Yellowstone river and valleys
Photographed from our running bus.
My first experience about YNP
We entered Yellowstone NP through the eastern entrance using U.S. Route 14. It had been a moderate snow fall in the end of the first week of October, 2017. From few kilometers before reaching Yellowstone Lake, remnants of devastating wild fire were being evident. It was a shocking sight for me at the beginning and could not perceive how fire had devastated hundreds of acres of alpine forests in the valleys and atop the hills. But when I had a closer look to the floor of the forests, I was amazed by the facts how nature maintains its ecological balance! Numerous tiny siblings are growing besides the burnt and decaying logs. The future forests of the park are coming alive.
The park seemed to me the world’s finest natural laboratory and archive to study and understand all the faculties of human intellect.
The qualities of the photographs are not satisfactory, because they were taken so fast through the glass windows of our running bus. But I didn’t want to miss such life time opportunities. The overall beauties were essentially more important than technicalities, as I always believe.
Our luck didn’t favor anyway in this park trip, when our tour guide had declared a forecast for heavy snowfall next day since morning. He therefore decided to visit as many spots as possible in a single day, and not to wait for day-2. I hurried through the trails taking as many snaps as possible.
The next day heavy snowfall started since 9 am, and our guide cancelled the day-2 trip. Thanks God…we covered somehow all the spots on the first day.
I hope, you may like my Yellowstone series…
A quick overview of YNP
Yellowstone National Park is an American national park located in Wyoming, Montana, and Idaho. Approximately 96 percent of the land area of Yellowstone National Park is located within the state of Wyoming. The Park spans an area of 8,983 km2 comprising lakes, canyons, rivers and mountain ranges. The park is known for its wildlife and its many geothermal features. It has many types of ecosystems, but the subalpine forest is the most abundant. It is part of the South Central Rockies forests eco-region.
It was established by the U.S. Congress and signed into law by President Ulysses S. Grant on March 1, 1872. Yellowstone was the first national park in the U.S. and is also widely held to be the first national park in the world. Native Americans have lived in the Yellowstone region for at least 11,000 years. Aside from visits by mountain -men during the early to mid-19th century, organized exploration did not begin until the late 1860s.
The park contains the headwaters of the Yellowstone River, from which it takes its historical name. Although it is commonly believed that the river was named for the yellow rocks seen in the ‘Grand Canyon of the Yellowstone’, the Native American name source is unclear.
Yellowstone Lake is one of the largest high-elevation lakes in North America and is centered over the Yellowstone Caldera, the largest supervolcano on the continent. The caldera is considered as an active volcano. It has erupted with tremendous force several times in the last two million year. The Yellowstone Caldera is the largest volcanic system in North America. It has been termed a "supervolcano" because the caldera was formed by exceptionally large explosive eruptions. The magma chamber that lies under Yellowstone is estimated to be a single connected chamber, about 60 km long, 29 km wide, and 5 to 12 km deep. Yellowstone Lake is up to 400 feet deep and has 180 km of shoreline.The lake is at an elevation of 7,733 feet above sea levels. Half of the world's geysers and hydrothermal features are there in Yellowstone, fueled by this ongoing volcanism. Lava and rocks from volcanic eruptions cover most of the land area of Yellowstone. The park is the centerpiece of the Greater Yellowstone Ecosystem, the largest remaining nearly-intact ecosystem in the Earth's northern temperate zone. In 1978, Yellowstone was named a UNESCO World Heritage Site.
In May 2001, the U.S. Geological Survey, Yellowstone National Park, and the University of Utah created the Yellowstone Volcano Observatory (YVO), a partnership for long-term monitoring of the geological processes of the Yellowstone Plateau volcanic field, for disseminating information concerning the potential hazards of this geologically active region.
Hundreds of species of mammals, birds, fish, and reptiles have been documented, including several that are either endangered or threatened. The vast forests and grasslands also include unique species of plants. Yellowstone Park is the largest and most famous mega fauna location in the contiguous United States. Grizzly bears, wolves, and free-ranging herds of bison and elk live in this park. The Yellowstone Park bison herd is the oldest and largest public bison herd in the United States.
Forest fires occur in the park each year. In the largest forest fires of 1988, nearly one third of the park was burnt.
Yellowstone has numerous recreational opportunities, including hiking, camping, boating, fishing and sightseeing. Paved roads provide close access to the major geothermal areas as well as some of the lakes and waterfalls. During the winter, visitors often access the park by way of guided tours that use either snow coaches or snowmobiles.
Fire in Yellowstone NP:
Causes of wildfire in Yellowstone NP
Wildfire has had a role in the dynamics of Yellowstone’s ecosystems for thousands of years. Although many fires were caused by human activities, most ignitions were natural. The term "natural ignition" usually refers to a lightning strike. Afternoon thunderstorms occur frequently in the northern Rocky Mountains but release little precipitation, a condition known as ‘dry lightning’. In a typical season there are thousands of lightning strikes in Yellowstone. Lightning strikes are powerful enough to rip strips of bark off of a tree in a shower of sparks and blow the pieces up to 100 feet away. However, most lightning strikes do not result in a wildfire because fuels are not in a combustible state.
The great fire incidence of 1988
The Yellowstone fires of 1988 collectively formed the largest wildfire in the recorded history of Yellowstone National Park in the United States. Starting as many smaller individual fires, the flames quickly spread out of control due to drought conditions and increasing winds, combining into one large conflagration which burned for several months. The fires almost destroyed two major visitor destinations and, on September 8, 1988, the entire park closed to all non-emergency personnel for the first time in its history. Only the arrival of cool and moist weather in the late autumn brought the fires to an end. A total of 793,880 acres, or 36 percent of the park was affected by the wildfires.
Fire incidence, 2016
As of September 21, 2016, 22 fires (human and lightning-caused) have burned more than 62,000 acres in Yellowstone National Park, making it the highest number of acres burned since the historic 1988 fire.
Heritage and Research Center
The Heritage and Research Center is located at Gardiner, Montana, near the north entrance to the park. The center is home to the Yellowstone National Park's museum collection, archives, research library, historian, archeology lab, and herbarium. The Yellowstone National Park Archives maintain collections of historical records of Yellowstone and the National Park Service. The collection includes the administrative records of Yellowstone, as well as resource management records, records from major projects, and donated manuscripts and personal papers. The archives are affiliated with the National Archives and Records Administration.
Geothermal features of Yellowstone NP- A brief note:
There are four geothermal features found in the park – Hot springs, Geysers, Fumaroles , and Mud volcanoes/pots.
What is a Hot spring?
Hot spring, also called thermal spring, spring with water at temperatures substantially higher than the air temperature of the surrounding region. Most hot springs discharge groundwater that is heated by shallow intrusions of magma (molten rock) in volcanic areas.
Some thermal springs, however, are not related to volcanic activity. In general, the temperature of rocks within the earth increases with depth. The rate of temperature increase with depth is known as the geothermal gradient. In such cases, the water is heated by convective circulation: groundwater percolating downward reaches depths of a kilometre or more where the temperature of rocks is high because of the normal temperature gradient of the Earth’s crust—about 30 °C / kilometer in the first 10 km. The water from hot springs in non-volcanic areas is heated in this manner.
But in active volcanic zones such as Yellowstone National Park, water may be heated by coming into contact with magma (molten rock). The high temperature gradient near magma may cause water to be heated enough that it boils or becomes superheated. If the water becomes so hot that it builds steam pressure and erupts in a jet above the surface of the Earth, it is called a geyser.
[ Warm springs are sometimes the result of hot and cold springs mixing. They may occur within a volcanic area or outside of one. One example of a non-volcanic warm spring is Warm Springs, Georgia (frequented for its therapeutic effects by paraplegic U.S. President Franklin D. Roosevelt, who built the Little White House there) ].
List of hot springs:
[ en.wikipedia.org/wiki/List_of_hot_springs ]
The science of colors of a hot spring:
[ ttps://www.britannica.com/science/hot-spring]
Many of the colours in hot springs are caused by thermophilic (heat-loving) microorganisms, which include certain types of bacteria, such as cyanobacteria, and species of archaea and algae. Many thermophilic organisms grow in huge colonies called mats that form the colourful scums and slimes on the sides of hot springs. The microorganisms that grow in hot springs derive their energy from various chemicals and metals; potential energy sources include molecular hydrogen, dissolved sulfides, methane, iron, ammonia, and arsenic. In addition to geochemistry, the temperature and pH of hot springs play a central role in determining which organisms inhabit them.
Examples of thermophilic microorganisms found in hot springs include bacteria in the genera Sulfolobus, which can grow at temperatures of up to 90 °C (194 °F), Hydrogenobacter, which grow optimally at temperatures of 85 °C (185 °F), and Thermocrinis, which grow optimally at temperatures of 80 °C (176 °F). Thermophilic algae in hot springs are most abundant at temperatures of 55 °C (131 °F) or below.
What is a Geyser?
A geyser is formed when water collecting below the surface is heated by a magma source. When the water boils, it rises to the surface. If the water has an unobstructed path, it will pool on the surface in the form of a steaming hot springs. If the passage of the water is imposed upon, the pressure will increase. When the pressure becomes too great, the water converts into to steam. Steam takes up 1,500 times the volume of water, and at this point, the pressure becomes so intense that the steam and surrounding water droplets shoot out of the ground in geyser form, erupting until the pressure has abated and the process starts all over again.
What is a fumarole?
It’s a vent in the Earth’s surface from which steam and volcanic gases are emitted. The major source of the water vapour emitted by fumaroles is groundwater heated by bodies of magma lying relatively close to the surface. Carbon dioxide, sulfur dioxide, and hydrogen sulfide are usually emitted directly from the magma. Fumaroles are often present on active volcanoes during periods of relative quiet between eruptions.
Fumaroles are closely related to hot springs and geysers. In areas where the water table rises near the surface, fumaroles can become hot springs. A fumarole rich in sulfur gases is called a solfatara; a fumarole rich in carbon dioxide is called a mofette. If the hot water of a spring only reaches the surface in the form of steam, it is called a fumarole. [ www.britannica.com/science/fumarole ]
What is a mud volcano/ mud pot/ paint pot?-
Usually mud volcanoes are created by hot-spring activity where large amounts of gas and small amounts of water react chemically with the surrounding rocks and form a boiling mud.
Geo-chemistry of mud volcano: Hydrogen sulfide gas rising from magma chamber, as in Yellowstone’s, causes the rotten-egg smell. Microorganisms, or thermophiles, use this gas as a source of energy, and then help turn the gas into sulfuric acid. The acid then breaks down the rocks and soil into mud. Many of the colors seen are vast communities of thermophiles, but some of the yellow is pure sulfur. When iron mixes with sulfur to form iron sulfide, gray and black swirls sometimes appear in the mud (From description of the display board in the park).
If the water of a hot spring is mixed with mud and clay, it is called a mud pot. Variations are the porridge pot (a basin of boiling mud that erodes chunks of the surrounding rock) and the paint pot (a basin of boiling mud that is tinted yellow, green, or blue by minerals from the surrounding rocks).
There are other mud volcanoes, entirely of a nonigneous origin, occur only in oil-field regions that are relatively young and have soft, unconsolidated formations.
Sources: [ www.britannica.com/science/mud-volcano ], and display boards of the YNP.
A Quick Overview Map of Yellowstone
(www.yellowstonepark.com/park/overview-map-yellowstone)
Free Yellowstone Trip Planner:
( www.yellowstonepark.com/travel-guides/yellowstone-trip-pl...)
8 Best Yellowstone Geyser Basins and Map
( www.yellowstonepark.com/things-to-do/yellowstone-geyser-b... )
National Park Maps
( www.yellowstonepark.com/park/national-park-maps )
Interactive map of ALL Yellowstone thermal features at the Yellowstone Research Coordination Network
Yellowstone river and valleys
Photographed from our running bus.
My first experience about YNP
We entered Yellowstone NP through the eastern entrance using U.S. Route 14. It had been a moderate snow fall in the end of the first week of October, 2017. From few kilometers before reaching Yellowstone Lake, remnants of devastating wild fire were being evident. It was a shocking sight for me at the beginning and could not perceive how fire had devastated hundreds of acres of alpine forests in the valleys and atop the hills. But when I had a closer look to the floor of the forests, I was amazed by the facts how nature maintains its ecological balance! Numerous tiny siblings are growing besides the burnt and decaying logs. The future forests of the park are coming alive.
The park seemed to me the world’s finest natural laboratory and archive to study and understand all the faculties of human intellect.
The qualities of the photographs are not satisfactory, because they were taken so fast through the glass windows of our running bus. But I didn’t want to miss such life time opportunities. The overall beauties were essentially more important than technicalities, as I always believe.
Our luck didn’t favor anyway in this park trip, when our tour guide had declared a forecast for heavy snowfall next day since morning. He therefore decided to visit as many spots as possible in a single day, and not to wait for day-2. I hurried through the trails taking as many snaps as possible.
The next day heavy snowfall started since 9 am, and our guide cancelled the day-2 trip. Thanks God…we covered somehow all the spots on the first day.
I hope, you may like my Yellowstone series…
A quick overview of YNP
Yellowstone National Park is an American national park located in Wyoming, Montana, and Idaho. Approximately 96 percent of the land area of Yellowstone National Park is located within the state of Wyoming. The Park spans an area of 8,983 km2 comprising lakes, canyons, rivers and mountain ranges. The park is known for its wildlife and its many geothermal features. It has many types of ecosystems, but the subalpine forest is the most abundant. It is part of the South Central Rockies forests eco-region.
It was established by the U.S. Congress and signed into law by President Ulysses S. Grant on March 1, 1872. Yellowstone was the first national park in the U.S. and is also widely held to be the first national park in the world. Native Americans have lived in the Yellowstone region for at least 11,000 years. Aside from visits by mountain -men during the early to mid-19th century, organized exploration did not begin until the late 1860s.
The park contains the headwaters of the Yellowstone River, from which it takes its historical name. Although it is commonly believed that the river was named for the yellow rocks seen in the ‘Grand Canyon of the Yellowstone’, the Native American name source is unclear.
Yellowstone Lake is one of the largest high-elevation lakes in North America and is centered over the Yellowstone Caldera, the largest supervolcano on the continent. The caldera is considered as an active volcano. It has erupted with tremendous force several times in the last two million year. The Yellowstone Caldera is the largest volcanic system in North America. It has been termed a "supervolcano" because the caldera was formed by exceptionally large explosive eruptions. The magma chamber that lies under Yellowstone is estimated to be a single connected chamber, about 60 km long, 29 km wide, and 5 to 12 km deep. Yellowstone Lake is up to 400 feet deep and has 180 km of shoreline.The lake is at an elevation of 7,733 feet above sea levels. Half of the world's geysers and hydrothermal features are there in Yellowstone, fueled by this ongoing volcanism. Lava and rocks from volcanic eruptions cover most of the land area of Yellowstone. The park is the centerpiece of the Greater Yellowstone Ecosystem, the largest remaining nearly-intact ecosystem in the Earth's northern temperate zone. In 1978, Yellowstone was named a UNESCO World Heritage Site.
In May 2001, the U.S. Geological Survey, Yellowstone National Park, and the University of Utah created the Yellowstone Volcano Observatory (YVO), a partnership for long-term monitoring of the geological processes of the Yellowstone Plateau volcanic field, for disseminating information concerning the potential hazards of this geologically active region.
Hundreds of species of mammals, birds, fish, and reptiles have been documented, including several that are either endangered or threatened. The vast forests and grasslands also include unique species of plants. Yellowstone Park is the largest and most famous mega fauna location in the contiguous United States. Grizzly bears, wolves, and free-ranging herds of bison and elk live in this park. The Yellowstone Park bison herd is the oldest and largest public bison herd in the United States.
Forest fires occur in the park each year. In the largest forest fires of 1988, nearly one third of the park was burnt.
Yellowstone has numerous recreational opportunities, including hiking, camping, boating, fishing and sightseeing. Paved roads provide close access to the major geothermal areas as well as some of the lakes and waterfalls. During the winter, visitors often access the park by way of guided tours that use either snow coaches or snowmobiles.
Fire in Yellowstone NP:
Causes of wildfire in Yellowstone NP
Wildfire has had a role in the dynamics of Yellowstone’s ecosystems for thousands of years. Although many fires were caused by human activities, most ignitions were natural. The term "natural ignition" usually refers to a lightning strike. Afternoon thunderstorms occur frequently in the northern Rocky Mountains but release little precipitation, a condition known as ‘dry lightning’. In a typical season there are thousands of lightning strikes in Yellowstone. Lightning strikes are powerful enough to rip strips of bark off of a tree in a shower of sparks and blow the pieces up to 100 feet away. However, most lightning strikes do not result in a wildfire because fuels are not in a combustible state.
The great fire incidence of 1988
The Yellowstone fires of 1988 collectively formed the largest wildfire in the recorded history of Yellowstone National Park in the United States. Starting as many smaller individual fires, the flames quickly spread out of control due to drought conditions and increasing winds, combining into one large conflagration which burned for several months. The fires almost destroyed two major visitor destinations and, on September 8, 1988, the entire park closed to all non-emergency personnel for the first time in its history. Only the arrival of cool and moist weather in the late autumn brought the fires to an end. A total of 793,880 acres, or 36 percent of the park was affected by the wildfires.
Fire incidence, 2016
As of September 21, 2016, 22 fires (human and lightning-caused) have burned more than 62,000 acres in Yellowstone National Park, making it the highest number of acres burned since the historic 1988 fire.
Heritage and Research Center
The Heritage and Research Center is located at Gardiner, Montana, near the north entrance to the park. The center is home to the Yellowstone National Park's museum collection, archives, research library, historian, archeology lab, and herbarium. The Yellowstone National Park Archives maintain collections of historical records of Yellowstone and the National Park Service. The collection includes the administrative records of Yellowstone, as well as resource management records, records from major projects, and donated manuscripts and personal papers. The archives are affiliated with the National Archives and Records Administration.
Geothermal features of Yellowstone NP- A brief note:
There are four geothermal features found in the park – Hot springs, Geysers, Fumaroles , and Mud volcanoes/pots.
What is a Hot spring?
Hot spring, also called thermal spring, spring with water at temperatures substantially higher than the air temperature of the surrounding region. Most hot springs discharge groundwater that is heated by shallow intrusions of magma (molten rock) in volcanic areas.
Some thermal springs, however, are not related to volcanic activity. In general, the temperature of rocks within the earth increases with depth. The rate of temperature increase with depth is known as the geothermal gradient. In such cases, the water is heated by convective circulation: groundwater percolating downward reaches depths of a kilometre or more where the temperature of rocks is high because of the normal temperature gradient of the Earth’s crust—about 30 °C / kilometer in the first 10 km. The water from hot springs in non-volcanic areas is heated in this manner.
But in active volcanic zones such as Yellowstone National Park, water may be heated by coming into contact with magma (molten rock). The high temperature gradient near magma may cause water to be heated enough that it boils or becomes superheated. If the water becomes so hot that it builds steam pressure and erupts in a jet above the surface of the Earth, it is called a geyser.
[ Warm springs are sometimes the result of hot and cold springs mixing. They may occur within a volcanic area or outside of one. One example of a non-volcanic warm spring is Warm Springs, Georgia (frequented for its therapeutic effects by paraplegic U.S. President Franklin D. Roosevelt, who built the Little White House there) ].
List of hot springs:
[ en.wikipedia.org/wiki/List_of_hot_springs ]
The science of colors of a hot spring:
[ ttps://www.britannica.com/science/hot-spring]
Many of the colours in hot springs are caused by thermophilic (heat-loving) microorganisms, which include certain types of bacteria, such as cyanobacteria, and species of archaea and algae. Many thermophilic organisms grow in huge colonies called mats that form the colourful scums and slimes on the sides of hot springs. The microorganisms that grow in hot springs derive their energy from various chemicals and metals; potential energy sources include molecular hydrogen, dissolved sulfides, methane, iron, ammonia, and arsenic. In addition to geochemistry, the temperature and pH of hot springs play a central role in determining which organisms inhabit them.
Examples of thermophilic microorganisms found in hot springs include bacteria in the genera Sulfolobus, which can grow at temperatures of up to 90 °C (194 °F), Hydrogenobacter, which grow optimally at temperatures of 85 °C (185 °F), and Thermocrinis, which grow optimally at temperatures of 80 °C (176 °F). Thermophilic algae in hot springs are most abundant at temperatures of 55 °C (131 °F) or below.
What is a Geyser?
A geyser is formed when water collecting below the surface is heated by a magma source. When the water boils, it rises to the surface. If the water has an unobstructed path, it will pool on the surface in the form of a steaming hot springs. If the passage of the water is imposed upon, the pressure will increase. When the pressure becomes too great, the water converts into to steam. Steam takes up 1,500 times the volume of water, and at this point, the pressure becomes so intense that the steam and surrounding water droplets shoot out of the ground in geyser form, erupting until the pressure has abated and the process starts all over again.
What is a fumarole?
It’s a vent in the Earth’s surface from which steam and volcanic gases are emitted. The major source of the water vapour emitted by fumaroles is groundwater heated by bodies of magma lying relatively close to the surface. Carbon dioxide, sulfur dioxide, and hydrogen sulfide are usually emitted directly from the magma. Fumaroles are often present on active volcanoes during periods of relative quiet between eruptions.
Fumaroles are closely related to hot springs and geysers. In areas where the water table rises near the surface, fumaroles can become hot springs. A fumarole rich in sulfur gases is called a solfatara; a fumarole rich in carbon dioxide is called a mofette. If the hot water of a spring only reaches the surface in the form of steam, it is called a fumarole. [ www.britannica.com/science/fumarole ]
What is a mud volcano/ mud pot/ paint pot?-
Usually mud volcanoes are created by hot-spring activity where large amounts of gas and small amounts of water react chemically with the surrounding rocks and form a boiling mud.
Geo-chemistry of mud volcano: Hydrogen sulfide gas rising from magma chamber, as in Yellowstone’s, causes the rotten-egg smell. Microorganisms, or thermophiles, use this gas as a source of energy, and then help turn the gas into sulfuric acid. The acid then breaks down the rocks and soil into mud. Many of the colors seen are vast communities of thermophiles, but some of the yellow is pure sulfur. When iron mixes with sulfur to form iron sulfide, gray and black swirls sometimes appear in the mud (From description of the display board in the park).
If the water of a hot spring is mixed with mud and clay, it is called a mud pot. Variations are the porridge pot (a basin of boiling mud that erodes chunks of the surrounding rock) and the paint pot (a basin of boiling mud that is tinted yellow, green, or blue by minerals from the surrounding rocks).
There are other mud volcanoes, entirely of a nonigneous origin, occur only in oil-field regions that are relatively young and have soft, unconsolidated formations.
Sources: [ www.britannica.com/science/mud-volcano ], and display boards of the YNP.
A Quick Overview Map of Yellowstone
(www.yellowstonepark.com/park/overview-map-yellowstone)
Free Yellowstone Trip Planner:
( www.yellowstonepark.com/travel-guides/yellowstone-trip-pl...)
8 Best Yellowstone Geyser Basins and Map
( www.yellowstonepark.com/things-to-do/yellowstone-geyser-b... )
National Park Maps
( www.yellowstonepark.com/park/national-park-maps )
Interactive map of ALL Yellowstone thermal features at the Yellowstone Research Coordination Network