The Nubian Desert (Arabic: صحراء النوبة Şaḩrā’ an Nūbah) is in the eastern region of the Sahara Desert, spanning approximately 400,000 km2 of northeastern Sudan and northern Eritrea, between the Nile and the Red Sea. The arid region is rugged and rocky and contains some dunes, and many wadis that die out before reaching the Nile. The average...