 The temperate central portion, where Asmera lies, is situated on a rocky highland plateau, which separates the western lowlands from the eastern coastal plains.The lands that surround Asmera are very fertile, especially those to the south towards the Debub Region of Eritrea.The highlands that Asmera is located in fall away to reveal the eastern lowlands, characterized by the searing heat and humidity of the Eritrean salt pans, lapped by the Red Sea.