东宁要塞群遗址,位于黑龙江省东南边陲口岸——东宁县,面对俄国边境,南起大肚川镇,北至绥阳,东起三岔口镇,西至老黑山镇。正面宽1lO公里,深入东宁境内50公里,是侵华日军自1934—1945年苦心修筑的庞大的军事工程。现已探明的地下要塞有胜哄山要塞、朝日门要塞、勋山要塞、麻山要塞、三角山要塞和409高地要塞等10多处。其面积之大,功能之全,建筑之固,号称“东方的马其诺防线”。这些隐蔽 Dongning Fortress site, located in southeastern border Heilongjiang Province Port - Dongning County, the face of the Russian border, south of Dayuchuan town, north of Suiyang, east of Sanchakou town, west of Old Montenegro town. The front is 110 km wide and 50 km deep inside the territory of Dongning. It is a huge military project invaded by the Japanese army since 1934-1945. Has been proven underground fortress wins the Big Peak Fortress, Asahi Gate Fortress, Hsun Fortress, Ma hill fortress, triangle hill fort and 409 highland fortress more than 10. Its large area, full function, solid construction, known as the “Oriental Maginot Line.” These hidden