Take a walk of ‘tectonic evolution’ on Sucia Island

Sucia Island - Contributed photo
Sucia Island
— image credit: Contributed photo

Did you know that Sucia Island was once the home of an ammonite Gaudryceras?

Do you know what an ammonite Gaudryceras is?

Well, you can find all this out and more at the San Juan Nature Institute’s field trip to Sucia Island on Sept. 11 on a guided walk led by Geologist Michael Yeaman.

Participants meet at Enzo’s Coffee Bar on Orcas Island at 9:30 a.m. for a brief overview.

This short course will cover the tectonic evolution of the Pacific Northwest focusing on several geologic outcrops on Sucia Island including colorful rock formations and then returning to the dock for lunch at 1 p.m.

The hike will explore some local geologic features at the lunch site, then take a short cruise around the South end of the island, before returning to Orcas at about 4 p.m.

San Juan Nature Institute is a non-profit organization dedicated to increasing public understanding of the unique natural heritage of the archipelago and encourages active learning and conservation.

This class covers nearly two mile of level, but pebbly ground.

Participants should wear clothing suitable for travel and good hiking shoes with ankle support. Please bring a sack lunch, water and sun protection.

Cost per participant is $75 including the boat fare.

Registration is required and can be done at, emailing or by calling 378-3646.

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