Chagres (Spanish pronunciation: [ˈtʃaɣɾes]), once the chief Atlantic port on the isthmus of Panama, is now an abandoned village at the historical site of Fort San Lorenzo (Spanish: Fuerte de San Lorenzo). The fort's ruins and the village site are located about 8 miles (13 km) west of Colón, on a promontory overlooking the mouth of the Chagres River.