Pactolus

Pactolus (Greek: Πακτωλός), also called Chrysorrhoas (Χρυσορρόας), now named Sart Çayı, is a river near the Aegean coast of Turkey. The river rises from Mount Tmolus, flows through the ruins of the ancient city of Sardis, and empties into the Gediz River, the ancient Hermus. The Pactolus once contained electrum that was the basis of the economy of the ancient state of Lydia, which used the naturally occurring alloy of gold and silver to forge the first coins under Alyattes of Lydia.