The question, how does a geyser form, can not be answered quickly.
Geysers are temporary features geologically.
They last at the most several thousand years. Geysers are usually associated with volcanic areas. The fact that they need heat much higher than normally found near the earth's surface is the reason they are usually associated with volcanoes or volcanic areas. Click below to find out more about the conditions nessecary for geyser formation. Return to Wyo's Geyser Page WyoJones Geyser Page. 1999 Gregory L. Jones.