Solitary Geyser is a fountain-type geyser located in Yellowstone National Park, Wyoming, United States, situated above the Upper Geyser Basin approximately half a mile uphill from the more famous Old Faithful Geyser. It is accessible via the Observation Point loop trail behind Old Faithful.
Description
Solitary Geyser is a clear, blue pool with a geyserite rim. Shallow sinter shelves around the main pool are filled with orange and yellow thermophiles (heat-loving microorganisms) that continue along the runoff channels. The geyser is distinctive for its clear blue water and a base tinted orange.
Eruption Characteristics
- Type: Fountain geyser
- Eruption height: Typically less than 6 feet (1.8 m); most eruptions reach about 3–4 feet
- Frequency: Every 4 to 8 minutes
- Duration: Approximately 1 minute
- Average temperature: 182.8°F (83.8°C)
- Average pH: 6.7
- Average conductivity: 1790 µS/cm
History
Originally, this feature was a hot spring known as Solitary Spring and did not erupt. In 1914, Henry J. Brothers received permission to build a bathhouse and pipe hot water from the spring to heat a swimming pool near Old Faithful. The diversion of water lowered the water level sufficiently to allow boiling to occur at depth, which caused the spring to begin erupting regularly as a geyser. In 1951, the swimming pool was removed, the diversion channel was filled, and water was returned to its original level. Despite these changes, the thermal feature has continued to erupt to the present day.
Etymology
The geyser earned its name "Solitary" for being located away from the majority of the concentrated geysers in the Old Faithful area, making it a less-visited spot in the park.
Location
- Coordinates: 44°28′08″N 110°49′42″W
- Elevation: 7,543 feet (2,299 m)
- Area: Upper Geyser Basin, Yellowstone National Park, Teton County, Wyoming
