Passage 6.22.11
Ἐλαφιαίαν δὲ ἐκάλουν οἱ Ἠλεῖοι τὴν Ἄρτεμιν ἐπὶ τῶν ἐλάφων ἐμοὶ δοκεῖν τῇ θήρᾳ· αὐτοὶ δὲ γυναικὸς ἐπιχωρίας ὄνομα εἶναι τὴν Ἐλάφιον καὶ ὑπὸ ταύτης τραφῆναι τὴν Ἄρτεμίν φασι. Λετρίνων δὲ ὅσον τε ἕξ ἀπωτέρω σταδίοις ἐστὶν ἀέναος λίμνη τριῶν που τὴν διάμετρον σταδίων μάλιστα.
The Eleans called Artemis "Elaphiaia," in my opinion because of her hunting of deer (elaphoi). But they themselves claim that "Elaphion" was the name of a local woman, and they say that Artemis was nurtured by this Elaphion. About six stades from Letrinoi is a perennial lake, approximately three stades in diameter.