Fort Stevens is a historic military installation located at the mouth of the Columbia River in Oregon. Built during the Civil War, it was designed to protect the river and the city of Astoria from naval attacks. The fort played a significant role in coastal defense and was active until the end of World War II. Today, Fort Stevens is part of Fort Stevens State Park, where visitors can explore the remnants of the fort, including its earthworks, gun batteries, and a historic shipwreck. The site offers recreational activities such as hiking, camping, and wildlife viewing, making it a popular destination for outdoor enthusiasts.