§ Of the Ruin of Beleriand and the Fall of Fingolfin The Silmarillion

But King Fingon was hard put to it to hold back the army of Angband that came down from the north; and battle was Joined upon the very plains of Hithlum. There Fingon was outnumbered; but the ships of Círdan sailed in great strength up the Firth of Drengist, and in the hour of need the Elves of the Falas came upon the host of Morgoth from the west. Then the Orcs broke and fled, and the Eldar had the victory, and their horsed archers pursued them even into the Iron Mountains.