sentences:  Archaeological excavations uncovered impressive prehistoric tombs dating to the 7th millennium BC at the western edge of Eilat, while nearby copper workings and mining operations at Timna Valley are the oldest on earth.Ancient Egyptian records also document the extensive and lucrative mining operations and trade across the Red Sea with Egypt starting as early as the Fourth dynasty of Egypt.Eilat is mentioned in antiquity as a major trading partner with Elim, Thebes' Red Sea Port, as early as the Twelfth dynasty of Egypt.