Mega Oros (ie. big mountain) by Askyfou is one of the peaks of the eastern part of the White Mountains in the cluster of Agathes. It has an altitude of 1181 meters and is located near the location Akones, above Imbros. Mega Oros offers a unique view of the plateau Askyfou and the central core of the White Mountains to the west.
Ascent to the summit is not difficult despite the high inclination. From the desert village of Exo Gonia starts an old stone trail. Just before the top of the mountain there is the chapel of St. George Methystis celebrating on November 3rd. Mega Oros in winter is dressed in white as the snow covers it.