Adesert valley formed by a dry river bed that runs from the Eastern Delta in LowerEgyptto Ismailia. The area appears to have been uninhabited except during the Second Intermediate Period and the Late Period to the Graeco-Roman Period. The archaeological site of Tell er-Ratabais located at the Delta edge of the wadi and that of Tell el-Maskhutain the middle. The area was probably known as Tjeku during the New Kingdom and was closely guarded as one of the desert routes into Egypt.
Historical Dictionary Of Ancient Egypt by Morris L. Bierbrier
Ancient Egypt. A Reference Guide. EdwART. 2011.