伊图里河地区位于大兴安岭西北坡,北纬49—52°,东经121—124°,海拔800—1000m。该区铁路分局南起牙克石,北至满归,东起加格达奇,西至莫尔道嘎,管辖25.61km。该区近三年平均气温-3.9℃,极端最高气温30.9℃,极端最低气温-43.20℃,年降雨量481.2mm,冬季降雪厚210mm,正温持续时间165-180天,负温持续时间 Ituri River area is located in the northwest slope of Daxinganling, north latitude 49-52 °, longitude 121-124 °, elevation 800-1000m. The railway branch in the area south of Yakeshi, north to full return, east of Jiagedaqi, west of Morgega, jurisdiction 25.61km. The average temperature in the past three years is -3.9 ℃, the extreme maximum temperature is 30.9 ℃, the extreme minimum temperature is -43.20 ℃, the annual rainfall is 481.2mm, the winter snowfall is 210mm thick, the positive temperature duration is 165-180 days, the negative temperature duration