Information about Mihe River.

Mihe River originates from Tianqi Bay at the western foot of Linqu Mountain, meanders westward along the hillside, turns northeast near Linqu Jiusan, passes through Yeyuan Reservoir, passes through Yidu, divides into three shares in the southern half of Guangling Township, Shouguang, and flows into Bohai Sea. Among them, the northeast one, with a wide river channel, is the main channel of Mihe River, which flows into the sea in Lingdong, into Dana in Shouguang in Northern Song Dynasty, and into Yangzi Port in Hanting District of Weifang City. The other two streams enter the sea from Mihe River, both of which enter the sea from Nanbanjiehe Village to the north. The river is 206 kilometers long and the basin area is 3847.5 square kilometers. The average river gradient is 3.2/ 1000, and the river network density is 0.3km/km2. The upper reaches of Mihe River are 56 kilometers from Heyuan to Yeyuan. Rivers run in hilly areas, and the average channel ratio drops to 10.4/ 1000. The height from Yeyuan to Shouguang Yuesi is the middle reaches, and the river is 54 kilometers long. The river passes through Linqu Basin and piedmont plain, with an average river gradient of 1.5/ 1000. Below the height of Yuesi is the downstream, with a river length of 96 kilometers and an average river ratio of 0.4/ 1000.

The main tributaries of Mihe River are Wujingshi River, Shihe River, Nanyang River and Danhe River. Wujing Shihe River originates from Tumen Town Car Factory in Yiyuan County and flows to the northeast. In the north of Shuigou Village, it flows into Linqu County, passes through Songshan Reservoir, then flows northeast, flows east of Beidian in Linqu, and flows into Mihe River from the left bank. The length of the river is 35.5km, the drainage area is 264.2km2, and the average river gradient is 13.6/ 1000. Shihe River originates from Hulin Valley, Sunwang Township, Yidu, flows northward to Kongwang Village, turns eastward, passes through Heihushan Reservoir, flows eastward to the northeast of Dongting Lake in Linqu, and enters Mihe River from the left bank. The total length of the river is 34 kilometers, the drainage area is 3 19.8 square kilometers, and the average river gradient is 12.3/ 1000. Nanyang River originates from Maanshan, southwest of Yidu, flows northeast, turns northeast and flows southeast in Yidu, and flows into Mihe River from the left bank east of Yuyang River Village. The river is 36 kilometers long, with a drainage area of 159.8 square kilometers and an average river gradient of 8/ 1000. The Danhe River originates from Jishangou, Linwei Township, Linqu, flows northward through Yidu and Changle, and joins Mihe River from the right bank in the east of Shouguang Ridge in the Northern Song Dynasty. The length of the river100km, the drainage area is 698.5km2, and the average river gradient is 4.7/ 1000. Source: Shandong Information Database.