Passage 10.33.5
καὶ ὁ ποταμὸς ἐνταῦθα ἔχει τὰς πηγάς· ἄνεισι δὲ ἐκ τῆς γῆς οὐ τὰ πάντα μεθʼ ἡσυχίας, ἀλλʼ ὡς τὰ πλείω συμβαίνειν μεσούσης μάλιστα τῆς ἡμέρας παρέχεται φωνὴν ἀνερχόμενος· εἰκάσαις ἂν μυκωμένῳ ταύρῳ τὸν ἦχον τοῦ ὕδατος. ἔχει δὲ ἡ Λίλαια καὶ πρὸς τὰς τοῦ ἔτους ὥρας μετοπώρου καὶ ἐν θέρει καὶ ἦρος ἐπιτηδείως· τὸν δὲ χειμῶνα μὴ ὁμοίως ἤπιον γίνεσθαι κωλύει τὸ ὄρος ὁ Παρνασσός.
Here the river has its sources. It rises from the earth, not always quietly, but mostly—especially when midday draws near—it produces a sound as it wells upward, which resembles the bellowing of a bull. Lilaea possesses a climate suitably temperate during the various seasons—in autumn, summer, and spring—but the mountain Parnassus prevents its winter from being equally mild.