Fig. 1: The main valley in the northern part of the Petrota area.
Fig. 2: An alluviated valley floor (110 m asl) with cereal fields, center, framed by pine forest, foreground, and oak maquis on the hills beyond.
Fig. 3: The Kremastos ravine, west-central part of the Petrota graben.
Fig. 3 detail: Rhyolite cliffs over the Kremastos ravine. The ravine itself cuts through beds of tuff. Vegetation is (grazed) oak maquis.