1. Yellowstone Geysers and supervolcano

2. What is a geyser? A geyser is a type of hot spring that erupts periodically, ejecting a column of hot water and steam into the air. The name geyser comes from Geysir, the name of an erupting spring at Haukadalur, Iceland;hot springwater steamGeysirHaukadalur Iceland Geyser is geothermal spring, caused by volcanic activity.

3. Where do geysers occur? Geysers occur only in volcanic regions. There are several such regions on Earth, The five largest geyser fields in the world are: Yellowstone National Park, Wyoming, United StatesYellowstone National Park WyomingUnited States Dolina Geiserov, Kamchatka, RussiaDolina GeiserovKamchatka Russia El Tatio, Chile, South AmericaEl TatioChileSouth America Taupo Volcanic Zone,New ZealandTaupo Volcanic ZoneNew Zealand Iceland, EuropeIcelandEurope Other geysers can be found in: California, Peru, Bolivia, Mexico, Dominica, Azores, Kenya and Japan.CaliforniaPeruBoliviaMexico DominicaAzoresKenya Japan

4. There are 1000 geysers in the world, more than 200 of them are in Yellowstone. The most famous one is OLD FAITHFUL. The interval of eruption normally ranges between 68 and 93 minutes. It can erupt about 15 times a day.

5. Old Faithful

6. You can see it on the Old Faithful webcam !Old Faithful webcam

7. Yellowstone geysers

9. Iceland

10. Chile, El Tatio geysers

11. Where is Yellowstone ? Yellowstone has so many different things to see and do it is amazing. The park is huge, it is bigger than the states of Delaware and Rhode Island combined. The park covers 2,219,823 acres / 898,714 hectares, 3,472 square miles / 8,987 square km, miles north to south - 63 / 102 km, miles east to west - 54 / 87 km.

12. Under the water stream in Earth crust there is a heat source caused by volcano. In Yellowstone that is the largest supervolcano on Earth with caldera that has capacity of 2500 cubic km.

13. What is a super volcano?

14. What is a caldera? The largest and most explosive volcanic eruptions eject tens to hundreds of cubic kilometers of magma onto the Earth's surface. When such a large volume of magma is removed from beneath a volcano, the ground collapses into the emptied space, to form a huge depression called a caldera. Some calderas are more than 25 kilometers in diameter and several kilometers deep.

16. Crater lake caldera

17. The Yellowstone Caldera, sometimes known as the Yellowstone supervolcano, measures 55 kilometers by 72 kilometers.The caldera was discovered based on geological field work conducted by Bob Christiansen of the United States Geological Survey in the 1960s and 1970s. Caldera supervolcanogeological United States Geological Survey

19. Other supervolcanoes on Earth

20. Calderas are among the most spectacular and active volcanic features on Earth. Earthquakes, ground cracks, uplift or subsidence of the ground, and thermal activity such as hot springs, geysers, and boiling mud pots are common at many calderas. Yellowstone hot lakes on photos.thermal activity

21. What else can you see in Yellowstone? Mammoth plate hot springs

22. More geysers of course….

23. Thermal flows

24. Waterfalls

25. Yellowstone and Snake river

26. Beautiful landscape

27. Amazing wildlife Bald eagle, ground hog and bison

28. Bighorn sheep and Wapiti

29. Coyote, pronghorn and grizzly bear

32. The end