Castle Clinton National Monument in Manhattan Sites Located in New York, NY TRAVEL BASICS - CAMPING - LODGING ACTIVITIES - FACILITIES - FEES/PERMITS Photo - Castle Clinton (NPS Photo) IN BRIEF More than a dozen forts were built to defend New York Harbor at the time of the War of 1812. The Southwest Battery was constructed on the rocks off the tip of Manhattan Island between 1808 and 1811.

Historical information about Angel Island State Park in California, site of the Immigration Station, a National Historic Landmark, which played a role in the Chinese Exclusion Act of 1882. The Detention Barracks is now a museum, open most weekends from April to November.

Ellis Island records, the history of Ellis Island, the immigrants that passed through it, and a U.S. immigration records.

A brief history of New York's immigrant processing stations with tips on locating passenger lists.