Passage 9.20.3
ἔστι δʼ Ὠρίωνος μνῆμα ἐν Τανάγρᾳ καὶ ὄρος Κηρύκιον, ἔνθα Ἑρμῆν τεχθῆναι λέγουσι, Πόλος τε ὀνομαζόμενον χωρίον· ἐνταῦθα Ἄτλαντα καθήμενον πολυπραγμονεῖν τά τε ὑπὸ γῆς φασι καὶ τὰ οὐράνια, πεποιῆσθαι δὲ καὶ Ὁμήρῳ περὶ τούτου, Ἄτλαντος θυγάτηρ ὀλοόφρονος, ὅστε θαλάσσης πάσης βένθεα οἶδεν, ἔχει δέ τε κίονας αὐτός μακράς, αἳ γαῖάν τε καὶ οὐρανὸν ἀμφὶς ἔχουσιν. Hom. Od. 1.152
At Tanagra there is the tomb of Orion, and a mountain called Cerycius, where they say Hermes was born, as well as a place named Polus ("Heaven"). Here, they assert, Atlas sat and diligently studied both subterranean matters and heavenly affairs. Homer has also composed verses concerning him: "The daughter of baleful Atlas, who knows all the depths of the sea; and he himself holds the tall pillars which keep heaven and earth apart." (Homer, Odyssey 1.52)