Best Yellowstone

Old Faithful Geyser is a naturally occurring cone geyser located within Yellowstone National Park’s Upper Basin. It is notable for its exceptionally consistent eruption cycles, reliably predicted since its initial observation in 1870. The predictable nature of Old Faithful makes it a popular destina...

Grand Geyser is a prominent geyser located within Yellowstone National Park’s Upper Basin. It stands out as the tallest reliably predictable geyser globally, consistently erupting with impressive force. The eruptions reach heights of approximately 200 feet due to sustained geothermal heating. Scient...

Giant Geyser is a large, cone-shaped geyser located within the Upper Basin of Yellowstone National Park. It’s notable for its powerful eruptions, which can reach heights of approximately 250 feet. The geyser's behavior is driven by underground thermal activity and steam pressure. Scientists and visi...

Great Fountain Geyser is a consistently erupting geyser located within Yellowstone National Park’s Lower Geyser Basin. Its notable predictability makes it the only reliably forecast geyser in the park. The geyser's eruptions create impressive terraced pools and are of interest to scientists studying...

Riverside Geyser is a consistently erupting geyser located within Yellowstone National Park’s Upper Basin. It's notable for its reliably predictable eruptions, typically reaching heights of approximately seventy-five feet above the Firehole River. This behavior makes it an important subject of study...

The Beehive Geyser is a prominent feature within Yellowstone National Park’s Upper Basin. It’s notable for its consistently powerful eruptions, reaching heights of approximately 60 to 80 feet through a constricted cone vent. These geysers are driven by superheated water and steam beneath the earth's...

The Porcelain Basin Fumaroles constitute a highly active geothermal area located within the Norris Geyser Basin in Yellowstone National Park, Wyoming. This stark landscape is primarily shaped by acidic hydrothermal features that prevent the growth of vegetation, leaving behind pale deposits of silic...

Lower Yellowstone Falls is a prominent waterfall within Yellowstone National Park in Wyoming. It’s notable for its impressive height and the vibrant yellow hues of the water caused by dissolved minerals. The falls are a popular attraction for visitors to the park including hikers, photographers, and...

Yellowstone Lake is a large freshwater lake in Yellowstone National Park, Wyoming, United States, situated at about 2,357 m elevation on the Yellowstone Caldera. With a surface area of roughly 350 km², it is the largest high-elevation lake in North America. Its outlet is the Yellowstone River, and t...

The Morning Glory Pool is a geothermal hot spring within Yellowstone National Park’s Upper Geyser Basin. Its striking yellow color originates from thermophilic bacteria thriving in the consistently heated water. The pool's shape has evolved due to visitor contributions and ongoing geological activit...

Old Faithful is an active geyser located within Yellowstone National Park’s Upper Basin. Its notable predictability stems from a consistent underground plumbing system fueled by superheated groundwater. Eruptions occur approximately every 60 to 110 minutes, sending water columns up to 185 feet into...

Black Dragon's Cauldron is a large, violently bubbling mudpot located within the Mud Volcano hydrothermal area of Yellowstone National Park in the United States. It first emerged in 1948 and subsequently became one of the park's most dynamic geothermal features. The acidic pool is distinguished by i...

Grand Prismatic Spring is a large natural hot spring within Yellowstone National Park. It’s notable for its immense size – approximately 112 meters wide – and vibrant colors produced by extensive bacterial mats thriving in the geothermal waters. These mats create distinct bands of yellow, orange, gr...

Norris Geyser Basin’s fumaroles represent an active area of intense hydrothermal activity within Yellowstone National Park. These vents release superheated steam and gases due to subsurface magma heat. They are among the hottest geothermal features globally, consistently reaching boiling temperature...

The Fountain Paint Pot Fumaroles are hydrothermal steam vents located in the Lower Geyser Basin of Yellowstone National Park. They are part of a highly active geothermal area where superheated water vapor escapes continuously through cracks in the Earth's surface. This specific location is notable b...

Morning Geyser is a naturally occurring fountain geyser located within Yellowstone National Park’s Lower Geyser Basin. It was first documented in 1899 and exhibits periodic eruptions reaching heights of approximately 200 feet. This geyser is notable for its consistent eruption patterns, particularly...

Giantess Geyser is a large geyser within Yellowstone National Park's Upper Basin. It’s notable for its rare, dramatic eruptions which generate significant water pressure and can trigger localized ground vibrations. These events are particularly interesting to volcanologists studying hydrothermal sys...

The Porcelain Basin Mudpots are volatile hydrothermal features located within the Norris Geyser Basin of Yellowstone National Park in the United States. These mudpots form when sulfuric acid microorganisms decompose surrounding rock into clay, which then mixes with steam and volcanic gases to create...

Lone Star Geyser is a cone geyser located within Yellowstone National Park’s Lone Star Geyser Basin. It consistently erupts approximately every three hours, reaching heights of 35 to 40 feet. These predictable eruptions make it an interesting natural phenomenon for visitors and researchers studying...

Upper Yellowstone Falls is a prominent cascade within Yellowstone National Park in Wyoming. It’s notable for its impressive height and forceful plunge into the Firehole River. The falls are a popular destination for visitors seeking to experience significant waterfall scenery and geological formatio...

The Fountain Paint Pot is a geological feature within Yellowstone National Park’s Lower Geyser Basin. It showcases vibrant mineral coloration—primarily pink and gray—resulting from silica and iron oxide deposits. This active mudpot is notable for its unique thermal activity and striking visual appea...

The Excelsior Geyser is a significant hydrothermal feature within Yellowstone National Park. It’s notable for its past dramatic eruption behavior, previously generating powerful bursts of steam and water reaching heights of approximately 300 feet. This geyser, located in the Midway area, continues t...

Sulphur Caldron fumaroles represent a significant area within Yellowstone National Park’s hydrothermal system. These vents display intensely acidic conditions due to volcanic activity and groundwater interaction. The release of large volumes of sulfur dioxide and other gases creates a distinctive ye...

Fan Geyser is a natural geyser within the Upper Basin of Yellowstone National Park’s Lower Geyser Basin. It’s notable for producing a unique, fan-like eruption pattern when actively steaming. The consistent shape of its spray makes it a subject of study for geologists examining hydrothermal activity...

The Back Basin is a section of Norris Geyser Basin in Yellowstone National Park, Wyoming, containing a diverse array of geothermal features including mudpots, geysers, and hot springs. Norris Geyser Basin is the hottest and most acidic thermal area in Yellowstone. Steamboat Geyser, located in the Ba...

Robert L. Christiansen is an American volcanologist and geologist who worked extensively with the United States Geological Survey (USGS). He is best known for his detailed field mapping and research in the 1960s and 1970s, which helped define the massive volcanic caldera system beneath Yellowstone N...

Mud volcanoes near Yellowstone’s Mud Caldron area release significant amounts of steam and gases due to geothermal activity. These fumaroles display vibrant yellow and orange colors from dissolved minerals like iron and sulfur. The intense heat and acidic conditions create unique hydrothermal featur...

Splendid Geyser is a natural geyser within Yellowstone National Park’s Upper Basin. It's notable for its infrequent but powerful eruptions reaching heights over sixty meters. These events are driven by geothermal activity and occur when specific conditions align. The geyser is of interest to visitor...

The Sapphire Pool is a striking geothermal hot spring located within Yellowstone National Park’s Biscuit Basin in Wyoming. Its intense blue color arises from dissolved minerals and silica, intensified by sunlight. The pool gained notoriety following the 1959 Hebgen Lake earthquake when it briefly er...