Adranon (present day Adrano) is ancient polis and archaeological site on the southwestern slopes of Mount Etna, near Simeto River, known for the "simetite" variety of amber" northwest of Catania. The ancient city was founded by the ancient Greek ruler Dionysius I of Syracuse around 400 BCE upon a pre-Hellenic neolithic settlement, near a temple dedicated to the god Adranus, worshiped throughout Sicily. Adranus was associated with volcanoes and equated eventually with Hephaestus. The city was conquered by Timoleon at 343-342 BCE and subjugated to Rome in 263 BCE. Romans declared it a civitas stipendiaria (city that had to pay tribute to Rome).