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Mount Saint Helens
English Wikipedia - The Free Encyclopedia
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Mount St. Helens
Mount St. Helens
or
Louwala-Clough
(known as
Lawetlat'la
to the indigenous
Cowlitz people
, and
Loowit
to the
Klickitat
) is an active
stratovolcano
located in
Skamania County, Washington
, in the
Pacific Northwest
region of the United States. It is south of
Seattle
,
Washington
, and northeast of
Portland
, Oregon. 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
.
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