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Know Your Faults: Olema Valley Geology Hike Along the San Andreas

Know Your Faults: Olema Valley Geology Hike Along the San Andreas

Fri, March 1
Hike the Olema Valley within the the San Andreas Fault and learn about this active boundary between the North American and Pacific Plates.

Hike the Randall Spur and Olema Valley trails within the San Andreas Fault and learn about this active boundary between the North American and Pacific Plates. View fault-related landscapes and discuss plate tectonics, the 1906 San Francisco earthquake, and natural hazards in the Bay Area.

John Karachewski has conducted geology and environmental projects from Colorado to Alaska to Midway Island and throughout California. He has led over 50 geology hikes for PRNSA, and with Doris Sloan collaborated on a popular book “Geology of the San Francisco Bay Region.” John enjoys biking, hiking, and photographing landscapes.

P hoto Credit: Robert Campbell


-We will be meeting at the Randall Trailhead along Highway 1, South of Olema

– Please arrive 10-15 minutes early to check in

– Refunds available for all classes 7 days in advance of the start date, after 7 days and before 2 days, participants can credit their class for a future date. All requests before 48 hours in advance will be declined. For COVID cancellation policy, see below.

– Please follow the parking instructions for the facility used that day

– Please provide an email you check regularly for updates and reminders about your class

– Registration is required online prior to the event in order to maintain class sizes

– Sales end 48 hours before the start date.

– Waitlists are available when the class sells out

What to Bring

Trekking poles if desired (optional)

Day Pack


Warm Variable Weather Clothing

Hiking Shoes

Water Bottle

Notebook and Pen/Field Journal

Eventbrite Confirmation Email

Binoculars (Optional)

Camera (Optional)

About the PRNSA Field Institute

The PRNSA Field Institute offers hands-on environmental education classes throughout the year that foster enjoyment of Point Reyes National Seashore. Our classes are led by expert instructors, who take you out of your everyday life and into the natural world. We host a variety of classes about the arts and sciences and have something for everyone. You can reach the Field Institute at (415) 663-1200 x304 or by email at fieldinstitute@ptreyes.org.

Interested in becoming a member of PRNSA? Click Here!

Interested in becoming a PRNSA Field Institute volunteer facilitator, or are you an outdoor educator or artist who would like to teach a PRNSA Field Institute class? Send an Email!

For any questions, please email us at fieldinstitute@ptreyes.org.

COVID-19 Field Institute Guidelines

Please respect the following COVID-19 procedures:

· Perform a health self-check before coming to class using the CDC Symptoms of Coronavirus as a guide

· Do not attend class if you are experiencing COVID symptoms, know that you have had a close exposure, or are suffering from any flu-like or respiratory illness

· Contact the Field Institute if you will not be able to attend due to COVID. You may be eligible to receive a full or partial refund

· Participants exhibiting signs of respiratory illness may be asked to leave class

· Masks are optional at your discretion

· Please bring your own food and water

All guidelines are subject to change pursuant to State or County Health order updates.

Thank you for your cooperation in following these guidelines to help keep everyone safe.