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Year Published: 1901

Geology and water resources of a portion of Yakima County, Washington

Smith, George Otis
Geology and water resources of a portion of Yakima County, Washington; 1901; WSP; 55; Smith, George Otis

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Year Published: 1897

A reconnaissance in southeastern Washington

Russell, Israel Cook
A reconnaissance in southeastern Washington; 1897; WSP; 4; Russell, Israel Cook

Filter Total Items: 857
Plume within Mount St. Helens' crater, October 1, 2004 at 12:16 PDT...
October 1, 2004

Plume within Mount St. Helens' crater, Oct. 1, 2004 at 12:16 PDT.

Plume within Mount St. Helens' crater, October 1, 2004 at 12:16 PDT.

Plume from Johnston Ridge Observatory, Mount St. Helens. October 1,...
October 1, 2004

Plume from Johnston Ridge Observatory, Mount St. Helens. Oct 1, 2005

Plume from Johnston Ridge Observatory, Mount St. Helens. October 1, 2004.

Mount St. Helens' crater, dome, and glacier uplift from the southea...
October 1, 2004

Mount St. Helens' crater, dome, and glacier uplift

Mount St. Helens' crater, dome, and glacier uplift from the southeast, after steam and ash eruption.

Mount St. Helens' dome and glacier uplift from the east, after stea...
October 1, 2004

Mount St. Helens' dome and glacier uplift from east

Mount St. Helens' dome and glacier uplift from the east, after steam and ash eruption.

Mount St. Helens' dome and glacier uplift from the east, after stea...
October 1, 2004

Mount St. Helens' dome and glacier uplift from east

Mount St. Helens' dome and glacier uplift from the east, after steam and ash eruption.

Vent blasted through the Mount St. Helens' crater glacier....
October 1, 2004

Vent blasted through the Mount St. Helens' crater glacier.

Vent blasted through the Mount St. Helens' crater glacier.

1980-1986 Mount St. Helens' dome and glacier uplift (cracked gray s...
October 1, 2004

1980-1986 Mount St. Helens' dome and glacier uplift (cracked gray s...

1980-1986 Mount St. Helens' dome and glacier uplift (cracked gray surface in snow to left of main dome) from the east, before steam and ash eruption.

Plume within Mount St. Helens' crater, October 1, 2004 at 12:03:23 ...
October 1, 2004

Plume within Mount St. Helens' crater, Oct. 1, 2004 at 12:03:23 PDT

Plume within Mount St. Helens' crater, October 1, 2004 at 12:03:23 PDT.

Plume within Mount St. Helens' crater, October 1, 2004 at 12:03:32 ...
October 1, 2004

Plume within Mount St. Helens' crater, Oct. 1, 2005

Plume within Mount St. Helens' crater, October 1, 2004 at 12:03:32 PDT.

South side of Mount St. Helens lava dome, as seen from the east, sh...
September 30, 2004

South side of Mount St. Helens lava dome, as seen from the east, sh...

South side of Mount St. Helens lava dome, as seen from the east, showing the dome and part of the glacier forming at the base of the dome. September 30, 2005

September 30, 2004

October 1, 2004 Explosion at Mount St. Helens

On October 1, 2004, an explosion in the crater of Mount St. Helens sent ash and water vapor several thousand feet into the air. It was the dramatic beginning of an eruption that continued for the next 3+ years. The explosion fractured Crater Glacier and hurled rocks for at least one-half mile across the western half of the glacier and the 1980-1986 lava dome. USGS

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