Oued el Maleh is in the northwest part of Algeria and drains into the Mediterranean Sea at about 35°26′32″N 1°14′13″W﻿ / ﻿35.442169°N 1.236836°W﻿ / 35.442169; -1.236836 within Terga Municipality. Its watershed covers much of the province and is of elongated shape with an area of 932.56 km2. approximately between 1°9’24’’ and 1°26’17’’W of longitude and between 35°17’22’’ and 35°16’37’’N of latitude and maximal altitude of 808m in the south.