历史上产生过许多天然滑坡坝，有些很快发生溃坝，有些存在时间很长。
In the history, many places developed a lot of natural landslide-dams, some broke quickly, some existed for a long time.
据记载，大禹治水的起点是“积石”，与曾有滑坡坝存在的那个峡谷同名。
The place where he began his operations is recorded as Jishi, which has the same Chinese characters as that of the gorge where the landslide dam occurred.
存在时间较长的滑坡坝，它周围风景秀丽，成为旅游热点地区，同时也可开发其水资源。
They have a beautiful landscape and become favorite areas of tour around the landslide-dams existing for a long time, also they can supply water resources.
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