The goatskin guerbas are filled with water. In the valley of the gueltas (waterholes), in the northern part of the Tamgak massif, also known as Zakkat - Aïr - Niger - 2002
     	The goatskin guerbas are filled with water. In the valley of the gueltas (waterholes), in the northern part of the Tamgak massif, also known as Zakkat - Aïr - Niger - 2002