Yellowstone is US first National Park. It is also the world’s oldest. The park was created in 1872. Today National Parks are established for purpose of conservation. These are designated areas of natural beauty, an island in a developing world. Today, Yellowstone National Park is probably the best known in the world and easily accessible. Wildlife abounds from the smallest to the largest mammals found in North America. The wolf, here, is a recovery story that is a major restoration of the balance of nature. There large herd of bison roaming in park, following their migration routes. Black and brown bears are frequently seen here. The park lies in the heart of the the Rocky Mountain Range. Here, powerful volcanic forces erupted 2 million, 1.3 million and as recently as 640,000 years ago, to create three of the world’s largest volcanic depressions, or calderas. Native Americans have lived in the region for at least 11,000 years. Today with large number of visitors, the management and control of the park is vital to ensure its long term future.

1. First created 12 Oct 2010. Version 3.0- 12 Jan 2018. Daperro. London.
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A Volcanic Wilderness in
Wyoming

2. Yellowstone is part of the Rocky. These mountains on the east side of the park.
Rocky Mountain in the east

3. The national park is located on a high plateau with the Continental Divide running through it. The rivers in
the north drained into the Gulf of Mexico. Those in the south drained into the Pacific. The National Park is
situated at the end of the Snake River valley, which funnelled moisture laden clouds to turn into rain and
snow. This is the reason why the park is covered with heavy snow in the winter.
Geography of Yellowstone

4. Supervolcano beneath the park
Past volcanoes in the area have erupted several times. The last three eruptions was 640,000, 1.3 million
and 2.1 million years ago, with power of several hundred to thousands of times than that of the power of
Mount St. Helens’ eruption. Eruption today could destroys Montana, Wyoming and Idaho, while half of the
US will be suffered damages. Source NG August 2009 p62.

5. Madison
An elk by the Madison River. West Entrance. Yellowstone National Park.

6. Madison
Madison River flows into R Missouri to the north. West Entrance. Yellowstone National Park.

7. Madison
A lone bison in the Madison River, which is a headwater tributary of the Missouri River.

8. Porcelain Basin, Norris
Porcelain basin is named after the milky colour mineral, siliceous sinter, deposited here.

9. Roaring Mountain, Norris
The mountain is covered with fumaroles. It was created about 12,000 to 30,000 years ago. With the
steam, hydrogen sulphide is also expelled.

10. Mammoth Hot Springs
The limestone terrace. The hot water feeds Mammoth comes from Norris Geyser Basin after traveling
underground via a fault line for some distance.

11. Mammoth Hot Springs
Steam coming out of the hot springs and pools on the main terrace. The terrace was created over
thousands of years deposits bought here by the hot water.

12. Mammoth Hot Springs
Canary Spring in sunrise. Mammoth Hot Spring.

13. Mammoth Hot Springs
Hot springs and changes of thermal activities kill off the trees. The area experiences frequent change in
thermal activities.

14. Mammoth Hot Springs
A tree branch in the clear water pool, covered with deposits and bacteria growth.

15. Mammoth Hot Springs
The White Elephant Back Terrace was created by water laden with calcium carbonate flows from a fissure
to build this ridge with snowy white terrace.

16. Lower Fall, Artist Point
The Yellowstone River turns from north-west to the north-east direction. The falls is 308 feet tall.

17. Lower Fall, Artist Point
The Lower Falls on the Yellowstone River at Artist Point, near Canyon Village. It is situated near the point
where the river turns from north-west to the north-east direction. The falls is 308 feet tall.

18. Lower Fall
The narrow river course and the multi-coloured soil just below the Lower Falls.

19. Lower Fall, River valley
The colour of the canyon wall are caused by oxidation of iron compounds in the rhyolite rock part of which
has been changed by heating, leading to the lost of water in the individual iron compounds and hydration
of minerals in the rocks.

20. Hayden Valley
There are some 4000-5000 bisons in the park. Hayden Valley. Yellowstone National Park.

21. Hayden Valley
A group of over a hundred bison on migration. Hayden Valley. Yellowstone National Park.

22. Mud Volcano
Super-heated water erupted as it reached the surface. Churning Caldron. Mud Volcano. Yellowstone

23. Wildlife
A Bighorn sheep in winter. Yellowstone National Park.

24. Wildlife
The Grizzly bear (North American brown bear)
is a large subspecies of brown bear, found in
North America. Normal they are not seen by
the tourists.
Comparison of N American bears.

25. Wildlife
On the other hand Black Bears are commonly seen at the park.

26. Wildlife
Wolves were eradicated over half a century ago. Since then they have been re-introduced and are doing
well. Yellowstone National Park.

27. Wildlife
The Bald Eagles population is now off the Endangered List and now reclassified as threatened in the
Yellowstone National Park.

28. Wildlife
The world’s largest species of owl by length. It is distributed across the Northern Hemisphere. Typically they catch
rodents like mice and squirrel. Yellowstone National Park.

29. Wildlife
Moose with its magnificent anglers. Yellowstone National Park.

30. Wildlife
A Pronghorn is indigenous to interior western and central North America. Yellowstone National Park.

31. Lower Geyser Basin
Lower Geyser Basin. Yellowstone National Park.

32. Fountain Paint Pot
The hiss and roar of the Fumaroles, as it expels steam of carbon dioxide and hydrogen sulphide. Fountain
Paint Pot Trail. near Old Faithful.

33. Fountain Paint Pot Trial
Mud pool, mudpot or paint pot is hot spring of bubbling mud. Sometimes it is stained with reddish or pink
spots of iron, a Red Spouter. Fountain Paint Pot Trail. near Old Faithful.

34. Fountain Geyser
Impressive eruption lasting 25 minutes or more. The Fountain Geyser, Lower Geyser Basin. Fountain
Paint Pot Trail. It is the dominant member of a group geysers in the vicinity.

35. Spasm Geyser in the Lower Geyser Basin, along the Fountain Paint Pot Trail. It is part of a group of
geysers.
Fountain Geyser

36. Midway Geyser Basin, Firestone River
Midway Geyser Basin has four large hot springs by the Firehole River.

37. The Grand Prismatic Spring. Midway Geyser Basin
The Grand Prismatic Spring is the largest hot spring in US. Midway Geyser Basin.

38. The Grand Prismatic Spring. Midway Geyser Basin
On the top from the left Opal Pool, Turquoise Pool and Excelsior Geyser Crater. The Grand Prismatic
Spring.

39. The Grand Prismatic Geyser. Midway Geyser Basin
The vivid colours art the result of microbial mats around the edges of the mineral rich water. In summer it
tends to be orange and red and usually dark green in winter. The Grand Prismatic Spring.

40. Excelsior Geyser Crater. Midway Geyser Basin
The boiling water from the Excelsior Spring overflowing into the Firehole River. Midway Geyser Basin.

41. Midway Geyser Basin
A lone bison walking across a steamy pool. Midway Geyser Basin.

42. Biscuit Basin Trail, Upper Geyser Basin
The Morning Glory Pool on the Biscuit Basin Trail. The colour of the pool is due to bacteria. Several
entryways have been clogged due to objects being thrown in by tourists.

43. The formation of geothermal features.

44. Biscuit Basin Trail, Upper Geyser Basin
The Sapphire Pool is a steamy hot pool, quiet and placid. Biscuit Basin Trail.

45. Old Faithful
Old Faithful Geyser. It is named because of the highly predictable eruptions every 44 to 125 minutes,
reaching a height between 106 and 185 feet.

46. Old Faithful underground chamber
Above diagram shows why the Old Faithful geyser erupts regularly. Source National Geographic.

47. Old Faithful
Old Faithful Geyser. Eruptions can shoot 3700 to 8400 US gallons of boiling water for one & a half to 5
minutes.

48. Wildfire
In the 1988 wildfires burned more than on million acres of the Greater Yellowstone Ecosystem. Wildfires
occur regularly.

49. Wildfire
Soon after a fire. One year after 2 years after 25 years after

50. Music – Aranjuez Mon Amour by Tio Rodriguez composed by Joaquin Rodrigo
The
End

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