Toutle and Cowlitz Rivers Merge

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=_TB-Mb4NZMc

The Toutle River carries huge loads of volcanic sediment from Mount St. Helens down to the Cowlitz river. At their confluence near Castle Rock, WA, you can c...

Toutle, Cowlitz, river, confluence, merge, Mount St. Helens, Castle Rock, volcano, sediment, transport, geology
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