06-22-2019 Summer Field Trip to Hurricane Ridge

Field Trip June 22, 2019:  Geology of Hurricane Ridge and the Olympic Mountains; Jim Aldrich—Leader

On this one-day field trip we will explore the geology of Hurricane Ridge, the Crescent basalt (which holds up the ridge); additional aspects of glaciation, volcanism, metamorphism, etc., will be discussed in addition to the tectonism associated with the Olympics. Our leader will be Jim Aldrich, a structural geologist formerly with Los Alamos National Lab in NM, who has been working in the park for several years, pursuing his passion to understand more about his fascinating area inboard of the Cascadia subduction zone.

This trip is road-based with a bit of walking on the road, but nothing strenuous. We will meet at the National Park Visitors Center (3002 Mt Angeles Rd, Port Angeles) at 9 am, when it opens.  We’ll form carpools to minimize the number of cars at roadside stops.  From there, we’ll travel up to Hurricane Ridge, visiting a number of roadcuts to see the Crescent basalt.  Bring your lunch or purchase one at the Hurricane Ridge Visitors Center.  From there, we’ll drive and hike to see geologic features along Hurricane Ridge and overview the evolving landscape of this region. You’ll see how tectonic forces of uplift driven by the subduction zone are balanced by the erosive forces of precipitation (Mt. Olympus gets 260″ annually).

A fee of $10 per person will cover printed quidebook material. (Amount reduced at request of Jim Aldrich; he says this is adequate to break even.) There will be a limit of 25 persons owing to limited parking along the road to Hurricane Ridge.  First come, first served as they say. Deadline is June 15th, but it will fill much sooner.  To register for the trip click here.