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<br />It is obvious that county engineers and flood plain administrators need some type of <br />guidance manual to identify, evaluate, and classify alluvial fans. The classification system <br />should be based on factors such as hydraulic, geologic, and geomorphic characteristics of the <br />landforms, Also, a very important factor that must be considered is the influence of man's <br />activities on the landform itself if the area is developed or under development. <br /> <br />A-4 <br /> <br />