It is conjectured that at some remote period the Hawash flowed into Tajura Bay and that the present condition of the country is the result of volcanic upheaval.
The Hawash flows through the Aussa country in a N.E.
There is a break in the wall, through which the river Hawash flows eastward.
The main range at this point trends S.W., while south of the Hawash valley, which is some 3000 ft.
Narrow and deep clefts, through which descend mountain torrents to lose themselves in the sandy soil of the coast land, afford means of reaching the plateau, or the easier route through the Hawash valley may be chosen.
The chief river of Abyssinia flowing east is the Hawash (Awash, Awasi), which rises in the Shoan uplands and makes a semicircular bend first S.E.
Here the Hawash is a copious stream nearly 200 ft.
The hippopotamus and crocodile inhabit the larger rivers flowing west, but are not found in the Hawash, in which, however, otters of large size are plentiful.
From Dire Dawa to Harrar there is well-made carriage road, and from Harrar to Adis Ababa the caravan track is kept in good order, the river Hawash being spanned by an iron bridge.
Another large stream, the Hawash, rising in the Abyssinian mountains, is lost in a saline depression near the Gulf of Aden.
The soil of the Hawash valley proved particularly suitable for raising this crop. In the high plateaus the planting of seeds begins in May, in the lower plateaus and the plains in June, but in certain parts where the summer is long and rain abundant sowing and reaping are going on at the same time.