Fly Geyser, Nevada

Accidentally created in 1916 after drilling for an oil well, the Fly Geyser exists today after the natural geothermal spring found a weak-spot in this new mound and began to sprout, continuously building-up the dissolved minerals present today.  It is located at the Fly Ranch in Washoe County Nevada.

http://en.wikipedia.org/wiki/Fly_Geyser

Also, Nevada means 'snow covered.'  So Sierra Nevada means 'snow covered mountains.'