Best Fumarole Field
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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...
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...
Poás Crater Fumaroles are gas vents beside Laguna Caliente in Costa Rica, one of the world's most acidic volcanic lakes and a focus of volcano monitoring.
Námafjall Hverir is a geothermal area located in northeastern Iceland, approximately 6 kilometers east of Lake Mývatn. The site features an otherworldly landscape of steaming fumaroles, bubbling mud pots, and sulfur deposits that create vivid yellow and orange coloring across the terrain. Unlike man...
The Tatio-La Torta fumaroles are part of a massive, high-altitude geothermal field located in the Andes Mountains of the Atacama Region in northern Chile. The system sits at an elevation of roughly 4,300 meters, making El Tatio one of the highest geyser fields in the world. The broader area also enc...
The Death Valley fumaroles are a cluster of geothermal gas vents located on the slopes of Kikhpinych volcano on the Kamchatka Peninsula in far eastern Russia. The vents release volcanic gases including hydrogen sulfide, carbon dioxide, and sulfur dioxide, which are denser than air and accumulate in...
The Valley of Ten Thousand Smokes represents an extraordinary geological feature in Alaska’s Katmai region. It is a massive deposit of ash created by the 1912 Novarupta eruption, notable for its extensive network of persistent fumaroles—steam and gas vents. This field offers scientists valuable insi...
The Sulphur Banks, known in Hawaiian as Ha'akulamanu, is a geothermal fumarolic area located near the summit caldera of Kīlauea volcano in Hawai'i Volcanoes National Park. Volcanic gases, primarily sulfur dioxide and hydrogen sulfide, escape from underground magma and deposit bright yellow sulfur cr...
Tengchong Rehai is a fumarolic geothermal field in Yunnan, China, notable for boiling springs and volcanic heat near the China-Myanmar border.
The Kikhpinych fumaroles are thermal vents on a Kamchatka stratovolcano whose former summit geysers were buried by a rock avalanche in 1981-1982.
The Láscar fumaroles occupy the active crater of northern Chile's most active volcano, where direct measurements in 2002 reached temperatures of 385°C.
La Soufrière de Guadeloupe Fumaroles are summit gas vents on the French Caribbean volcano, whose hydrothermal unrest resumed progressively from 1992.
Sol de Manana represents an active geothermal area within Bolivia’s Altiplano. It features numerous fumaroles venting steam and gases due to subsurface heat. Located at approximately 4,900 meters above sea level in the Eduardo Avaroa Páramo Reserve, this site is of interest to scientists studying vo...
Hverir, also known as Namaskard, is an active Icelandic fumarole field located beneath Namafjall. The area features intense geothermal activity including steaming vents and bubbling mud pools due to high concentrations of sulfurous gases released from the earth’s interior. It's a valuable site for s...
Sulphur Springs Fumaroles are steam and gas vents near Soufrière, Saint Lucia, in the hottest and most active geothermal area of the Lesser Antilles.
Dayoukeng's fumaroles vent sulfurous gas in Yangmingshan National Park, Taiwan, on the active hydrothermal system of the Tatun Volcano Group.
Stefanos Crater is a prominent hydrothermal volcanic formation located within the main caldera on the Greek island of Nisyros. It is a phreatic crater, meaning it was formed by explosive steam eruptions rather than the direct ejection of magma. The crater floor features an active fumarole field wher...
Owakudani is a volcanic valley in the Hakone area of Kanagawa Prefecture, Japan, formed around 3,000 years ago following an eruption of Mount Hakone. The area contains active sulfur vents, hot springs, and fumaroles. Visitors can reach it via the Hakone Ropeway and commonly purchase eggs boiled in t...
The San Jacinto fumaroles are hydrothermal vents on Telica volcano's southeastern flank in Nicaragua, noted for steaming ground and bubbling mud pools.
La Soufrière Saint Vincent Fumaroles are summit gas vents on the island's active volcano, which began growing a new lava dome in December 2020.
Hot Creek Fumaroles are hydrothermal vents in California's Long Valley Caldera, where Sierra Nevada snowmelt is heated underground before reaching Hot Creek.
Turrialba Summit Fumaroles are gas vents at an active stratovolcano in Costa Rica, where renewed eruptions from 2010 produced ash and sulfur-rich plumes.
Mount Shasta Summit Fumaroles are volcanic gas vents near the California volcano's summit, sampled regularly by the USGS since 2012 to monitor unrest.
The Fuego Summit Fumaroles are gas vents in the summit crater of Guatemala's Volcán de Fuego, one of Central America's most persistently active volcanoes.
The Solfatara di Pozzuoli is a dormant volcanic crater situated in the Campi Flegrei caldera near Naples, Italy. It is characterized by extensive fumaroles that emit sulfurous gases and steam, alongside bubbling mud pits. This shallow crater has been a noted geological site since Roman antiquity and...
Caldeiras das Furnas are geothermal vents, boiling springs, and fumaroles located in the Furnas valley on São Miguel, the largest island in the Azores archipelago of Portugal. The area is culturally notable for the traditional preparation of cozido, a stew of meats and vegetables cooked underground...
Borinquen Fumaroles are steam vents on the flank of Rincón de la Vieja in Costa Rica's Guanacaste Province, an active volcano with abundant thermal features.
Irazú Crater Fumaroles are gas vents at Costa Rica's highest volcano, whose major 1963 eruption began on the day US President John F. Kennedy arrived.
Seltún is a high-temperature geothermal field within the Krýsuvík volcanic system on Iceland's Reykjanes Peninsula, where the Mid-Atlantic Ridge surfaces above sea level. Boardwalks lead visitors past steaming solfataras, bubbling mud pots, and sulfur-encrusted vents in a landscape of altered clay a...
Hveradalir is a geothermal valley in the Kerlingarfjöll mountain range in the Icelandic highlands. The area features extensive hot springs, fumaroles, and steaming ground set amid colorful rhyolite terrain. Kerlingarfjöll is a volcanic massif reaching approximately 1,477 meters in elevation. The val...
