Fort Columbia State Park [WA]
The Fort Columbia State Park preserves one of the few remaining intact coastal defense sites in the United States. The Fort was declared surplus at the end of WWII, and was immediately converted to a Washington state park. The park is also home to an interpretive center and a variety of nature related activities.
The park offers interpretive events, exhibits, hiking trails, and guided tours. The website offers a history of the park, a photo gallery, and visitor information.