Ancón is a corregimiento in Panamá District, Panamá Province, Panama with a population of 29,761 as of 2010. Its population as of 1990 was 11,518; its population as of 2000 was 11,169. It is sometimes considered a suburb or small town within Panama City, northeast of the limits of the town of Balboa. Ancon Hill is also the name of a large hill that overlooks Panama City and once served as a form of protection from pirates and sea invasion. The township was originally located around this hill, and was created to house employees of the Panama Canal during its construction. As part of the construction effort, the historic Gorgas Army Hospital was founded and built on the hillside. The first ship to officially transit the canal, SS Ancon, was named after the district. The community continued to serve as housing for employees of the Panama Canal Company until 1980, when parts of it began to be turned over to the Panamanian government under the 1977 Torrijos-Carter Treaties. Modern-day Ancón is a corregimiento of Panama City, serving mainly as a residential area. The Gorgas Army Hospital building is now the Panamanian Oncology Hospital, primarily used for cancer research.