Seismic spider (painted green). This unit was designed with a seperate weighted accelerometer (seismic unit)to replace the unit put out on November 20, 2004.
Images
Images related to Cascades Volcano Observatory.
![Seismic spider, a rapid-response instrument slung from a helicopter...](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/vhp_img958.jpg?itok=b0tA-Wtp)
Seismic spider (painted green). This unit was designed with a seperate weighted accelerometer (seismic unit)to replace the unit put out on November 20, 2004.
![Mount St. Helens from the northwest. Mount Hood (left) and Mount Je...](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/vhp_img874.jpg?itok=gddGiZKw)
Mount St. Helens from the northwest. Mount Hood (left) and Mount Jefferson (middle) are on the skyline. December 2005
Mount St. Helens from the northwest. Mount Hood (left) and Mount Jefferson (middle) are on the skyline. December 2005
Mount St. Helens' crater and dome from the northwest.
Mount St. Helens' crater and dome from the northwest.
Mount St. Helens' dome from the east-northeast.
Mount St. Helens' dome from the east-northeast.
Mount St. Helens' crater and dome from the south.
Mount St. Helens' crater and dome from the south.
![Dome within Mount St. Helens' crater compressing glacier to the rig...](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/vhp_img879.jpg?itok=UJA5rASO)
Dome within Mount St. Helens' crater compressing glacier to the right, viewed from west. December 16, 2004.
Dome within Mount St. Helens' crater compressing glacier to the right, viewed from west. December 16, 2004.
![Dome within Mount St. Helens' crater viewed from the Johnston Ridge...](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/vhp_img880.jpg?itok=izknZacf)
Dome within Mount St. Helens' crater viewed from the Johnston Ridge Observatory (JRO).
Dome within Mount St. Helens' crater viewed from the Johnston Ridge Observatory (JRO).
Mount St. Helens aerial view from the north-northeast.
Mount St. Helens aerial view from the north-northeast.
![Mount St. Helens and Mount Rainier, northern aerial view](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Rainier%20and%20St%20Helens.jpg?itok=cvBMXogz)
![Mount St. Helens and Mount Rainier, aerial view toward the north....](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/vhp_img881.jpg?itok=cA0Jtm7v)
Mount St. Helens and Mount Rainier, aerial view toward the north.
Mount St. Helens and Mount Rainier, aerial view toward the north.
Mount St. Helens' crater and dome from the east.
Mount St. Helens' crater and dome from the east.
![Aerial view, Mount St. Helens crater and dome, with new growth, fro...](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/vhp_img795.jpg?itok=88ydlgLY)
Aerial view, Mount St. Helens crater and dome, with new growth, from the northwest.
Aerial view, Mount St. Helens crater and dome, with new growth, from the northwest.
Mount St. Helens' new dome, from the northwest. November 2004.
Mount St. Helens' new dome, from the northwest. November 2004.
![Growing lava dome within Mount St. Helens' crater viewed from the ...](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/vhp_img797.jpg?itok=jMe8k4sl)
Growing lava dome within Mount St. Helens' crater viewed from the west. November 2005
Growing lava dome within Mount St. Helens' crater viewed from the west. November 2005
![Mount St. Helens new lava dome as seen from the north-northeast. ...](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/vhp_img798.jpg?itok=LEp3eAtn)
Mount St. Helens new lava dome as seen from the north-northeast.
Mount St. Helens new lava dome as seen from the north-northeast.
Mount St. Helens dome from the south. November 2005
Mount St. Helens dome from the south. November 2005
![Glacier uplift against the south crater wall caused by compression o...](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/vhp_img800.jpg?itok=Mur_f3L5)
Glacier uplift against the south crater wall caused by compression of growing dome in Mount St. Helens crater. November 29, 2005
Glacier uplift against the south crater wall caused by compression of growing dome in Mount St. Helens crater. November 29, 2005
![USGS scientists on Mount St. Helens' crater rim looking down on dom...](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/vhp_img802.jpg?itok=Is_5Xm87)
USGS scientists on Mount St. Helens' crater rim looking down on dome. The new part of the dome is to the left, the 1980-86 dome is below the scientists on the right.
USGS scientists on Mount St. Helens' crater rim looking down on dome. The new part of the dome is to the left, the 1980-86 dome is below the scientists on the right.
![USGS scientists on Mount St. Helens' crater rim setting up new came...](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/vhp_img803.jpg?itok=yAAKizX9)
USGS scientists on Mount St. Helens' crater rim setting up new camera station ("Brutus") to look at the new dome. The camera station is to be manned manually, weather and eruption permitting.
USGS scientists on Mount St. Helens' crater rim setting up new camera station ("Brutus") to look at the new dome. The camera station is to be manned manually, weather and eruption permitting.
![Evening view of Mount St. Helens from the Johnston Ridge Observator...](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/vhp_img804.jpg?itok=u_au506M)
Evening view of Mount St. Helens from the Johnston Ridge Observatory (JRO).
Evening view of Mount St. Helens from the Johnston Ridge Observatory (JRO).
![Mount St. Helens' dome from the Sugar Bowl remote camera. Image has...](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/vhp_img805.jpg?itok=594C3Zlb)
Mount St. Helens' dome from the Sugar Bowl remote camera. Image has been converted to black/white for clarity.
Mount St. Helens' dome from the Sugar Bowl remote camera. Image has been converted to black/white for clarity.