In 1829, Hudson's Bay Company officials moved Fort Vancouver to the site where a reconstruction now stands. After the region became part of the United States, the company transferred its headquarters to Fort Victoria in what is now British Columbia Canada in 1849. In 1860, the company completely abandoned Fort Vancouver and moved north.
After fire destroyed Fort Vancouver in 1866, the Fort Vancouver Historical Society of Clark County was created to rebuild it. The federal government made Fort Vancouver a National Monument on June 19, 1948 and a National Historic Site on June 30, 1961. The society led the effort that resulted in a law authorizing the National Park Service to restore Fort Vancouver in the 1970s.