Images

Ash plume and crater rim at Mount St. Helens, October 2004, aerial view from the south.

Crater rim and ash from October 2004 Mount St. Helens plume.

FLIR (forward looking infrared monitoring instrument) mounted on nose of helicopter with Mount St. Helens in the background.

Mount St. Helens with a swarm of news trucks during the October, 2004 increase in activity.

Mount St. Helens' crater, October 2004, aerial view from the east.

Dome and glacier within Mount St. Helens's crater, October 2004, aerial view from the northwest.

Sunset on the crater rim and flanks of Mount St. Helens, with Mount Adams in the distance.

Ash, erupted from the early phases of the 2004 Mount St. Helens activity, is remobilized from the surface of an ash-covered from a moving vehicle.

Crater and 1980-1986 dome of Mount St. Helens with the glacier on the right. View toward the south.

Dome inside the crater of Mount St. Helens, with the 2004 "welt" in a darker grey shade at the south edge (top in this photo) of the lighter colored 1980-86 dome. Aerial view toward the south.

Mount St. Helens dome and jumbled glacier from the south. October 2005

Crater and 1980-86 lava dome of Mount St. Helens, ash covered areas are grey, and new vent is the depression in lower center of photograph. Spirit Lake is in the background. View toward the north.

Beginning of plume above Mount St. Helens dome, as seen from Johnston Ridge Observatory.

Mount St. Helens crater and dome as seen from the northeast. To the right of the dome, the snout (nose or leading edge) of Crater Glacier is visible. October 2005

Mount St. Helens dome as seen from above the southwestern crater rim. Ash from the plume of 10-01-04 is visible on the glacier at the base of the dome. The vent from that event is visible at the base of the dome on the right. October 2005

Mount St. Helens dome and jumbled glacier from the south. October 2005

South side of Mount St. Helens lava dome, glacier (cracked snowy surface in foreground at base of dome) is being uplifted due to increase in activity. October 2, 2004.

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 PDT.

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

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