The Greater Higgnan Mountains is located in the northeast of China Mongolian Autonomous Region, the northeast of Heilongjiang Autonomous Region and the north of Heilongjiang Province, with a total length of1220km and a width of 200-300km. Primitive dense forest is one of the important forestry bases in China. The main trees are Larix gmelinii, Pinus sylvestris var. mongolica, Picea koraiensis, Betula platyphylla, Quercus mongolica and Populus davidiana. Daxinganling is the northernmost and largest modern state-owned forest region in China, with a total area of 84,600 square kilometers, equivalent to 1 Austria or 137 Singapore. The forest stock is 5.0 1 100 million cubic meters, accounting for 7.8% of the national total stock, with a total population of 5 1 10,000, and the border line is 79 1.5 kilometers long. It has jurisdiction over Tahe, Mohe and Huma counties, Jiagedaqi, Songling, Xinlin, Huzhong, Four Districts and Derbul. The majestic Xing 'an Mountains are rich in green forests. There are 7.3 million hectares of forest land in Daxing 'anling, with a forest coverage rate of 74.1%.In the vast green ocean, there are red deer, reindeer, moose, sika deer, brown bear, sable, flying dragon, pheasant, pheasant, swan, roe and deer in cold temperate zone. There are more than 20 rivers, such as Ganhe River, bucur River, Naduli River, Huma River and Emur River, flowing freely among the rivers in Qian Shan, and finally flowing into Heilongjiang, the mother river of the border people. There are many rare cold-water fish here, such as sturgeon, octopus, fine scales, Jiang Xue fish and so on. It's no exaggeration to describe the wild animal resources here by "beating roe deer with a stick to scoop fish, and pheasant flying into the rice cooker". Editor's note: Daxing 'anling region is located in the northernmost border of the motherland, bordering Xiaoxing 'anling in the east, Inner Mongolia Autonomous Region in the west, the vast Songnen Plain in the south, and Russia in the north by the center line of Heilongjiang main channel. East longitude1210/2' to127 00'; North latitude 5010' to 53 33'. It covers an area of 84,600 square kilometers. Population The total population of ethnic groups is 540,000, and there are 24 ethnic groups, of which the rural population is only over 50,000. Topography, climate and topography are high in the west and low in the east, which is located at the first step and the second step and its junction. The north-south direction of the mountain ridge in Daxing 'anling, Zhongshan, is the first step and the west is the second step. 300-700 meters above sea level. The general terrain of the whole region is northeast-southwest, belonging to shallow hills. North, west and middle are high. The average altitude is 573 meters; The highest altitude is 1528 meters, which is the main peak of Ilhuri Mountain-Dabai Mountain in Huzhong District; The lowest altitude is180m, which is Yanjiang Village, Sanka Township, Huma County. It is cold in winter and warm in summer, with a large temperature difference between day and night. The annual average temperature is -2.8℃, the lowest temperature is -52.3℃, the frost-free period is 90- 1 10 days, and the annual average precipitation is 746 mm, which belongs to the continental monsoon climate of cold temperate zone. Resident zip code area administrative office is located in Jiagedaqi, Hulunbeier City, Inner Mongolia. Postal code: 165000. Administrative division code: 232700. Area code: 0457. Pinyin: Daxing'anling Diqu. Administrative Division In 2005, it governed three counties. Daxinganling area covers an area of 46,755 square kilometers and has a population of 520,000 (2003). Huma county covers an area of14,285 square kilometers with a population of 340,000. Postal code 165 100. County People's Government in Huma Town. Tahe County covers an area of 14 103 km2 and a population of100000. Postal code 165200. County People's Government in Tahe Town. Mohe county covers an area of 18367 square kilometers with a population of 80,000. Postal code 165300. County People's Government in Xilinji Town. * Data of the above area and population According to the Administrative Divisions of the People's Republic of China (2005), the population of Huma County includes the population of four districts including Jiagedaqi. * * The following area, population (200 1 end of the year) and zoning are based on the website of Daxing 'anling region * The administrative office of Daxing 'anling has jurisdiction over 3 counties, 4 districts, 23 towns, 12 townships, 6 sub-district offices, 60 communities and 80 villagers' committees. Huma County has a population of 52,000. Area 1.43 million square kilometers. It has jurisdiction over 2 towns, 6 townships, 8 neighborhood committees and 64 village committees: Huma Town, Hanjiayuan Town, Xinghua Township, Beijiang Township, Baiyinna Township, Oupu Township, Jinshan Township and Sanka Township. Tahe county population100000 people. Area 1.4 million square kilometers. It has jurisdiction over 3 towns, 3 townships, 29 neighborhood committees and 1 1 village committees: Tahe Town, Pangu Town, Walagan Town, Yixiken Township, Kaikukang Township and Shibazhan Township. Mohe county has a population of 85,000. Area 1.84 million square kilometers. It has jurisdiction over 4 towns, 1 township, 4 neighborhood committees and 7 village committees: Xilinji Town, Xing 'an Town, Tuqiang Town, Jintao Town and Mohe Township. The population of Jiagedaqi District is155,000. The area is 0.140,000 square kilometers. It governs 6 streets, 2 townships, 60 neighborhood committees and 8 village committees: Weidong Street, Hongqi Street, Shuguang Street, Changhong Street, Dongshan Street, Guangming Street, Jiabei Township and Baihua Township. Songling District has a population of 35,000. Area 1.68 million square kilometers. It has jurisdiction over 3 towns and 8 neighborhood committees, namely Xiaoyangqi Town, Guyuan Town and Jinsong Town. Xinlin has a population of 49,000. It covers an area of 8,700 square kilometers. It has jurisdiction over 7 towns and 17 neighborhood committees: Xinlin Town, Cuigang Town, Tayuan Town, Bizhou Town, Hongtu Town, Dawusu Town and Targen Town. Huzhong District has a population of 52,000. It covers an area of 9,400 square kilometers. It has jurisdiction over 4 towns, 1 1 neighborhood committee: Huzhong Town, Bishui Town, Huyuan Town and Hongwei Town.