By Ryan Ware On October 15, 2015 · Add Comment · In Archeology & Collections, News. Fort Vancouver entered the National Park Service in 1948 as Fort Vancouver National Monument. The fort acted to preserve the original Hudson’s Bay stockade of Fort Vancouver.hroughout the years the park was expanded. In 1961, the boundaries were enlarged and the park was renamed Fort Vancouver National Historic Site. In 2011 the army discontinued its operations at the East and South Vancouver Barracks, and in 2012 that area was transferred to the National Park Service as well.