Images

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.

Adult lionfish, approximately 250 mm total length.

The USGS lidar unit scanning a road embankment failure on Route 252, west of Horinouchi-Cho, in Niigata-ken, Japan. The system can be easily transported by vehicle or backpack to study sites, and travels as checked baggage.

A group of juvenile lionfish, approximately 120 mm total length.

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 steam and ash eruption.

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

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

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

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

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

Plume/crater image of Mount St. Helens October 1, 2004 at 12:08:38 PDT.

Plume/crater image of Mount St. Helens October 1, 2004 at 12:13 PDT.

Plume/crater image of Mount St. Helens October 1, 2004 at 12:03:55 PDT.

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

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

Close-in view of south side of Mount St. Helens lava dome, as seen from the southeast, showing the dome and part of the glacier forming at the base of the dome. September 2005

Upper slopes of Glacier Peak, Washington.

Western side of Mount St. Helens crater, and dome, showing the glacier forming at the base of the dome.

Mount St. Helens crater and dome as seen from SugarBowl, on the NE flank of the volcano. September 2005

Conowingo Dam on the Susquehanna River in Maryland.