Mt yoran , Oregon cascades.

Mt Yoran from the slopes of south Mt Yoran. July 1st 2006.


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tuntun - Oct 16, 2006 8:27 am - Voted 9/10


Do you know that what kind of Rock type there?


cascadetraveler - Oct 16, 2006 12:09 pm - Hasn't voted

Re: Know?

The mountain is made up of Andesite/Basalt extrusions. The mountain began It's eruption cycle over 400,000 years ago. It is the remains of the original shield type volcano. Thank you for asking,Thank you for the vote....Larry.

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