Sucia Island Marine State Park

Among the northernmost of the San Juan Islands, this horseshoe-shaped island is accessible only by watercraft. Known for its emerald waters and forested trails, its magnificent sunsets and sandstone formations, Sucia Island is prized by locals for its off-season beauty and solitude. It has also become known for its abundance of fossils, including the femur bone of a therapod informally named the “Suciasuarus”—which remains the only dinosaur fossil ever found in Washington State.

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AddressSucia Island
Zip code98245