The Dongning Fortress Museum covers an area of more than 15,000 square meters. It consists of more than 10,000 square meters of marble square, 4,000 square meters of green space and 1,100 square meters of Library buildings. Located in Xunshan Mountain, 2 kilometers north of Nanshan Village, Sanchakou Town, Dongning County, Heilongjiang Province. In May 1999, the Preparatory Office was established and "the exhibition hall of Dongning Fortress" was built in a 300 square metre warehouse of Xunshan Underground Fortress. It was officially opened to the public on June 18, 1999. On October 18, 2005 "Dongning Fortress History Exhibition Hall" was opened beside the site of Xunshan Fortress and officially named the Dongning Fortress Museum in 2008. It belongs to the Culture and Sports Bureau of Dongning County.