Guided geology field trips offered this summer by NCI

MIgmatite at the Diablo Overlook. We’ll learn about these complex rocks on the North Cascades trip.

Dave Tucker will lead three field courses on behalf of North Cascades Institute in late summer of 2013. My friend David Williams will lead an urban geology tour in Seattle.

August 9-11: GEOLOGY OF THE NORTH CASCADES: CROSS SECTION THROUGH THE CRUST. This course will be based out of the NCI Environmental Learning Center at Diablo Lake. Over three days we will examine different sites along Highway 20 from Sedro Woolley to Washington Pass. Meals and lodging at the Learning Center.

September 28 and repeated on September 29: MOUNT BAKER: THE STORY OF

The Ptarmigan Ridge hike will visit volcanics of the Kulshan caldera, Mount Baker, and rocks from other volcanoes intermediate in age to the two.

VOLCANOES I AND II. I will lead a one day hike along Ptarmigan Ridge on the east flank of Mount Baker.We will look at volcanic deposits from the Kulshan caldera, pre-Mount Baker andesite volcanoes, and young Baker itself. These two hikes will fill up VERY QUICKLY so register right now if you are interested.

The Morton gneiss is used in Seattle buildings. At 3.2 billion years old it is probably the oldest building stone in the world.

Also on September 28, David Williams leads ‘Street Smart Naturalist’. This will be a walking tour of downtown geology. highly regarded and a must for Seattle residents interested in geology.

Registration and descriptions for all these programs begins at the NCI geology webpage.

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