The Komorni hurka volcano located in the basin of the Eger river. On flat land the volcano looks more like a hill. With it's 503 meters hight above sea level. Never the less, the Karlovy Vary region can be very proud of this the youngest Czech volcano with best – preserved example of surface volcanity in the country, that has not been active for the past 80 000 years. In the phase of fading activity it resembles the escaping Carbondioxide through the flowing lava.