The Histories · 7.176

As to Artemision first, coming out of the Thracian Sea the space is contracted from great width to that narrow channel which lies between the island of Skiathos and the mainland of Magnesia; and after the strait there follows at once in Euboea the sea-beach called Artemision, upon which there is a temple of Artemis. Then secondly the passage into Hellas by Trechis is, where it is narrowest, but fifty feet wide: it is not here however that the narrowest part of this whole region lies, but in front of Thermopylai and also behind it, consisting of a single wheel-track only both by Alpenoi, which lies behind Thermopylai and again by the river Phoinix near the town of Anthela there is no space but a single wheel-track only: and on the West of Thermopylai there is a mountain which is impassable and precipitous, rising up to a great height and extending towards the range of Oite, while on the…

Herodotus of Halicarnassus · trans. G. C. Macaulay, 1890
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