fort casey state historic park with batteries and towers, coupeville, whidbey island, washington

tower building sea landmark coast vacation town admirality head fort casey coupeville whidbey island washington state park entrance puget sound pacific northwest usa north america american beautiful landing national historical reserve ebeys county inlet historic autumn fall green window windows facade west western juan fuca strait trees forest blue sky architecture united states concrete fortifications batteries command towers grass lawn open field coastal battery protection guarding