From Vergil's Fourth Georgic

And the cloven waters like a chasm of mountains Stood, and received him in its mighty portal And led him through the deep’s untrampled fountains He went in wonder through the path immortal Of his great Mother and her humid reign And groves profaned not by the step of mortal Which sounded as he passed, and lakes which rain Replenished not girt round by marble caves ‘Wildered by the watery motion of the main Half ‘wildered he beheld the bursting waves Of every stream beneath the mighty earth Phasis and Lycus which the ... sand paves, [And] The chasm where old Enipeus has its birth And father Tyber and Anienas[?] glow And whence Caicus, Mysian stream, comes forth And rock-resounding Hypanis, and thou Eridanus who bearest like empire’s sign Two golden horns upon thy taurine brow Thou than whom none of the streams divine Through garden-fields and meads with fiercer power, Burst in their tumult on the purple brine.