What were the eastern, western and northern boundaries of egyptian settlement

Based on physiography, Egypt is usually allocated into four main regions the Nile valley and delta, the Eastern Desert, the Western Desert, and the Sinai Peninsula. When both corporal and cultural features are well thought-out together. The country may be additional divided into sub regions the Nile delta, the Nile valley from Cairo to south of Aswan, the Eastern Desert and the Red Sea coast, the Sinai Peninsula, and the Western Desert and its oases.