Birch Bay State Park is a 194-acre camping park with 8,255 feet of saltwater shoreline on Birch Bay and 14,923 feet of freshwater shoreline on Terrell Creek. The park is rich in shellfish resources and offers panoramic views of the Cascade Mountains and Canadian Gulf Islands. Birch Bay was named by botanist Archibald Menzies for its abundance of black birch trees. Menzies was on the 1792 Vancouver expedition. Archeological evidence indicates that the bay was inhabited by Semiahmoo, Lummi and Nooksack tribes since prehistoric times.