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贺兰山磷矿位于贺兰山苏峪沟内,自六十年代初建矿以来,对外交通一直靠沟床内的一条临时便道。每当山洪下泻,冲毁便道,交通便中断,不仅矿石无法外运,就连粮、菜也要靠人背进矿区。七十年代初,该矿正规开采,年产矿石10万吨,因此修筑一条风雨无阻、四季畅通的正式公路,就成为迫切需要解决的问题。72年至71年,在苏峪沟口外山前漫坡地带的12公里沥青路面公路和接近矿区的3公
Helan Mountain Phosphate Rock is located in the Helan Mountain Suyugou, since the construction of the early 1960s, foreign traffic has been by a trench ditch within a temporary path. Whenever floods, washed away the sidewalk, traffic will be interrupted, not only the ore can not be shipped, and even food, food also rely on people back into the mining area. In the early 1970s, the mine was formally mined with an annual output of 100,000 tons of ore. Therefore, it is an urgent issue to build an unimpeded, open and regular highway in four seasons. 72 to 71 years, 12 kilometers of asphalt pavement road in front of Suygou Valley outside the mountain front slope and 3 kilometers close to the mining area