Branches of Xiaoxing 'anling Mountain

Pingdingshan is located in the southeast of Taoshan Town, tieli city (under Taoshan Forestry Bureau), between Xinxing, Fendou and Nanhe Forest Farm and the junction of Shuangfeng and Tonghe Forestry Bureaus. It is a famous mountain adjacent to Taoshan, Shuangfeng and Tonghe, and the first mountain in Taoshan. It is 40km away from Taoshan, with a length of10km, a distance of12.5km from Xinxing Forest Farm, and a distance of 9km from Fendou Forest Farm, with an altitude of1429m. Because the mountains are high, plants are influenced by infrared rays, and most of them grow low and crawl. The trees on the top of the mountain are slash pine and grass. Because the top of the mountain is straight, it is named Pingdingshan.

Lazi Mountain, a small city wall, is high and steep, with many stone peaks, with the highest elevation of 1223 meters. It is like a city wall, located 30 kilometers southwest of Xiaobai Forest Farm under the jurisdiction of tieli city Langxiang Forestry Bureau, hence its name.

Daqingshan, located in the application area of Zhengchahe Forest Farm, is opposite to Xiaoqingqiang Qiaozi Mountain, with an altitude of10/4m.

Wuhua Dingzi Mountain, elevation1227m. East-west trend, located in the south of Liudaogou Forest Farm in Langxiang Forest Region, tieli city. Because of the high altitude and lush peaks such as the first frost, the top of this mountain is Wuhua Mountain, hence the name.

Shantou Mountain is located in the application area of Sandaogou Forest Farm in Langxiang Forest Region of tieli city, with an altitude of1.088m.. The top of the mountain is round, shaped like a big steamed bread, hence the name.

Erduo Rock Mountain is located in the application area of Zhelinhe Forest Farm in Langxiang Forest Region, with the main peak at an altitude of1166m. Seen from a distance, its outline is similar to the shape of human ear, and it extends to the main peak with 1 main ditch, so it is called Erduo Rock Mountain. The terrain of this mountain is complex, and it is difficult to collect and transport wood.

Karen Mountain, located in the north of Aihui Town, Heihe City, Heilongjiang Province, belongs to the residual vein of Xiaoxing 'an Mountains, with an area of 5 square kilometers and an altitude of 154 meters. There are many birch, poplar, oak and artificial pine forests in the mountains.

Daheishan (in Heihe City) is located on the ridge of Xiaoxing 'anling in the south of Handaqi Township, Heihe City, Heilongjiang Province, with an altitude of 867.4 meters. The top of the mountain is round and flat, with a flat area of 15 square kilometers. The edge is surrounded by Larix gmelinii, with bare rocks and few trees in the middle, and the surface is covered by Vaccinium uliginosum, Eucommia ulmoides, Pinus elliottii and Pyrola. Mud moss grows on the rock surface, and the vegetation belongs to the Daxinganling plant type, and the soil is barren.

Song Nan, also known as "Pine Mountain". Located in the north of Xiangyang Village in the west of Sunwu County, Heilongjiang Province, at the junction with Heihe City. It belongs to Xiaoxing 'anling Mountains, with an altitude of 753 meters, which is the highest peak in Sunwu County. The mountain is gentle and east-west, with an area of about 16 square kilometers. This mountain is dominated by granite The vertical distribution of vegetation is divided into three zones: the foothills are surrounded by larch, the middle is covered by mixed forest of pine and cypress, and lower plants appear above 500 meters above sea level.

Bailu Mountain is located in the south of Kelin Township, Xunke County, Heilongjiang Province, and belongs to Xiaoxing 'anling Mountains. According to legend, the Oroqen hunter was named after seeing a "white deer" in the mountains. The mountain is southeast and northwest, with a length of 16 km and a width of 9 km. The main peak is 795 meters above sea level, which is the highest peak in Xunke County. Bailu Mountain is the east source of Kuer River. There are many forests such as Korean pine, birch and poplar in the mountains.

Shouhushan, located at the junction of southern Jiayin County and Yichun City in Heilongjiang Province, belongs to Xiaoxing 'an Mountains. It turned out to be an unknown mountain. In the winter of 1960, the logging operation area of Tangwanghe Forestry Bureau extended here. Because tigers often appear, workers are afraid to work in the mountains. The Forestry Bureau invited five hunters to wait on the mountain for three days and nights, and captured 1 Siberian tiger. The other two escaped, hence the name "Shouhushan". The main peak is 787.9 meters above sea level, which is the highest point in Jiayin County. The east is the source of Jielie River, and the west is the source of Wo River and Erqing River. The vegetation is the original Korean pine forest. Rare birds and wild animals inhabit the forest.

Guanyin Mountain, located in Jiayin County in the north of Heilongjiang Province, is adjacent to Heilongjiang in the east and belongs to the remnant vein of Xiaoxing 'an Mountains. The mountain is magnificent, with an altitude of 3 19.6 meters and an area of 28 square kilometers. The origin of the name Guanyin Mountain once said that there was Kannonji on the mountain, hence the name "Guanyin Mountain"; From a distance, it looks like a Guanyin statue facing south, hence the name "Guanyin Mountain", also known as "Foshan". The mountains are getting bigger and bigger from south to north. If they are amazing, they will flock to the bank of Heilongjiang. The peaks along the river stand tall, about 300 meters high. Looking up from the railing by boat, the peak looks like a giant chair, and Guanyin seems to be sitting on it. At the steep slope at the foot of the mountain, there are three holes arranged in a "needle" shape. Above them, there are rugged rocks and vines climb around them. In the meantime, the largest one is called Huxian Cave, which is several meters deep. Vegetation is broad-leaved secondary forest, mostly poplar, birch and oak. Wild animals include moose, roe deer and wild boar.

Baoxing Mountain, located on the bank of Heilongjiang River 12km east of Jiayin County in northern Heilongjiang Province, belongs to the residual vein of Xiaoxing 'an Mountains, surrounded by rivers on three sides, with the main peak at an altitude of 504.2m and an area of 45km2. On the north side of the river, the mountains are high and steep, and on the other side is the Russian town of Baskovo. A mountain in the east is an isosceles triangle, shaped like a pyramid. Climbing high in midsummer can see the ever-changing sea of clouds and spectacular sunrise. The vegetation is a mixed forest of conifers and broadleaved trees, which is rich in wildlife resources.

Mingshan, located in the west of Mingshan Town, Luobei County, northeastern Heilongjiang Province 1 km, connects Heilongjiang in the north, with an altitude of134m and an area of 0.4 square kilometers. It's very obvious because of the isolated mountain. In the Qing Dynasty, it was called "Tuoluo Mountain", and the name of Luobei County originated from Tuoluo Mountain. Famous mountains have dense forests and beautiful scenery. There is a famous mountain island in Heilongjiang at the foot of the mountain, with a length of 2 100 meters, an average width of 250 meters and an area of 0.25 square kilometers. There are lush trees on the island, as well as weasels, raccoons, foxes and other wild animals.

Wang Yunfeng is located in Luobei County, northeast of Heilongjiang Province, and belongs to the eastern edge of Xiaoxing 'an Mountains. 20 kilometers east of Heilongjiang, the top of the mountain overlooks Heilongjiang. It was once named "Wangjiang Peak". Because of the peculiar features of the mountain, it was renamed "Wang Yunfeng" because it was shrouded in mist. It is 777 meters above sea level and covers an area of about 2 square kilometers.

Beishan, also known as "Phoenix Mountain". Located 2 kilometers north of Fengxiang Town, Luobei County, northeast Heilongjiang Province, it belongs to the remnant vein of Xiaoxing 'an Mountains, with an altitude of 190 meters. The mountain is gentle, with an area of 0.7 square kilometers. Legend has it that there is a phoenix on this mountain, with a long sound, flying to Wutong River. Fengxiang town in front of the mountain got its name. This mountain is adjacent to Haruo Highway in the south and mountainous area in the north, which is the barrier of Luobei County.

Aobaoshan Mountain is located in Erkeqian Township, nehe city, northwest Heilongjiang Province, on the left bank of Nenjiang River, belonging to the remnant vein of Xiaoxing 'an Mountains. The area is about 1 km2 and the elevation is 216.4m.. The mountains are gentle and the scenery is beautiful.

Chao yang shan (in wudalianchi city) is located in the middle of wudalianchi city, Heilongjiang Province, and belongs to Xiaoxing 'an Mountains. The mountain trend is east-west, with an average elevation of about 500 meters and an area of about 10 square kilometers. The peaks and hills are dangerous and the trees in the ravine are mainly oak, birch and poplar. Wild animals include black bear, wild boar, lynx, flying dragon and so on. Rich in bracken.

Mount Erke, located 2 kilometers north of Kedong County, Heilongjiang Province, is a flaming mountain. It is made up of two opposing peaks, hence its name. The mountain is composed of basalt, with an altitude of 430.7 meters and a southeast-northwest trend, with an area of 1.2 square kilometers. The surface layer is sedimentary aeolian sand and the lower layer is volcanic ash. The south slope is artificial pine forest and the north slope is natural forest. There used to be many temples on this mountain. Jincheng Guzhen Village, 5 kilometers northwest of Erke Mountain, is the ruins of the ancient city of Puyu Road in the Jin Dynasty.

Laobaishan, located in the east of Yichun City, Heilongjiang Province, in the middle of the south slope of Xiaoxing 'anling, and in the west of Heishan, Qinghai Province, is named after the long snow peak, with an altitude of1068m. There is Xiaobaishan in the north, with an altitude of1022.438+0m. This mountain consists of granite and basalt. Among them are rolling mountains and dense forests. The main tree species are Korean pine, spruce, fir, pineapple, Fraxinus mandshurica, oak and linden. Precious Chinese herbal medicines include codonopsis pilosula, acanthopanax senticosus, Schisandra chinensis, auricularia auricula, bracken, monkey leg and other specialties. There are dozens of wild animals in the forest, such as deer, roe deer, black bear, wild boar, grouse and birds. Dafeng River originates from the southern foot of Laobai Mountain.

Motianling, the name of the mountain. Located at the junction of northwest Tangyuan County and Yichun City in Heilongjiang Province, it is a branch of Xiaoxing 'an Mountains. Named after a steep mountain peak. Fiona Fang is a mountainous area of 4 square kilometers. The main peak stands among the mountains, and the top of the mountain is flat, with an altitude of 846.3 meters. This mountain is mainly composed of granite and basalt. Most of the mountainous areas are coniferous and broad-leaved mixed forests. It is the highest peak among the mountains in the northwest of Tangyuan County.

Located at the junction of Tangyuan County, Yichun City and hegang in the northeast of Heilongjiang Province, Qingheishan is a branch of the southern section of Xiaoxing 'an Mountains, stretching from north to south for more than 100 kilometers. It is mountainous and winding, with an average elevation of 750 meters. The main peaks are Xiaobaishan, Jindingshan and Motianling from north to south. The elevation of Xiaobaishan, the main peak, is12.8+0m. The mountain is mainly composed of granite and basalt, covered by dense forests, and the mountain color is indigo, hence the name "Qingheishan". There are many poplar, birch, spruce, Korean pine and other trees in the mountains, as well as deer, bears, roe deer, pheasants and other wild animals.

Jiangjunshi Mountain, located in the south of Hegang in the northeast of Heilongjiang Province, belongs to the residual vein of Xiaoxing 'an Mountains. The mountain is majestic, and there is a huge stone protruding from the top of the mountain, which looks like a mighty general, hence the name.

Yimashan, commonly known as "Ma Ye". It is located at the northwest 15km of Bayan County, Heilongjiang Province, and is adjacent to Harbin (Erbin) Luobei Highway in the north. A Mashan, an isolated mountain, rises from the ground, with steep north side and gentle south side. It is northwest-southeast, with an altitude of 333.3 meters and an area of about 8.5 square kilometers. Most of the vegetation is broad-leaved forest. There is Shaoling River in the east of the mountain and Piao River in the west, which meet in the south of the mountain. There is a 60-meter-high TV relay tower on the mountain.

Camel lazi, formerly known as Bayan Susu Mountain. Located 20 kilometers northeast of Bayan County, Heilongjiang Province, at the junction of Bayan County and Mulan County. It belongs to the remnant vein of Xiaoxing 'anling, with an altitude of 540 meters. The mountain is steep, the peaks face each other, and the mountain is concave and looks like a camel, hence the name. It is the birthplace of Dahuangni River and Wuyue River, and the vegetation is broad-leaved forest. Climb to the top of the mountain, overlooking the county seat and the Songhua River.

Mengshan, also known as "Mongolian Mountain" and "Lushan Mountain in Mongolia". Located 35 kilometers west of Mulan County, Heilongjiang Province, it belongs to the remnant vein of Xiaoxing 'an Mountains. The mountain is steep, roughly north-south, with an altitude of 668.5 meters and an area of 75 square kilometers. A peak in the southwest corner protrudes, and the stone wall stands, especially in the southwest corner; There is a road to the west, which is still acceptable. The center is flat, about 0.5 square kilometers, which is the site of the ancient city of Jin Dynasty, so the locals call it "Chengzishan". It is the birthplace of Dashitou River and Baiyang River. Broad-leaved trees such as poplar, birch and oak grow on the mountain.

Jiaojie Mountain, located at the junction of the northern part of Tonghe County in central Heilongjiang Province and the southeastern part of tieli city, belongs to Xiaoxing 'anling Mountains, with an altitude of1227m. North-south trend, high in the north, and gradually extended to Tonghe County, covering an area of about 100 square kilometers. The vegetation is mixed coniferous and broad-leaved forest, and the wild animals are black bears, roe deer and wolves. It is the birthplace of the Northwest River and the Little Northeast Chahe River.

Siping Mountain (the junction of Suiling County and Qing 'an County), located at the junction of Sihaidian Town and Qing 'an County in Suiling County, central Heilongjiang Province, belongs to the southern slope of Xiaoxing 'anling, with an area of about 5.5 square kilometers and an altitude of 666 meters. Siping Mountain is the highest point in Suiling County and the birthplace of Numin River. The mountain is steep and there are rocks under the vegetation. The vegetation is coniferous and broad-leaved mixed forest, and wild animals include black bear, wild boar, deer and roe deer.

Taoshan, located in tieli city, central Heilongjiang Province, belongs to Xiaoxing 'anling. The mountain is complex, basically northwest-southeast, with an altitude of 442 meters. The average temperature in the coldest month in 65438+ 10 is about -23℃, and the average temperature in the hottest month in July is about 2 1℃. The annual average frost-free period is 128 days, and the normal frosting date is about September 15 every year. The annual average daily temperature above 0℃ lasts 198 days. The average annual precipitation is 638 mm, but the annual precipitation changes greatly. Due to the suitable climate, abundant rainfall, good natural ecology, dense forests and numerous animals.

Dagou Mountain (called Siping Mountain in tieli city Langxiang Forest Region) is located in the south of Shengli Management Office in Langxiang Forest Region, tieli city, central Heilongjiang Province, bordering Dailing in Yichun City, and on the south slope of Xiaoxing 'anling. Area 14 km2, main peak elevation1203.4m (elevation1178m). The forest is dense and green from a distance, hence the name. The vegetation is broad-leaved forest, and the main trees are birch and poplar. Because the top of the mountain is flat and wide, and there is an ice lake that does not melt all year round. Seen from a distance, the mountain peaks are regularly stepped, hence the name Siping Mountain. The top of the mountain is equipped with aviation signs and a TV relay tower more than 30 meters high set up by Dailing Forestry Experimental Bureau. There are 19 wind turbines on the mountain.

The top of the ink cloud is the name of the mountain. Located at the junction of northeast Mulan County and Tonghe County in central Heilongjiang Province, it belongs to Xiaoxing 'an Mountains, which runs southwest-northeast, southwest extends to Mulan County, and northeast extends to Tonghe County. The main peak is 96 1.8m above sea level ... Because the mountain is high, the top of the mountain is often shrouded in clouds, hence the name. It is the highest peak in Mulan County and one of the birthplaces of Mulan River. The mountains are lush with trees, such as Korean pine, poplar, birch and oak.

At the end of Yuan Dynasty, Ding Zi was the name of the mountain. Located in the north of Fengshan Town, Tonghe County, central Heilongjiang Province, it belongs to Xiaoxing 'anling and is the main peak of Daqing Mountain. It is north-south, with an area of more than 50 square kilometers and an altitude of 1 138 meters. The mountain is steep and magnificent, so it is named because it is rich in Yuanmo. It is the birthplace of Liudaohezi. The vegetation is dominated by coniferous and broad-leaved mixed forests such as Korean pine, birch and poplar. Wild animals include bears, wolves, roe deer, pheasants and birds.

Dongdingzi Mountain, located in the north of Sanzhan Township, Tonghe County, central Heilongjiang Province, is an independent mountain range with a north-south trend, with an area of about 50 square kilometers and an altitude of 63 1.7 meters. The gentle mountains are the birthplace of the Wulahun River. Vegetation is broad-leaved forest such as oak, birch and poplar, and wild animals are deer, roe deer, bears, pheasants and birds. There are Datong River and Datong River Reservoir on the west side. 1988 turned into an international hunting ground.

Huazi Mountain is located in the northern part of Chalin Township, Tonghe County, central Heilongjiang Province. It is an independent mountain range with an area of about 85 square kilometers and an altitude of 680.7 meters, belonging to the residual vein of Xiaoxing 'an Mountains. It is named after the shape of a mountain peak. The mountain is gentle, and the vegetation is mostly secondary broad-leaved forest, with some primary forests. The birthplace of Linzi River. 1988, 8.5 times the weight of ginseng was collected on this mountain.

Round hat top, mountain name. Located in the northwest of yilan county, in the middle of Heilongjiang Province, it belongs to the remnant vein of Xiaoxing 'an Mountains, with a mountain range of 806.7 meters above sea level. The upper part of the mountain is steep, and the lower part is slow, shaped like a round hat, hence the name. Most of the vegetation is birch, oak, poplar and ash.

Chimney Hill, commonly known as "Tianzhu". Located in the vast plain of Yinglan Township, yilan county, central Heilongjiang Province, it belongs to the southern foot of Xiaoxing 'anling Mountain. It is a lonely peak, which rises from the ground and looks like a chimney, hence its name. The mountain is east-west, north-south length 1 km, east-west width 1.25 km, elevation 172 m. This is a bare mountain. Whenever it rains continuously or the snow melts, the accumulated water on the top of the mountain will flow down from the crevices of the stone to form a circular waterfall. In spring, flocks of migratory birds come here to nest and breed.

Sishi Mountain, also known as "Yuefeng Mountain". Located at the junction of yilan county and tieli city in central Heilongjiang Province, it belongs to Xiaoxing 'an Mountains. The main peak is named after four huge stones. The mountain is east-west, and the main peak is 979.5 meters above sea level. The south slope is steep and the north slope is gentle, covering an area of 6 square kilometers. Vegetation is primitive larch, Korean pine, birch and oak. The four stones are divided into "East Four Stones" and "West Four Stones". The main peak is relatively open, and there are three caves more than 20 meters deep on the mountain.

Wudalianchi Volcano Group, located in wudalianchi city, northern Heilongjiang Province, belongs to the middle part of the west side of Xiaoxing 'an Mountains. Because the volcano erupted in1719-1721year (58-60 years of Qingkang), it blocked the Baihe River and formed five connected Yansai lakes and 14 volcanic cones around them, so it was called Wudalianchi Volcano Group.

The eruption age of Wudalianchi Volcano Group is from early Pleistocene to late Pleistocene. It consists of 12 old volcanoes and two new volcanoes. That is, Laoheishan, Yamakaji, Yaoquan Mountain, Wohu Mountain, Bijia Mountain, Nangelaqiu Mountain, Beigelaqiu Mountain, Xijiaodebu Mountain, Dongjiaodebu Mountain, Donglongmen Mountain, Xilongmen Mountain, Xiaogushan, Molabu Mountain, Weishan, etc. 14 independent volcanic cones are distributed on the lava platform of 700 square kilometers at an altitude of 3,500 meters. Most of them have craters, and the depth of craters ranges from tens of meters to hundreds of meters. A few have multiple craters and overflow ports, and some craters form volcanic lakes. The slope of volcanic cone is generally 10-20 degrees, and a few can reach 25-30 degrees. The slope of a crater is generally steeper than that of a volcanic cone. Volcanic cones are mainly composed of pyroclastic materials and basalt. Laoheishan and Yamakaji were formed by the latest volcanic eruption, which occurred at1719-1721year ago, only 270 years ago.

Laoheishan (in wudalianchi city), located 10 km north of Wudalianchi urban area, belongs to Wudalianchi volcanic group, which erupted recently in Yamakaji in the north, earlier in Nangelaqiu Mountain and Yaoquan Mountain in the west and southwest, and Wudalianchi in the east. The top of the mountain is black, so it is called "Old Black Mountain". Erupting in1719-1721(58-60 years of Qing Emperor Kangxi), it is a rare dormant volcano that erupted recently in China. The altitude is 5 15.5m, and the relative altitude is 164m. Foundation diameter1600m; The crater is funnel-shaped, with a diameter of 350m and a depth of 136m. There are two gaps on the north side of the crater, which are the channels for volcanic lava to overflow. The whole mountain consists of black pumice, volcanic ash and lava. The surface is covered with dark brown rocks, with steep southwest slope and gentle north slope, and trees such as birch, poplar and oak are growing. The mountain is surrounded by relatively flat lava platforms. A large area of lava "stone sea" exposed from the surface on the north side is magnificent with overlapping waves and peaks. Looking at a piece of Wang Yang from a distance, it's spectacular to see the stone surge in the near future. Lava flows southward in strips, stretching for17km. It is known as the "Shilong" and is also a wonder of Old Montenegro.

Yamakaji is located at12km north of Wudalianchi urban area, belonging to Wudalianchi volcanic group, and 2 km south of it is the newly erupted Laoheishan. 1719-1721year (58-60 years of Kangxi in the Qing Dynasty) erupted at the same time as Laoheishan, which is a dormant volcano that erupted recently in China. The eruption scale is smaller than that of Old Montenegro. Due to the second explosive eruption, the volcanic cone was destroyed and shaped like a broken basin, so the locals called it "two halves of the mountain". The entire volcanic cone consists of black, brown and purple pumice and basalt. The altitude is 392.6 meters, and the relative height is 73 meters. The base is 800 meters in diameter, the inner diameter of the crater is 450 meters and the depth is 63 meters. The southern slope of the volcanic cone is steep and the northern slope is gentle. The crater wall is uneven, and there is a gap in the northwest, which is the channel for lava to overflow. The periphery of the volcanic cone is relatively flat, and a large area of volcanic lava is exposed on the surface. Various volcanic geological and geomorphological phenomena are well preserved, and the rocky sea formed by lava is choppy, changeable and spectacular.

Yaoquan Mountain, located on the west side of Wudalianchi urban area, belongs to Wudalianchi volcano group. According to legend, a Daur hunter once shot a deer at the foot of the mountain. The injured deer involved a mineral spring, so the mineral spring was regarded as a medicine spring, hence the name Yaoquan Mountain. As an old volcano, it is the smallest volcanic belt in Wudalianchi Volcano Group, with an altitude of 355.8 meters and a base diameter of 550 meters. The crater is circular, with a diameter of 230 meters and a depth of 32 meters. The crater is round chair-shaped, with a flat mouth, a gap in the southwest and a passage into the crater. The southeast slope of the cone is steep and the north slope is slow, with dense oak and birch forests. There used to be Zhong Ling Temple in the crater, but now the bell pavilion is built on the top of the mountain. Standing on the eastern edge of the highest point of Yaoquan Mountain, you can overlook the whole city of Wudalianchi.

Kolo Volcano Group, located in Nenjiang County, northwest of Heilongjiang Province, belongs to the western section of Xiaoxing 'anling, 60 kilometers southeast of Wudalianchi Volcano Group. The Kolo Volcano Group has erupted many times since the Late Tertiary, forming 23 volcanic cones and about 350 square kilometers of basalt platforms. Volcanic cones are divided into six rows, which are distributed in the northeast-southwest direction of the ancient fault basin, with a length of more than 40 kilometers and a width of 18 kilometers. Among these volcanic groups, there are seven well-preserved volcanic cones with craters, namely, South Kolo Mountain, Gushan Mountain, Dayi Mountain, Xiao Yishan Mountain, Montenegro, Kazan Mountain and 48 1 Highland. The crater is 5-50 meters deep and its inner diameter is 10- 165 meters. Montenegro is the highest volcanic group, with an altitude of 542 meters. The highest relative height is Mount Keluo, with a ratio of 107.7 meters and an altitude of 447.7 meters ... There are volcanic ash, pumice, volcanic bombs and lava platforms near the volcanic cone. The lava platform near the south of Kolo Mountain is exposed, with few vegetation and well-developed micro-landforms.

Gacong Volcano Group, located in the north of Erzhan Village, Erzhan Township, Heihe City, northwest Heilongjiang Province, mainly distributed in Menlugou area and erupted in the late Pleistocene. It belongs to Xiaoxing 'anling. * * * There are four volcanic cones: Gacong Mountain, Daheishan Mountain and Baishan Mountain. There are three bright cones, which are arranged in the northeast direction. They are qualitative volcanoes and lava mounds, which are composed of basalt. Among them, Gacong volcano has a crater; Baishan, 704.3 meters above sea level, is the highest peak of Gacong Volcano Group. There are sporadic Holocene volcanic eruptions in its east. At most, the volcanic cone is covered with barren and drought-tolerant weeds, and a large area of larch grows at the foot of the mountain.

Baishan, located in the north of Sanzhan Village, Erzhan Township, Heihe City, northwest Heilongjiang Province 14 km, belongs to Xiaoxing 'an Mountains, with an altitude of 704.3 meters. The mountain peaks are protruding, the north slope is steep, and the fractured rocks are exposed; The south slope is slightly gentle, which is the peak of Gacong Volcano Group. It is named because volcanic ash is exposed on the surface and looks white from a distance. There are no trees growing on the main peak, and most of them are covered with barren and drought-tolerant weeds. At the foot of the northern slope, there are patches of Larix gmelinii. Rocks are volcanic zeolite and volcanic rocks, which can provide raw materials for light building materials for the construction industry.

Sijitun Volcano Group is located at the junction of Sunwu County and Heihe City in the north of Heilongjiang Province, bordering Heilongjiang in the east and belonging to Xiaoxing 'an Mountains. Because it is located near Sijitun, it is named after Tun. It is an extinct volcano that erupted at the end of Pliocene in Tertiary period, and it is composed of four volcanic cones: one mountain, two mountains, three mountains and spire mountain. Erjiashan is the boundary mountain between Sunwu County and Heihe City. The volcanic cone is not high, and it is all overflow. The elevations of the first mountain, the second mountain, the third mountain and the steeple mountain are 255m, 266m, 25 1 m and 313m respectively. The mountain is mostly composed of light red and dark gray volcanic basalt, covered with 30- 100 cm thick volcanic ash and soil layer, with oak, birch and other trees growing.