|Name origin||Named after Fly Ranch|
|Location||Fly Ranch, Washoe County, Nevada|
|Elevation||4,014 feet (1,223 m)|
|Eruption height||5 feet (1.5 m) and growing|
Fly Geyser, also known as Fly Ranch Geyser is a man-made small geothermal geyser located in Washoe County, Nevada approximately 20 miles (32 km) north of Gerlach. Fly Geyser is located near the edge of Fly Reservoir in the Hualapai Geothermal Flats and is only about 5 feet (1.5 m) high, by 12 feet (3.7 m) wide, counting the mound on which it sits.
Fly Geyser is located on the private Fly Ranch in Hualapai Flat, about 0.3 miles (0.48 km) from State Route 34. The ranch was purchased by the Burning Man Project in 2016. There is a high fence and a locked gate topped with spikes to exclude trespassers. The only access is a dirt road, but it is large enough to be seen from the road.
The source of the Fly Geyser field's heat is attributed to a very deep pool of hot rock where tectonic rifting and faulting are common. Fly Geyser is not an entirely natural phenomenon; it was accidentally created by well drilling in 1964 exploring for sources of geothermal energy. The well may not have been capped correctly, or left unplugged, but either way dissolved minerals started rising and accumulating, creating the travertine mound on which the geyser sits and continues growing. Water is constantly released, 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 74 acres (30 ha). The geyser is made up of a series of different minerals, but its brilliant colors are due to thermophilic algae.
Other local geysers
A prior well-drilling attempt in 1917 resulted in the creation of a man-made geyser close to the currently active Fly Geyser; it created a pillar of calcium carbonate about 12 feet (3.7 m) tall, but ceased when the Fly Geyser began releasing water in 1964.
Two additional geysers in the area were created in a similar way and continue to grow. The first geyser is approximately 3 feet (0.91 m) and is shaped like a miniature volcano; the second is cone-shaped and is about 5 feet (1.5 m).
- "Fly Geyser". CmdrMark.com.
- "We Bought Fly Ranch". Burning Man Journal.
- Jaymi McCann (15 July 2013). "There she blows: The incredible pictures of a man-made geyser in the middle of the Nevada Desert". Daily Mail UK.
- Richard Moreno (4 November 2008). Nevada Curiosities: Quirky Characters, Roadside Oddities & Other Offbeat Stuff. Globe Pequot Press. pp. 104–. ISBN 978-0-7627-4682-8. Retrieved 15 July 2013.
- "Fly Geyser". FlyGeyser.org.
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