what city is mt st helens in?
Skamania County
contradiction
 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 96 miles ( 154 km ) south of Seattle , Washington , and 50 miles ( 80 km ) 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 . 

contradiction
 Mount St. Helens , which exhibited phreatic activity just prior to its catastrophic 1980 eruption ( which was itself Plinian ) . 

neutral
 The 1980 eruption of Mount St. Helens in Washington , which ripped apart the volcano 's summit , was a Plinian eruption of Volcanic Explosivity Index ( VEI ) 5 . 

contradiction
 Mount St. Helens is 34 miles ( 55 km ) west of Mount Adams , in the western part of the Cascade Range . These " sister and brother " volcanic mountains are approximately 50 miles ( 80 km ) from Mount Rainier , the highest of Cascade volcanoes . Mount Hood , the nearest major volcanic peak in Oregon , is 60 miles ( 100 km ) southeast of Mount St. Helens . 

neutral
 Prior to the 1980 eruption , Mount St. Helens was the fifth @-@ highest peak in Washington . It stood out prominently from surrounding hills because of the symmetry and extensive snow and ice cover of the pre @-@ 1980 summit cone , earning it the nickname " Fuji @-@ san of America " . The peak rose more than 5 @,@ 000 feet ( 1 @,@ 500 m ) above its base , where the lower flanks merge with adjacent ridges . The mountain is 6 miles ( 9 @.@ 7 km ) across at its base , which is at an elevation of 4 @,@ 400 feet ( 1 @,@ 300 m ) on the northeastern side and 4 @,@ 000 feet ( 1 @,@ 200 m ) elsewhere . At the pre @-@ eruption tree line , the width of the cone was 4 miles ( 6 @.@ 4 km ) . 
