1 The site of Hutou Fortress is located in the northwest mountainous area of Hutou Town, Hulin City, Heilongjiang Province, on the west bank of Wusuli River, the border river between China and Russia, and 1.2km north of Hutou Town. It is an independent hill with an altitude of100.7m, and its geographical coordinates are133 43' in east longitude and 45 57' in north latitude (East Lake Mountain).

2. During World War II, the Japanese Kwantung Army secretly built a border military fortress, occupied China for a long time and attacked the Soviet Union. The fortress lasted for six years, costing hundreds of millions of dollars and requisitioning more than 20 thousand workers. Completed in the spring of 1939, it is known as "maginot line of the East". Hutou Fort is one of the last battlefield sites in the Second World War, and it is a historical witness to the final fate of the Japanese invaders.

3. The fortress was listed as a cultural relic protection unit in Heilongjiang Province on 1990. In 2003, the site was listed as a provincial patriotic education base by the provincial government, and in 2006 it was listed as the sixth batch of national key cultural relics protection units.