Alodia was located in Nubia, a region which, in the middle ages, extended from Aswan in southern Egypt to an undetermined point south of the confluence of the White and Blue Nile rivers. The heartland of the kingdom was the Gezira, a fertile plain bounded by the White Nile in the west and the Blue Nile in the east. In contrast to the White Nile Valley, the Blue Nile Valley is rich in known Alodian archaeological sites, among them Soba. The extent of the Alodian influence to the south is unclear, although it is likely that it bordered the Ethiopian highlands. The southernmost known Alodian sites are in the proximity of Sennar.