Awdal (Awdal, أودَل) is an administrative region (gobol) in western Somaliland. It was separated from Woqooyi Galbeed and became a province in 1984 and is the most northwesterly province of Somaliland. To the east it borders Maroodi Jeex and Sahil; to its north-west it borders Djibouti; to its south and south-west lies Ethiopia; and the Gulf of Aden to its north. The province has an estimated population of 673,263. The region comprises the four districts of Borama, the regional capital, Baki, Lughaya, and Zeila. Awdal (أودل) takes its name from the medieval Adal Sultanate (عَدَل), which was originally centered on Zeila. The area along the Ethiopian border is abundant with ruined cities, which were described by the British explorer Richard F. Burton. Awdal region is three distinct topographical zones: the coastal, mountainous and plateau (Ogo) zones. Starting from the north along the sea is the coastal zone. The coastal zone comprises sandy plains that stretches from Sahil region in the east to Djibouti in north- west and extends up to 70-90 kilometers from the sea and is about 600 meters above the sea level. Next to the coastal zone is the mountainous zone. Geologically, much of the Awdal region is located in the Arabian Plate. The mountainous zone consist a string of mountains, known as Golis range, extends from east to west all across the region and is about 700 –1000 meters above the sea level. The zone is characterized by topographical features such as deep gorges, valleys, and dry water courses, with and without springs, that all end up into coastal zone. During rainy season, the water courses carrying rain water run-offs from mountains go into the sea. The run-offs washed down good soil from mountain tops and, in the process, cause environmental degradation and deterioration of roads passing across the mountains into coastal towns; they also leave behind deep sandy soils in coastal plains that make road transportation a big challenge. The last and the third topographical feature of the region, next to the Mountainous Zone in the south, is the Ogo Plateau zone.