Passage 8.24.4
ἔχει δὲ τὰς πηγὰς ὁ Ἐρύμανθος ἐν ὄρει Λαμπείᾳ, τὸ δὲ ὄρος τοῦτο ἱερὸν εἶναι Πανὸς λέγεται· εἴη δʼ ἂν τοῦ ὄρους τοῦ Ἐρυμάνθου μοῖρα ἡ Λάμπεια. ἐποίησε δὲ Ὅμηρος ὡς ἐν Ταϋγέτῳ τε καὶ Ἐρυμάνθῳ θηρευτὴς οὖν τῆς Λαμπείας ὁ Ἐρύμανθος, καὶ Ἀρκαδίαν διεξελθὼν ἐν δεξιᾷ μὲν τὸ ὄρος ἔχων τὴν Φολόην, ἐν ἀριστερᾷ δὲ πάλιν Θέλπουσαν χώραν, κάτεισιν ἐς τὸν Ἀλφειόν.
The Erymanthus River has its sources on Mount Lampeia, and this mountain is said to be sacred to Pan; indeed, Lampeia might properly be considered part of Mount Erymanthus. Homer himself represented Erymanthus as a place for hunting, as he did for Mount Taygetus. Thus, originating from Lampeia and flowing across Arcadia—with Mount Pholoe on its right and the district of Thelpusa on its left—the Erymanthus descends into the Alpheius River.