mt. keilir, iceland.

area ashes astronomy background beautiful beauty cliff cliffs cloud crater danger earth ecology energy environment eruption extreme famous field fire formation full geographical geological geology glacial greatness high hill horizon icecap iceland icelandic image island keilir landmark landscape lava mountain nature near night northern panorama park peninsula place planet power reykjanes reykjavik ridge rock scenery scenic science sky snow space stone stratovolcano taken tourism tourist touristic travel vatnsleysustrond view volcanic volcano volcanology western wilderness world