The Wady Magharah contained mines of copper and of turquoise, which the Egyptians desired to work; and for this purpose it was necessary to hold the country by a set of military posts, in order that the miners might pursue their labours without molestation.Some ruins of the fortifications are still to be seen; and the mines themselves, now exhausted, pierce the sides of the rocks, and bear in many places traces of hieroglyphical inscriptions The remains of temples show that the expatriated colonists were not left without the consolations of religion, while a deep well indicates the care that was taken to supply their temporal needs. Thousands of stone arrow-heads give evidence of the presence of a strong garrison, and make us acquainted with the weapon which they found most effectual against their enemies.