Siskiyou Field Institute
Siskiyou Field Institute
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PO Box 207
1241 Illinois River Rd
Selma, OR 97538
Phone: (541) 597-8530
Fax: (541) 597-8533
Contact: Siskiyou Field Institute

Hours: 9:00 a.m. - 4:00 p.m., Monday-Friday
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Geology of Big Red Mountain

Instructor: Jad D’Allura, Ph.D.
Date: Saturday, July 15, 2017
Location: Mt. Ashland
Tuition: $60


Drink in spectacular views as we hike and peel back a complex geologic history obscured by the veil of time. Red Mountain, and many other adjacent rocks, were born millions of years ago in an oceanic and mantle environment, then folded, faulted, and further abused into discrete blocks. The largest block is the nutrient-poor serpentine of Red Mountain, which contains mysterious black rocks called amphibolites. We’ll learn the history of the “young” 160 million year-old granite of the Mount Ashland pluton. Our moderate hike will start at Wrangle Gap and we'll work our way south along the Pacific Crest Trail, plus car travel to and from.


Register for this course.




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2017 PCL Geology BRM JD.pdf

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