This 59 foot wide circle of aqua water is the Great Geysir. Geologists believe it may be over 10,000 years old. A powerful jet of hot water and steam used to regularly blast up to 250 feet high from this vent. In 1916, Stori-Geysir mysteriously went dormant except for intermittent displays in subsequent years. The English word “geyser” is a derivative of this hydrothermal site. In turn, The Icelandic word “geysa” means “to gush” or “gusher.”
