Fly Geyser, Washoe County, Nevada, United States

Fly Geyser is located on the private Fly Ranch and is accessible only by a small private dirt road. The ranch is currently owned by Todd Jaksick. There is a high fence and a locked gate with several metal spokes on the top to keep trespassers out, but despite the booby traps, many people still prefer to jump the fence to get a better look. Several organizations have tried to purchase the land for conservation, and make it open to the public, but have been denied.
Fly Geyser is a very little known tourist attraction, even to Nevada residents. It is located right near the edge of Fly Reservoir and is only about 5 feet (1.5 m) high, (12 feet (3.7 m) if you count the mound on which it sits). The Geyser is not an entirely natural phenomenon, and was accidentally created in 1916 during the drilling of a well. The well functioned normally for several decades, but then in the 1960s geothermally heated water found a weak spot in the wall and began escaping to the surface. Dissolved minerals started rising and piling up, creating the mount on which the geyser sits, which is still growing to date. Today, water is constantly squirting out reaching 5 feet (1.5 m) in the air. The geyser contains several terraces discharging water into 30 to 40 pools over an area of 30 hectares (74 acres). The geyser is made up of a series of different minerals, including sulfur dioxide, which gives it its magnificent coloration.
There are two additional geysers in the area that were created in a similar way as Fly Geyser. The first geyser is approximately 3 feet high and is shaped like a miniature volcano. The second geyser is cone shaped and is of the same approximate size as Fly Geyser. Like Fly Geyser, these geysers are continually growing.