我县地势很复杂,北部山区,南部地势低洼,中部是一片肥沃的平原。总面积达1,352.5平方公里,其中山地541平方公里,平原475.17平方公里,洼地336.23平方公里,境内有大小河流12条。解放初期,我县交通很不方便,全县仅有京榆、邦喜、蓟宝两条半坎坷不平的公路,长达105公里,主要铁轮车路4条长65,5公里,两第主要山区驮运路与人行路长55.5公里。这些路线除京榆、邦喜两条能勉强通行汽车以外,其它仅能通行大车、驮子或行人。但因地势复杂,河流较多,土壤种类不一, My county is very complex terrain, the northern mountains, the low lying in the south, the middle is a fertile plains. The total area of ​​1,352.5 square kilometers, of which 541 square kilometers mountain, plain 475.17 square kilometers, depression 336.23 square kilometers, the territory of 12 rivers and streams. In the early days of the liberation, traffic in our county was very inconvenient. There were only two semi-rugged roads in Beijing, namely Jingyu, Bangxi and Thistle, up to 105 kilometers in length. The four main railroad cars were 65.5 kilometers in length and two The main mountain lanes and pedestrians 55.5 km. In addition to these routes Jingyu, Bangxi two barely accessible cars, the other can only pass carts, pigs or pedestrians. However, because of the complicated terrain, more rivers, different soil types,