Mount St. Helens - Wikipedia, the free encyclopedia
Popularity Report
![]() |
|||
![]() |
|||
![]() |
|||
![]() |
|||
![]() |
|||
![]() |
Bookmark History
Saved by 2 people (-1 private), first by anonymouse user on 2006-03-02
- Tgstrine on 2009-11-23 - Tags no_tag
- Whiteknoll on 2008-01-14 - Tags fifthgrade , science , volcano
Public Sticky notes
Highlighted by tgstrine
Highlighted by tgstrine
| map | #26 USGS Mount St. Helens |
| Type | #21 Active stratovolcano |
| Volcanic arc / belt | Cascade Volcanic Arc |
| Age of rock | < #20 40,000 yrs |
| Last eruption | #19 2004–2008 (ongoing) |
| First ascent | #18 1853 by Thomas J. Dryer |
| Easiest route | #17 Hike via south slope of volcano (closest area near eruption site) |
#1 Mount St. Helens is an active stratovolcano located in Skamania County , Washington , in the Pacific Northwest region of the United States . #2 It is 96 miles (154 km) south of Seattle and 53 miles (85 km) northeast of Portland, Oregon . #12 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. #3 The mountain 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 . #10 This volcano is well known for its ash explosions and pyroclastic flows .
#4 Mount St. Helens is most famous for its
Highlighted by whiteknoll
Highlighted by whiteknoll
Highlighted by tgstrine
Highlighted by tgstrine
Highlighted by tgstrine
Highlighted by tgstrine
Highlighted by tgstrine
Highlighted by tgstrine
Highlighted by tgstrine
Highlighted by tgstrine
Highlighted by whiteknoll


Public Comment