Thursday, June 21, 2007

Mt St Helen and the aftermath of the volcano

The double waterfall is in amongst the ash and regrowth of the mountains.

The ash debris and remaining logs are a result of the volcano. They are left as part of the National Park. This is a first hand way for the geologists to study what happens after a volcano and how the land recovers.

more debris on the side of the road and a sampling of the whole area.

This valley was formed from the debris from the volcano. This was the dirt and rocks that blew out of the side and from the top of the mountain. The ranger said some of the rocks were about 12 inches across. They now understand that the valleys formed by volcano's are really an avalanche of the mountain that blows.

this was the edge of the blast zone.


This bridge was built after the volcano took out the other one. It was at the edge of the blast zone 17 miles away.


The bridge.

This is the sign in front of the ranger station warning of the possibility of ash in the air at any time. The volcano is always moving and blowing off ash.

The forest is in the continual process of rebuilding itself as evidenced by the flowering tree near the visitor center.


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