Asir Mountains
The Asir Mountains is a mountainous region in southwestern Saudi Arabia running parallel to the Red Sea. It comprises areas in the Asir Province, but generally, it also includes areas near the border with Yemen. The mountains cover approximately and consists of mountains, plains, and valleys of the Arabian highlands. Broadly, they are part of the Sarawat Mountains, defining the latter as the mountain range which runs parallel to the Tihamah throughout the western portion of the Arabian Peninsula, particularly the western parts of Saudi Arabia and Yemen.
Geology
The mountains consist primarily of sedimentary rock, limestone, sandstone and shale, of Jurassic, Cretaceous and Paleogene origin on a Precambrian granitic basement.Climate and agriculture
The region has the highest average rainfall of Saudi Arabia due to largely seasonal rain. Average rainfall can range from to over per year, in wet regions. The eastern plains and plateaus receive much lower amounts, from to below per year.The region's crops, most of which are cultivated on steeply terraced mountainsides, include wheat, coffee, cotton, indigo, ginger, vegetables, and palms. The region also supports cattle, sheep, goats, and camels.