Expansion of Macedonia under Philip II a significant problem, blocking the main route into Greece. However, a second route into central Greece was available. In 480 BC, during the Battle of Thermopylae, the Persian king Xerxes had sent his army via a mountain track (the "Anopea") to outflank the pass. From this track, on the western side of Mount Kallidromon, another road led off and descended in Phocis. In 480 BC, a thousand Phocian troops were stationed above Thermopylae to guard the road and prevent a Persian assault on Phocis (though they notably failed to prevent the Persians using "Anopea"). However, in 339 BC, the Greeks
Kolonos Hill Kolonos Hill Kolonos Hill (; ) is a hill in Central Greece. It is located in the narrow coastal passage known as Thermopylae, and is near the city of Lamia. The hill is best known for the site for the final stand of the 300 Spartans during the Battle of Thermopylae in 480 BC. In 1939, Spyridon Marinatos, a Greek archaeologist found large numbers of Persian arrows around the hill, which changed the hitherto accepted identification of the site where the Greeks had fallen, slain by Persian arrows. A commemorative stone was placed on the site in Antiquity, but the