Passage 8.36.1
τὸ ἀπὸ τούτου δὲ ἐς μνήμην οὐδὲν ἄλλο ὅτι εἰ μὴ αὐτὸ τὸ Μεθύδριον λείπεται· ὁδὸς δὲ ἐκ Τρικολώνων ἐς αὐτὸ στάδιοι τριῶν δέοντες τεσσαράκοντα καὶ ἑκατόν. ὠνομάσθη μὲν δὴ Μεθύδριον, ὅτι κολωνός ἐστιν ὑψηλὸς Μαλοίτα τε ποταμοῦ καὶ Μυλάοντος μέσος, ἐφʼ ᾧ τὴν πόλιν ὁ Ὀρχομενὸς ᾤκιζε· πρὶν δὲ ἢ συντελεῖν ἐς τὸ Μεγαλοπολιτικόν, γεγόνασι καὶ Μεθυδριεῦσιν ἀνδράσιν Ὀλυμπικαὶ νῖκαι.
After this, nothing worth recalling remains except Methydrium itself. The road from Tricoloni to this place measures one hundred and thirty-seven stades. Methydrium received its name because it stands upon a high hill situated between the rivers Maloetas and Mylaon, where Orchomenus established the city. Even before the establishment of Megalopolis, men from Methydrium had already attained victories at the Olympic Games.