One Of The Massive Sulfur Vents In Hverir. Geothermal Region Of Hverir Near Myvatn Lake In Iceland. - The Large Geothermal Field Of Hverir Is A Unique Wasteland In Which Pools Of Boiling Mud, Hot Springs And Hissing Chimneys. Namafjall Is A Mountain, Beneath Which Is Hverir, A Geothermal Area With Boiling Mudpools And Steaming Fumaroles. Fumaroles Are Openings In The Earth’s Crust Emit Sulfuric Gases. Fumaroles Often Exist In Volcanic Regions Along Cracks Or Fissures In The Ground. It Was Almost Hypnotizing To Watch The Clouds Of Smoke Emanate From These Vents. Iceland, Europe Photo