Passage 8.15.5
ἐς δὲ Πελλήνην ἐκ Φενεοῦ καὶ ἐς Αἴγειραν ἰόντι Ἀχαιῶν πόλιν, πέντε που προεληλυθότι καὶ δέκα σταδίους, Ἀπόλλωνός ἐστι Πυθίου ναός· ἐρείπια δὲ ἐλείπετο αὐτοῦ μόνα καὶ βωμὸς μέγας λίθου λευκοῦ. ἐνταῦθα ἔτι καὶ νῦν Ἀπόλλωνι Φενεᾶται καὶ Ἀρτέμιδι θύουσιν, Ἡρακλέα ἑλόντα Ἦλιν τὸ ἱερὸν λέγοντες ποιῆσαι. ἔστι δὲ αὐτόθι καὶ ἡρώων μνήματα, ὅσοι σὺν Ἡρακλεῖ στρατείας ἐπὶ Ἠλείους μετασχόντες οὐκ ἀπεσώθησαν οἴκαδε ἐκ τῆς μάχης.
On the road from Pheneus toward Pellene and Aegeira (a city belonging to the Achaeans), at approximately fifteen stadia along, there stands a sanctuary of Apollo Pythios. Only ruins remain there, along with a great altar of white stone. Even today at this place, the people of Pheneus still make sacrifices to Apollo and Artemis, claiming that Heracles built this sanctuary after his victory over Elis. There are also monuments of heroes there, dedicated to those who joined Heracles in his campaign against the Eleans but did not survive to return home from the battle.