The great bay to the south of Beleriand into which the river Sirion flowed. 52, 56, 59, 60, 142. Also the isle in the bay, said to have been the eastern horn of Tol Eressëa that broke away, where Círdan and Gil-galad dwelt after the Nirnaeth Arnoediad. 59, 105, 144, 192, 239, 302, 304-5