Passage 8.54.5
ἡ δὲ ἐς Ἄργος ἐκ Τεγέας ὀχήματι ἐπιτηδειοτάτη καὶ τὰ μάλιστά ἐστι λεωφόρος. ἔστι δὲ ἐπὶ τῆς ὁδοῦ πρῶτα μὲν ναὸς καὶ ἄγαλμα Ἀσκληπιοῦ· μετὰ δὲ ἐκτραπεῖσιν ἐς ἀριστερὰ ὅσον στάδιον Ἀπόλλωνος ἐπίκλησιν Πυθίου καταλελυμένον ἐστὶν ἱερὸν καὶ ἐρείπια ἐς ἅπαν. κατὰ δὲ τὴν εὐθεῖαν αἵ τε δρῦς εἰσι πολλαὶ καὶ Δήμητρος ἐν τῷ ἄλσει τῶν δρυῶν ναὸς ἐν Κορυθεῦσι καλουμένης· πλησίον δὲ ἄλλο ἐστὶν ἱερὸν Διονύσου Μύστου.
The road from Tegea to Argos is well suited to carriage-travel and is above all a main thoroughfare. Along the road, first you come to a temple and statue of Asclepius. Then, turning off about one stade towards the left, there is a sanctuary of Apollo surnamed Pythius, now destroyed and completely in ruins. Along the straight route itself are many oak trees and a temple of Demeter located in this oak grove, called Demeter in Corytheis. Nearby there is another sanctuary dedicated to Dionysus Mystes.