The northern end of the Red Sea bifurcates into the Sinai Peninsula, creating the Gulf of Suez (Arabic:خليج السويس‎; transliterated: khalīǧ as-suwais; formerly: بحر القلزم, transliterated: baḥar al-qulzum) in the west and the Gulf of Aqaba to the east. The gulf was formed within a relatively young but now inactive Gulf of Suez Rift rift basin, dating back about 28 million years. It stretches some 300 kilometres (190 mi) north by northwest, terminating at the Egyptian city of Suez and the entrance to the Suez Canal. Along the mid-line of the gulf is the boundary between Africa and Asia. The entrance of the gulf lies atop the mature Gemsa oil and gas field.