Passage 8.26.5
ἔστι δὲ Ἀλίφηρα πόλισμα οὐ μέγα· ἐξελείφθη γὰρ ὑπὸ οἰκητόρων πολλῶν ὑπὸ τὸν συνοικισμὸν τῶν Ἀρκάδων ἐς Μεγάλην πόλιν. ἐς τοῦτο οὖν τὸ πόλισμα ἐρχόμενος ἐξ Ἡραίας τόν τε Ἀλφειὸν διαβήσῃ καὶ σταδίων μάλιστά που δέκα διελθὼν πεδίον ἐπὶ ὄρος ἀφίξῃ καὶ αὖθις στάδια ὅσον τριάκοντα ἐς τὸ πόλισμα ἀναβήσῃ διὰ τοῦ ὄρους.
Aliphera is a small settlement; for it was abandoned by many of its inhabitants during the gathering of the Arcadians into the Great City (Megalopolis). Coming to this town from Heraia, you cross the Alpheios, and after traveling across a plain for about ten stades, you reach a mountain. Then, you ascend the mountain about thirty stades until you arrive at the town itself.