The rest of the tributaries are wadis, dry except after rains.
The chief affluents of the sea are as follows: - on the north, Jordan and `Ain es-Suweimeh; on the east Wadis Ghuweir, Zerka Main (Callirrhoe), Mojib (Arnon), Ed-Dera`a, and elHesi; on the west, Wadis Muhawat and Seyal, `Ain Jidi (En-Gedi), Wadi el Merabbah, `Ain Ghuweir, Wadi el-Nar, `Ain Feshkhah.
It is a rugged, rocky, barren waste, scored with khors or wadis, along whose beds there is scanty vegetation.
From the inner slopes of the plateau numerous wadis take a direction towards the Sahara.
It is probable that certain rudely chipped flints, so-called eoliths, in the alluvial gravels (formed generally at the mouth of wadis opening on to the Nile) at Thebes and elsewhere, are the work of primitive man; but it has been shown that such are produced also by natural forces in the rush of torrents.