Portal:Mountains

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Mountains
Silvretta panorama from the Ochsenkopf
Welcome to the mountains portal. Here you will find an overview of all articles in the subject area of mountains and mountain ranges in the world, about Alpinism, the history, mountain sports and many related topics. The work of the portal is organised by WikiProject Mountains. New editors, who are interested in these topics are always welcome; we are happy to offer help and advice in creating articles.
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MSH82 st helens plume from harrys ridge 05-19-82.jpg
Mount St. Helens is an active stratovolcano located in Skamania County, Washington, in the Pacific Northwest region of the United States. Mount St. Helens takes its English name from the British diplomat Lord St Helens, a friend of explorer George Vancouver who made a survey of the area in the late 18th century. The volcano is located in the Cascade Range and is part of the Cascade Volcanic Arc, a segment of the Pacific Ring of Fire that includes over 160 active volcanoes. This volcano is well known for its ash explosions and pyroclastic flows. As with most other volcanoes in the Cascade Range, Mount St. Helens is a large eruptive cone consisting of lava rock interlayered with ash, pumice, and other deposits. The mountain includes layers of basalt and andesite through which several domes of dacite lava have erupted.

Mount St. Helens is most famous for its catastrophic 1980 eruption, which was the deadliest and most economically destructive volcanic event in the history of the United States. Fifty-seven people were killed; 250 homes, 47 bridges, 15 miles (24 km) of railways, and 185 miles (298 km) of highway were destroyed. A massive debris avalanche triggered by an earthquake measuring 5.1 on the Richter scale, caused an eruption, reducing the elevation of the mountain's summit from 9,677 ft (2,950 m) to 8,365 ft (2,550 m) and replacing it with a 1-mile (1.6 km)-wide horseshoe-shaped crater. The earthquake was caused by a sudden surge of magma from the Earth's mantle. The debris avalanche was up to 0.7 cubic miles (2.9 km3) in volume.

Current news

April 2015 A catastrophic earthquake on April 25 centered west of Kathmandu triggered numerous avalanches on Mount Everest, resulting in the deaths of at least 22 people.

October 2014 A severe snowstorm on October 14 dumped 1.8 metres (5.9 ft) of snow within 12 hours in the areas surrounding Annapurna and Dhaulagiri resulting in the deaths of at least 43 people, including 21 trekkers.

April 2014 Sixteen Nepalese climbers were killed by an avalanche in the Khumbu Icefall on Mount Everest. The climbers were preparing the route through the dangerous icefall for the Spring climbing season. Three others were injured and seven remain missing.(Source)


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NASA Landsat-7 imagery of Himalayas
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Shivling
Eruption of Pinatubo 1991
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Grosser Aletschgletscher
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Climbing in Greece
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