Fort Mason, also known as San Francisco Port of Embarkation, US Army, in San Francisco, is a former United States Army post located in the northern Marina District, alongside San Francisco Bay. Fort Mason served as an Army post for more than 100 years, initially as a coastal defence site and subsequently as a military port facility. During World War II, it handled most of the cargo for the Pacific campaign.
Today it is part of the Golden Gate National Recreation Area and the site of several cultural facilities. It is a National Historic Landmark District with over 49 buildings of historic significance, spread over 1,200 acres (490ha).
The rolling lawn above Fort Mason Center, known as the Great Meadow, is a relatively little-used park, but it's great for taking a siesta, tossing a frisbee, or just strolling through to take in the spectacular views from the cliffs.