Note 150 — Chapter XL · BATTLES OF THERMOPYLÆ AND ARTEMISIUM.
Reading edition
The pass over which Xerxes passed was that by Petra, Pythium, and Oloosson,—“saltum ad Petram,”—“Perrhæbiæ saltum,”—(Livy, xlv, 21; xliv, 27.) Petra was near the point where the road passed from Pieria, or lower Macedonia, into upper Macedonia (see Livy, xxxix, 26).
Compare respecting this pass, and the general features of the neighboring country, Colonel Leake, Travels in Northern Greece, vol. iii, ch. xviii, pp. 337-343, and ch. xxx, p. 430; also Boué, La Turquie en Europe, vol. i, pp. 198-202.
The Thracian king Sitalkês, like Xerxes on this occasion, was obliged to cause the forests to be cut, to make a road for his army, in the early part of the Peloponnesian war (Thucyd. ii, 98).