not the Sitia mountains. They are not even in Sitia. The Bebonas valley cannot serve as a border near the coast, as it only descends from its origin in the pre-existing mountains. The distance from Ierapetra to that valley is about 20 km, which can be taken as an approximate length of the mountains. The maximum width perpendicular to a representative length is up to about 9 km, but of course the width varies from a few km near Ierapetra.

The mountains are a massif, seen from outside the massif as a wall