San Juan Island Historical Park staff lead Geological Hikes at 9 a.m. Saturdays through September 1 and at 3:30 p.m. Sundays through September 2 at both English and American Camps.
These easy to moderately difficult walks up Young Hill near English Camp, and Mt. Finlayson near American Camp, focus on the geology of the San Juan Islands over the last 230 million years of earth's history. From tectonic movement, to accretion, to uplift, volcanism, glaciation, erosion, and more, these islands present an incredibly complex and interesting geology for visitors of all ages. Visitors will meet at the English Camp and American Camp Visitor Centers for the hikes.