Long Valley Caldera is a depression in eastern California that is adjacent to Mammoth Mountain. The valley is one of the Earth's largest calderas, measuring about 20 mi (32 km) long (east-west), 11 mi (18 km) wide (north-south), and up to 3,000 ft (910 m) deep.
The geothermal areas of Yellowstone include several geyser basins in Yellowstone National Park as well as other geothermal features such as hot springs, mud pots, and fumaroles. The number of thermal features in Yellowstone is estimated at 10,000. A study that was completed in 2011 found that a total of 1,283 geysers have erupted in Yellowstone, 465 of which are active during an average year. These are distributed among nine geyser basins, with a few geysers found in smaller thermal areas throughout the Park. The number of geysers in each geyser basin are as follows: Upper Geyser Basin (410), Midway Geyser Basin (59), Lower Geyser Basin (283), Norris Geyser Basin (193), West Thumb Geyser Basin (84), Gibbon Geyser Basin (24), Lone Star Geyser Basin (21), Shoshone Geyser Basin (107), Heart Lake Geyser Basin (69), other areas (33). Although famous large geysers like Old Faithful are part of the total, most of Yellowstone's geysers are small, erupting to only a foot or two. The hydrothermal system that supplies the geysers with hot water sits within an ancient active caldera. Many of the thermal features in Yellowstone build up sinter, geyserite, or travertine deposits around and within them.
Travertine is a form of terrestrial limestone deposited around mineral springs, especially hot springs. It often has a fibrous or concentric appearance and exists in white, tan, cream-colored, and rusty varieties. It is formed by a process of rapid precipitation of calcium carbonate, often at the mouth of a hot spring or in a limestone cave. In the latter, it can form stalactites, stalagmites, and other speleothems. It is frequently used in Italy and elsewhere as a building material. Similar deposits formed from ambient-temperature water are known as tufa.
Tufa is a variety of limestone formed when carbonate minerals precipitate out of water in unheated rivers or lakes. Geothermally heated hot springs sometimes produce similar carbonate deposits, which are known as travertine. Tufa is sometimes referred to as (meteogene) travertine. It should not be confused with hot spring (thermogene) travertine. Tufa, which is calcareous, should also not be confused with tuff, a porous volcanic rock with a similar etymology that is sometimes also called "tufa".
Pamukkale, meaning "cotton castle" in Turkish, is a natural site in Denizli Province in southwestern Turkey. The area is famous for a carbonate mineral left by the flowing of thermal spring water. It is located in Turkey's Inner Aegean region, in the River Menderes valley, which has a temperate climate for most of the year.
Mineral springs are naturally occurring springs that produce hard water, water that contains dissolved minerals. Salts, sulfur compounds, and gases are among the substances that can be dissolved in the spring water during its passage underground. In this they are unlike sweet springs, which produce soft water with no noticeable dissolved gasses. The dissolved minerals may alter the water's taste. Mineral water obtained from mineral springs, and the precipitated salts such as Epsom salt have long been important commercial products.
The Grand Prismatic Spring in Yellowstone National Park is the largest hot spring in the United States, and the third largest in the world, after Frying Pan Lake in New Zealand and Boiling Lake in Dominica. It is located in the Midway Geyser Basin.
Fishing Cone, also known as Fishing Pot Hot Springs is a geyser in the West Thumb Geyser Basin of Yellowstone National Park in Wyoming - America.
Black Pool is a hot spring in the West Thumb Geyser Basin of Yellowstone National Park in the United States.
Yellowstone National Park has over 1,100 miles (1,800 km) of blazed and mapped hiking trails, including some that have been in use for hundreds of years. Several of these trails were the sites of historical events. Yellowstone's trails are noted for various geysers, hot springs, and other geothermal features, and for viewing of bald eagles, ospreys, grizzly bears, black bears, wolves, coyotes, bighorn sheep, pronghorns, and free-ranging herds of bison and elk.
The Mammoth Hot Springs Historic District is a 158-acre (64 ha) historic district in Yellowstone National Park comprising the administrative center for the park. It is composed of two major parts: Fort Yellowstone, the military administrative center between 1886 and 1918, and now a National Historic Landmark, and a concessions district which provides food, shopping, services, and lodging for park visitors and employees. It was added to the National Register of Historic Places on March 20, 2002, for its significance in architecture, conservation, entertainment/recreation, and military. The district includes 189 contributing buildings.
The following articles relate to the history, geography, geology, flora, fauna, structures and recreation in Yellowstone National Park.
Mount Everts, elevation 7,846 feet (2,391 m), is a prominent mountain peak in Yellowstone National Park, Wyoming, near Mammoth Hot Springs. The peak was named for Truman C. Everts, a member of the Washburn–Langford–Doane Expedition of 1870. Mount Everts is located immediately due south of Gardiner, Montana and due east of Mammoth Hot Springs.
Terrace Mountain is a mountain peak in the Gallatin Range in Yellowstone National Park in Park County, Wyoming, United States. The mountain is located 2.2 miles (3.5 km) southwest of Mammoth Hot Springs. Terrace Mountain was named by the 1878 Hayden Geological Survey because of its proximity to the travertine terraces at Mammoth and because it too is an ancient travertine terrace. The mountain has also been known as "Soda Mountain" and "White Mountain".
Badab Soort is a natural site in Mazandaran Province in northern Iran, 95 kilometres (59 mi) south-east of the city of Sari, and 7 kilometres (4.3 mi) east of Orost village. It comprises a range of stepped travertine terrace formations that have been created over thousands of years as flowing water from two mineral hot springs cooled and deposited carbonate minerals on the mountainside.
Belgian Pool is a hot spring in the Upper Geyser Basin of Yellowstone National Park, Wyoming. Originally named Oyster Spring, it was renamed after a visitor from Belgium fell into it in 1929 with fatal results. The spring is less hot than other features in the area, at about 180 °F (82 °C), but still sufficiently hot for severe thermal burns. References to a "Belgian Geyser" in the 1930s may refer to this feature.
Orange Mound Spring is one of the several hot springs in Yellowstone National Park. The name comes from its dark orange appearance caused by orange cyanobacteria living on the travertine, the rock that it is made of. The Orange Mound Spring is part of the Mammoth Hot Springs area of the park. The Orange Mound Spring is arguably most notable for its prominence above the ground, compared to the rest of the Mammoth Hot Springs, which are mostly flat and leveled terraces. It was named by early Yellowstone assistant superintendent and guide, G.L. Henderson.
Travertine Hot Springs are a group of geothermal mineral springs located near the town of Bridgeport, California.
The Soda Dam Hot Spring, also known as the Jemez Springs Soda Dam or simply Soda Dam, is a grouping of fifteen hot springs which have formed a unique calcium carbonate and travertine formation creating a bridge over the Jemez River in Northern New Mexico.
