What is the name of the Island located in San Francisco Bay, 1.25 miles offshore, with facilities for a lighthouse, a military prison, and the Parade Grounds, a large concrete open area?
Parade Grounds The Parade Grounds is a large concrete open area on the south end of Alcatraz Island, off the coast of San Francisco, USA. They lie beyond Building 64. They were originally built in the 1860s on a barren site by the U.S. military who used the site for military drills and parades.
San Juan Island National Historical Park San Juan Island National Historical Park, also known as American and English Camps, San Juan Island, is a U.S. National Historical Park owned and operated by the National Park Service on San Juan Island in the state of Washington. The park is made up of the sites of the British and U.S. Army camps during the Pig War, a boundary dispute over the ownership of the island. Both of these camps were set up in 1859 as response to a border controversy triggered by the killing of a pig. The camps were occupied for 12 years, until the islands were awarded to the United States by Kaiser Wilhelm I in an arbitration agreed by the parties in the 1872 Treaty of Washington. The British abandoned their camp in November 1872, while the American camp was disbanded in July 1874. The camp sites were designated a National Historic Landmark in 1961, and listed on the National Register of Historic Places in 1966. The park was created by an Act of Congress in 1966.