The rock stream is one of the most famous geological remains in Mountain Tai National Geological Park .Many geography enthusiasts are attracted by the process of its formation ,which is still disputed .By field research ,the formation of the rock stream was analyzed in this paper .It is the joints or cracks developed in the rock that makes it easy to break the rock into pieces .The climate on the top of Mountain Tai is the driving forces to break the rock apart by frost wedging .The gentler slopes in the north of Mountain Tai and the special structure of landforms in Houshiwu area make it possible for the rock streams to form and reserve .%岱阴后石坞石河景观是泰山国家地质公园地质遗迹之一，其成因一直颇具争议。通过实地考察，认为泰山岩石虽然致密坚硬，但由于构造节理、裂隙发育，再加上山顶独特的气候条件，为岩石的崩解创造了条件，而泰山南陡北缓的地势和后石坞一带特殊的地形条件则有利于石河景观的形成与保持。
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