To provide you with additional information about how we collect and use your personal data, we’ve recently updated our Privacy Policy and Terms of Service. Please review these pages now, as they apply to your continued use of our website.
Angel Island State Park, San Francisco, CA. USA April 12, 2014: Angel Island in San Francisco Bay was the site of Point Knox, a military outpost with three gun batteries built to defend the bay in the early 20th Century. Battery Ledyard, with a gun illustrated on the plaque, was removed due to obsolescence in 1915.