Ever wanted to touch the earth’s mantle, usually found deep within the ground. Discover 200-million-year-old metamorphic rocks that make Fidalgo Island’s shoreline rugged and unique.
We’ll explore the “bare” spots of ancient serpentinite mantle rock atop coastal shores, examine glacial grooves and other scars left behind by the Great Ice Age. Learn the story of the mile-thick glaciers that reshaped this landscape only 15,000 years ago. It’s a million-year journey, all within an afternoon in Washington Park.
Terry Slotemaker, once a teacher of kids, now a retired hiker of mountains, shorelines. Wondered about rocks underfoot, wrote the book The Geology of Fidalgo and Guemes Islands.
