cite map |url=http://legacy.lib.utexas.edu/maps/tpc/txu-pclmaps-oclc-22834566_j-1b.jpg |title=TPC J-1B: El Memrhar, Mauritania |series=Tactical Pilotage Chart |scale=1:500,000 |publisher=Defense Mapping Agency Aerospace Center |date=1985}}</ref> ending at the Baie d'Aouati on the Atlantic coast east of Iouik, Mauritania in Banc d'Arguin National Park.<ref>{{cite map |url=http://legacy.lib.utexas.edu/maps/ams/west_africa/txu-oclc-6595921-ne28-2.jpg |title=NE 28-2: El Memrhar, Mauritania |series=Series G504 |scale=1:250,000 |publisher=U.S. Army Map Service |date=1963}}</ref>
The Atui basin as defined by the Transboundary Waters Assessment Programme of the Global Environment Facility covers {{convert|83295|km2}} and is home to an estimated 99,599 people.<ref>{{cite web |url=http://twap-rivers.org/indicators/Report.ashx?type=BasinFactsheet&bcode=ATUI |title=Atui Basin |publisher=Transboundary Waters Assessment Programme |date=2016 |accessdate=4 February 2018 |archive-date=6 March 2019 |archive-url=https://web.archive.org/web/20190306111729/http://twap-rivers.org/indicators/Report.ashx?type=BasinFactsheet&bcode=ATUI |url-status=dead }}</ref> The Mauritanian settlements of Chami (on the highway between Nouakchott and Nouadhibou), Imkebden and N'Talfa are located along the wadi,<ref>{{cite map |url=http://legacy.lib.utexas.edu/maps/ams/west_africa/txu-oclc-6595921-nf28-14-2nd-ed.jpg |title=NF 28-14: Chami, Mauritania |series=Series G504 |scale=1:250,000 |publisher=U.S. Army Map Service |date=1963}}</ref> as is the Tasiast gold mine.<ref>{{cite web |title=Addendum to the Phase 2 Environmental Impact Assessment for the Expansion Project at the Tasiast Mine in Mauritania |url=https://www.miga.org/Documents/SPGDisclosures/Addendum%20to%20Phase%202%20Environmental%20Impact%20Assessment%20for%20Expansion%20Proj%20at%20Tasiast%20Mine-Mauritania%20-%20SRK%20-%20Jan%202016.pdf |publisher=SRK Consulting |page=4 |date=January 2016 |accessdate=4 February 2018}}</ref>
Khatt Atui has been suggested as the location of the lower reaches of a major ancient river, dubbed the Tamanrasett paleoriver, that flowed through the Sahara to the Arguin Basin during humid episodes in the late Quaternary.<ref>{{cite journal |date=2015 |title=African humid periods triggered the reactivation of a large river system in Western Sahara |doi=10.1038/ncomms9751 |journal=Nature Communications|pmc=4659928 |pmid=26556052 |volume=6 |page=8751 | last1 = Skonieczny | first1 = C | last2 = Paillou | first2 = P | last3 = Bory | first3 = A | last4 = Bayon | first4 = G | last5 = Biscara | first5 = L | last6 = Crosta | first6 = X | last7 = Eynaud | first7 = F | last8 = Malaizé | first8 = B | last9 = Revel | first9 = M | last10 = Aleman | first10 = N | last11 = Barusseau | first11 = JP | last12 = Vernet | first12 = R | last13 = Lopez | first13 = S | last14 = Grousset | first14 = F}}</ref> Early Neolithic archaeological sites have been found along the Mauritanian portion of the wadi.<ref>{{cite web |title=Tasiast Gold Mine Expansion Project: Phase 1b Environmental Impact Assessment |url=https://www.miga.org/Documents/SPGDisclosures/Phase%201b%20Environmental%20Impact%20Assessment%20Supporting%20Infrastructure%20and%20Preliminary%20Upgrades%20-%20URS%20Scott%20Wilson%20-%20July%202011.pdf |publisher=URS Scott Wilson |page=122 |date=31 July 2011 |accessdate=4 February 2018}}</ref>
==References== {{Reflist|30em}}
Category:Rivers of Mauritania Category:Rivers of Western Sahara Category:Wadis Category:Former rivers
{{Mauritania-river-stub}} {{WesternSahara-river-stub}}