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Seltún Geothermal Area with a fumaroles through which hot sulphurous gases emerge emitting an appalling odor of rotten eggs. Reykjanes Peninsula in southwestern Iceland.
Fjallabak (Icelandic Highlands) 20210717
Shaped by the antagonism of ice and fire, the South Highlands of Fjallabak offer landscapes like no other. Nature, here in delirium, combines harmoniously contradictory landscapes with the art of paradox. Green meadows, lava fields, pristine glaciers, black sand beaches, blue iceberg lagoons, basalt fortresses, crystalline waterfalls, powerful rivers, volcanoes pretending to sleep, flooded bogs, fumaroles in the shape of rainbows flood succeed and renew endlessly. While the ocean in front of so many wonders is not left out and spreads its power and its immensity, launching its rolls and its millions of pelagic birds to conquer this land that was supposed to stay at the bottom of the abyss.
Source Fjallabak behind the Mountains.
A beautiful evening greeted me as I stopped at Steamboat Point which lies on the southeast side of Mary Bay along Yellowstone Lake in Yellowstone National Park. If you look closely you can see steam from fumaroles on the Point rising from behind this row of lodgepole pines (Pinus contorta subsp. latifolia.
Hverir is a geothermal zone at the foot of the Namajfall mountain. Its main features are fumaroles, steam vents, colorful hot springs and bubbling mud. The site is sometimes called Hverarönd or Namaskard. The vegetation-free atmosphere makes you feel as if you've been transported to another planet. Winter is not the best time to visit, however; the mud makes the experience less pleasant.
Hverir is a geothermal zone at the foot of the Namajfall mountain. Its main features are fumaroles, steam vents, colorful hot springs and bubbling mud. The site is sometimes called Hverarönd or Namaskard. The vegetation-free atmosphere makes you feel as if you've been transported to another planet. Winter is not the best time to visit, however; the mud makes the experience less pleasant.
A volcanic fumarole, aided by a stiff west breeze, poured forth its heated vapors over the highway along the east shore of Yellowstone Lake. I was intrigued by the turbulence pattern created by the local geography and snapped this picture just as a Jeep carrying visitors to Yellowstone National Park rounded the bend.
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Ollagüe (Spanish pronunciation: [oˈʎaɣwe]) or Ullawi (Aymara: [uˈʎawi]) is a massive andesite stratovolcano in the Andes on the border between Bolivia and Chile, within the Antofagasta Region of Chile and the Potosi Department of Bolivia. Part of the Central Volcanic Zone of the Andes, its highest summit is 5,868 metres (19,252 ft) above sea level and features a summit crater that opens to the south. The western rim of the summit crater is formed by a compound of lava domes, the youngest of which features a vigorous fumarole that is visible from afar.
Ollagüe is mostly of Pleistocene age. It started developing more than one million years ago, forming the so-called Vinta Loma and Santa Rosa series mostly of andesitic lava flows. A fault bisects the edifice and two large landslides occurred in relation to it. Later two groups of dacitic lava domes formed, Ch'aska Urqu on the southeastern slope and La Celosa on the northwestern. Another centre named La Poruñita formed at that time on the western foot of the volcano, but it is not clear whether it is part of the main Ollagüe system. Activity at the summit continued during this time, forming the El Azufre sequence.
Source: wikipedia
The Reykjanes peninsula is a region particularly rich in geothermal phenomena due to the high level of volcanic activity. The mid-Atlantic ridge rises to the surface in the Krysuvik region, and there are numerous lava fields, fissures, solfataras, mud pots and other hot springs. This volcanic activity can be seen in particular at the Seltún site.
Trillium Lake:
Located on the southern flank of Mt. Hood, Trilliium lake was created in 1960 by the Department of Fish and Wildlife. The dam construted at its southern end flooded a marsh area (Mud Lake) containing part of the Oregon trail, know as Barlow Road.
Although Mt Hood appears quiet, this volcano is still considered active. Several fumaroles (Crater Rock, Hot Rocks, Devil's Kitchen and the base of Steel Clif ) near the top still vent gases containing hydrogen sulfide and methane.
Skies still full of smoke-haze from fires in western Canada.
DSC_3730-3c2_AP2_c50r90q
Hverir geothermal area located near Lake Mývatn is full of natural steam vents and bubbling mud pools. Everything arould smells of sulphur.
PUBLISHED:
www.networksinaction.report/sdsn-great-lakes/
technologyandsociety.org/the-montreal-statement-on-sustai...
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Kilimanjaro with its three volcanic cones, "Kibo", "Mawenzi", and "Shira", is a dormant volcano in Tanzania. It is the highest mountain in Africa, about 4,900 metres (16,100 ft) from its base, and 5,895 metres (19,341 ft) above sea level. The mountain is part of the Kilimanjaro National Park and is a major climbing destination. The mountain has been the subject of many scientific studies because of its shrinking glaciers and disappearing ice fields. Mawenzi and Shira are extinct, while Kibo is dormant and could erupt again. Uhuru Peak is the highest summit on Kibo's crater rim.
Both Mawenzi and Kibo began erupting about 1 million years ago. They are separated by the "Saddle Plateau" at 4,400 metres.
Kibo is the largest cone and is more than 15 miles (24 km) wide at the "Saddle Plateau" altitude. The last activity here has been dated to between 150,000 and 200,000 years ago and created the current Kibo summit crater. Kibo still has gas-emitting fumaroles in the crater. Kibo is capped by an almost symmetrical cone with escarpments rising 180 metres (590 ft) to 200 metres (660 ft) on the south side. These escarpments define a 2.5-kilometre-wide (1.6 mi) caldera caused by the collapse of the summit. Within this caldera is the Inner Cone and within the crater of the Inner Cone is the Reusch Crater, which the Tanganyika government in 1954 named after Gustav Otto Richard Reusch upon his climbing the mountain for the 25th time (out of 65 attempts during his lifetime). The Ash Pit, 350 metres (1,150 ft) deep, lies within the Reusch Crater. About 100,000 years ago, part of Kibo's crater rim collapsed, creating the area known as the Western Breach and the Great Barranco.[19]
Kibo has more than 250 parasitic cones on its northwest and southeast flanks that were formed between 150,000 and 200,000 years ago and erupted picrobasalts, trachybasalts, ankaramites, and basanites. They reach as far as Lake Chala and Taveta in the southeast and the Lengurumani Plain in the northwest. Most of these cones are well preserved, with the exception of the Saddle Plateau cones that were heavily affected by glacial action. Despite their mostly small size, lava from the cones has obscured large portions of the mountain. The Saddle Plateau cones are mostly cinder cones with terminal effusion of lava, while the Upper Rombo Zone cones mostly generated lava flows. All Saddle Plateau cones predate the last glaciation.
El Tatio Geothermal Field is a fascinating natural wonder located in the Andes Mountains of northern Chile, known for its spectacular geysers and other geothermal features. Here's what I know about it:
Location and Size:
Situated at a staggering altitude of 4,320 meters (14,170 feet) above sea level, making it the highest geyser field in the world.
Covers an area of about 30 square kilometers (12 square miles), ranking as the third-largest geyser field in the world and the largest in the Southern Hemisphere.
Geothermal Features:
Home to around 80 geysers and hot springs, scattered across two main sections: the northern and southern fields.
These geysers erupt with steam and hot water, creating a dramatic and otherworldly spectacle, especially at sunrise when the air is cold and the contrast is most striking.
The geothermal field also boasts fumaroles, vents that release hot gases and steam, and mudpots, areas of boiling mud.
Formation and Significance:
Formed by the heat from a magma chamber located deep beneath the Earth's surface.
This heat source also powers the geothermal activity, making El Tatio a valuable resource for generating renewable energy.
The field is also an important scientific site, offering insights into geothermal processes and the history of the Andes Mountains.
Tourism:
A popular tourist destination, attracting visitors from around the world who come to witness the geysers and experience the unique landscape.
Tours are available to take visitors to the geyser field, often departing early in the morning to catch the sunrise spectacle.
It's important to be aware of the high altitude and dress warmly, as temperatures can drop significantly at night.
Additional facts:
The name "El Tatio" is derived from the Kunza word for "grandfather."
The geysers erupt unpredictably, ranging in height from a few meters to several meters.
The surrounding area is home to diverse flora and fauna, including vicuñas, llamas, and alpacas.
The Námafjall Geothermal Area is located in Northeast Iceland, on the east side of Lake Mývatn.
At this area, also known as Hverir, you will see many smoking fumaroles and boiling mud pots, surrounded by sulphur crystals of many different colours. This sulphur gives the area an overwhelming smell of egg.
The history of the “pinnacles” began about 7,700 years ago when the eruptions of Mt. Mazama were reaching their climax. Torrents of red-hot, gas-charged pumice poured down Mazama’s slopes at speeds of up to 100 mph (160 kph). On top of this came a flow of heavier rocks called scoria. These glowing avalanches flooded downslope for many miles, leaving deep deposits in their wake.
Temperatures in the deposits may have exceeded 750 degrees Fahrenheit (400 degrees Celsius). Plumes of vapors appeared, as gases escaped from the settling rocks through vents called fumaroles. Minerals in the gasses combined with extreme heat, welded the sides of the fumaroles in the shape of slender cones. Since then, streams have eroded the canyon through the deposits, exposing the cones. Many of these fossil fumaroles are hollow.
Sur le site , il ne faut pas confondre les diverses manifestations de volcanisme.
- une fumerolle est une fissure émettant des panaches de fumées sulfureuses et de la vapeur d'eau ;
- une source chaude est un bassin thermal ;
- une mare de boue est un petit lac d'eau bouillonnante brassant des sédiments à sa surface ;
- une mofette est un puits d'eau chaude avec des remontées de bulles de gaz parfois toxiques.
-le geyser ( qui sur le site de Hveravellir) est seulement l'amorce de ce que l'on verra en très grand sur le site de Geysir.....
On the site, one should not confuse the various manifestations of volcanism.
- a fumarole is a crack emitting plumes of sulphurous fumes and water vapor;
- a hot spring is a thermal basin;
- a mud pool is a small lake of bubbling water mixing sediment on its surface;
- a mofette is a hot water well with sometimes toxic gas bubbles rising.
-the geyser (which on the Hveravellir site) is only the beginning of what we will see in very large size on the Geysir site ....
-Les fumaroles deixen anar constantment un plomall de vapor carregat amb gas sulfurós, partícules volcàniques, sílice i sofre. Els colors són impressionants.
-Las fumarolas sueltan constantemente vapor cargado con gas sulfuroso, partículas volcánicas, sílice y azufre. Los colores son impresionantes.
-A fumarole constantly lets out a steam plume laden with sulphurous gas, volcanic particles, silica and sulfur. The colors are impressive.
The Reykjanes peninsula is a region particularly rich in geothermal phenomena due to the high level of volcanic activity. The mid-Atlantic ridge rises to the surface in the Krysuvik region, and there are numerous lava fields, fissures, solfataras, mud pots and other hot springs. This volcanic activity can be seen in particular at the Seltún site.
Hverir (Surreal Namafjall geothermal area) 20210720
Hverir Iceland is one of the most out-of-this-world sites on the island. It is a place where you feel connected to the power of the planet. At the foot of the Namafjall volcanic mountain, the Namaskard geothermal area displays fumaroles, large mud pools, steam vents, and a bare orangy-red landscape.
Source www.zigzagonearth.com
The Reykjanes peninsula is a region particularly rich in geothermal phenomena due to the high level of volcanic activity. The mid-Atlantic ridge rises to the surface in the Krysuvik region, and there are numerous lava fields, fissures, solfataras, mud pots and other hot springs. This volcanic activity can be seen in particular at the Seltún site.
Hverir is a magical area in Northern Iceland that boasts a lunar-like landscape of bubbling mud pots, steaming vents and fumaroles.
The powerful stench of sulphur is a small price to pay to view one of Iceland's most ethereal landscapes.
This is beautiful mud springs formed after an earthquake in May, 2008. It is located in a area of hot springs across the Varmá ('Warm River') from the town of Hveragerði (means Hots Springs Yard in Icelandic) that is labeled Hveramel on some maps. ( Hveramel means hot springs in Icelandic.) The relatively quiet thermal area had long been the source of geothermal water and steam that heated greenhouses and homes. But the 2008 earthquake caused the area to roar back to life. During the quake, loud thumps were heard. A greenhouse near in the area collaped. Northeast-southwest trending fissures opened and mud volcanoes/ mud springs formed along the fissures and spewed fountains of mud. The largest of these hot mud springs, Leirgerður, sent mud jets 3 to 4 meters (10 to 13 feet) into the air for days after the earthquake. On this day, 9 years after the quake, the main pool was a pretty redish pink but vents nearby spit up mud and steam. There are several other hot springs, mud pots and fumaroles in the area still active along the fissures caused by the quake.
On June 6, 1912 a volcano later named Novarupta sent ash into the sky as high as 20 miles. Ash and pumice from the eruption also rushed down the Ukak River valley as pyroclastic flows and surges moving at more than 100 miles per hour, transforming the valley into 40 square miles of barren ash. Heat trapped in the ash took decades to cool. Any water buried by the ash or that percolated into it flashed into steam. The vents where the superheated steam emerged became the fumaroles that inspired the name Valley of Ten Thousand Smokes. (National Park Service)
«Il Parco naturalistico delle Biancane è un’area naturale ricca di manifestazioni geotermiche e per questo paragonata alle terre d’Islanda. Passeggiando al suo interno si possono ammirare soffioni, fuoriuscite di vapore dal terreno, putizze e fumarole. Il nome Biancane deriva dal bianco delle rocce: le emissioni di idrogeno solforato causano la reazione chimica con il calcare trasformandolo in gesso. Il vapore esce dalle fratture della roccia ad una temperatura di circa cento gradi centigradi. In corrispondenza degli sbocchi di vapore si formano cristalizzazioni di zolfo. Tutte le rocce si prensentano alterate dalla circolazione dei fluidi geotermici con la comparsa di colori meravigliosi e assolutamente unici».
"The Biancane Natural Park is a natural area rich in geothermal manifestations and for this reason compared to the lands of Iceland. Walking inside you can admire shower heads, steam leaks from the ground, putizze and fumaroles. The name Biancane derives from the white of the rocks: the emissions of hydrogen sulphide cause the chemical reaction with the limestone transforming it into gypsum. The vapor comes out of the fractures of the rock at a temperature of about one hundred degrees centigrade. Sulfur crystallizations are formed at the steam outlets. All the rocks appear altered by the circulation of geothermal fluids with the appearance of wonderful and absolutely unique colors ».
A power plant sits near the east end of the Grey Lagoon in the middle of the Reykjanes (Gunnuhver) Geothermal Field west of Grindavík, Iceland.
Le Leirhnjúkshraun est un champ de lave situé dans le Nord-Est de l'Islande.
Ce champ de lave fait suite à l'éruption du volcan Krafla en 1984. Il est encore chaud et fumant et est aujourd'hui un site touristique.
Les fissures du volcan Leirhnjúkur s'étendent sur près de 20 kilomètres et la coulée de Leirhnjùkshraun est encore fumante plusieurs dizaines d'années après les dernières éruptions.
Le Leirhnjúkur est situé au centre de la caldeira de Krafla et fut l'un des endroits où les éruptions furent les plus longues et les plus violent On y trouve un peu partout des solfatares et autres fumerolles avec des odeurs de soufre, mais aussi des mares de boue bouillonnantes.
The Leirhnjúkshraun is a lava field located in the North East of Iceland.
This lava field follows the eruption of the Krafla volcano in 1984. It is still hot and smoking and is today a tourist site.
The cracks of the Leirhnjúkur volcano extend for nearly 20 kilometers and the Leirhnjùkshraun flow is still smoking several decades after the last eruptions.
The Leirhnjúkur is located in the center of the Krafla caldera and was one of the places where the eruptions were the longest and most violent.We find there almost everywhere solfatares and other fumaroles with smells of sulfur, but also ponds bubbling mud.
trad google
The Fountain Paint Pot area in Yellowstone has several springs, pools, geysers, a fumarole, and the Fountain Paint Pot. Yellowstone National Park.
This trail is an easy 0.5 mile (0.8 km) loop boardwalk. You will see various hydrothermal features that are expressions of Yellowstone's volcanism. No two features are exactly alike, yet they can be grouped into those with a lot of water (hot springs and geysers) and those with limited water (mud pots and fumaroles).
Steam rises from fumaroles at Steamboat Point along Mary Bay (Yellowstone lake) on a chilly October Day in Yellowstone National Park, Wyoming.
Surrounded by geothermal wells and power plant facilities, a geothermal drilling rig sits in the middle of the Reykjanes (Gunnuhver) Geothermal Field , west of Grindavík, Iceland. The lake in the middle of the photo is called by some the “Grey Lagoon”, after the famous Blue Lagoon which is a tourist attraction at a power plant northeast of this location on the Reykjanes Peninsula. Along the left side of the lake shore is a group of hot springs and mudpots called the Power Plant Group.
"Let Nature Be Your Guide"
As a nature and landscape photographer there are a few places that have been on wish list to visit and capture with my camera. The Hot Creek Geological Site in the Sierra Nevada Mountain Range was one of them.
From their site: Hot Creek is a place to marvel at geology in action. Boiling water bubbling up from the creek bed, fumaroles and periodic geyser eruptions at Hot Creek attest to the chamber of hot magma which lies about three miles below the surface of the earth in this area.
The steam you see along the Hot Creek drainage is created when water percolates deep into the ground and enters a complex underground plumbing system. The water is heated and pressurized before it rises to the earth's surface. It is believed this journey takes around 1000 years.
Earthquakes can cause sudden geyser eruptions and overnight appearances of new hot springs at Hot Creek. Water temperatures can change rapidly, and so entering the water is prohibited.
The Valle Grande is the largest of several grass valleys in the Valles Caldera. Valles Caldera is a 13.7-mile (22.0 km) wide extinct volcanic caldera in the Jemez Mountains of northern New Mexico. Hot springs, streams, fumaroles, natural gas seeps and volcanic domes dot the caldera floor landscape. It was a real treat to see it blanketed in fresh snow.
Thanks for stopping by and for all of your kind comments, awards and faves -- I appreciate them all. We will be home tomorrow and I hope to catch up in the next couple of days.
© Melissa Post 2019
iPhone 12 Pro. 8621.1
The Námafjall Geothermal Area is located in Northeast Iceland, on the east side of Lake Mývatn. At this area, also known as Hverir, you will see many smoking fumaroles and boiling mud pots, surrounded by sulphur crystals of many different colours. This sulphur gives the area an overwhelming smell of egg.
Hverir 20210720
Hverir is one of the most active geothermal areas in all of Iceland. Also known as Hverarönd, this region stands out for its ochre-colored landscapes and the numerous fumaroles and boiling mud pools dotted over its moon-like terrain.
Despite the intense smell of sulfur, its curious geothermal activity entices visitors to walk along Hverir's trails and marvel at the natural wonders of Earth. Due to the high heats of the subsoil at Hverir, it's very important not to leave the signposted paths, both to preserve the impressive landscapes and to avoid getting burned by the steam from the fumaroles or putting your foot in a boiling mire!
Source Civitatis Iceland.
Yellowstone Lake
Yellowstone National Park
Wyoming
The holes are dormant fumaroles, which sometimes vent steam or gases.
From the 2021 archives.
Thanks for stopping by!
© Melissa Post 2025
A mud pool or mud pot, is a sort of acidic hot spring or fumarole with limited water. It usually takes the form of a pool of bubbling mud. The acid and microorganisms decompose surrounding rock into clay and mud.
The mud takes the form of a viscous, often bubbling, slurry. As the boiling mud is often squirted over the brims of the mud pot, a sort of mini-volcano of mud starts to build up, sometimes reaching heights of 3-5 feet. The mud is generally stained with reddish or pink spots from iron compounds.
Info from Wikipedia
The above mud pool is located in the Haukadalur Valley at the base of Laugarfjall hill near the famous Strokkur Geyser.
Image taken while standing behind the rope.
Thank you for your comments,
Gemma
A fumarole in the high-temperature geothermal field of Namaskard (near Akureyri), Iceland.
For a high resolution full screen view of my photos, please visit: www.pictographica.net
UPDATED: 14th August, 2017
Explore Nov 25, 2008 # 118
Le fumarole alle prime luci dell'alba sull'altipiano inospitale di Sol de Mañana a 5000 metri slm e -21°C.
Fumaroles at the peep of day in the inhospitable highlands of Sol de Mañana, 5000 mt above sea level and - 21C.
The shy vicuñas are known for their soft and valuable fur. With their long, silky coats and slender builds, vicuñas are impressive animals that live in the high Andean highlands.
They belong to the Camelidae family.
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Die scheuen Vicuñas sind bekannt für ihr weiches + wertvolles Fell. Mit ihrem langen, seidigen Fell und ihrem schlanken Körperbau sind die Vicuñas beeindruckende Tiere, die in den Hochebenen der Anden leben.
Sie gehören zur Familie der Camelidae.
This photo always reminds me of that Tolkien's phrase. The lava fields of Krafla, from the eighties, are a huge desolation that reaches to the horizon, sprinkled with craters and fumaroles. Krafla - Iceland 2018