Cold creek、Royster creek及Fletcher creek三條溪流均座落在田納西州西部的Shelby County，分別是Loosahatchie River和Wolf River的支流。以整個Shelby County而論，氣候上並沒有太大差異，但在地形上則呈現北高南低之勢。本文旨在利用河流級數、河流長度、河流分歧率、河流頻率及密度等水文數據，對此兩流域做一比較。從而推論出，儘管Cold creek和Royster creek所在之流域面積較小，但因其較高之密度、分歧率等水文特性，卻對地形展現較大之影響力，致本流域之水文發育，要較之Fletcher creek來得完善。
Cold creek, Royster creek and Fletcher creek are located in Shelby County, west Tennessee. They are the branches of Loosahatchie Riyer and Wolf River respectively. Within the large Shelby County region, the climate and geology are not so different, but the landform of northern part is dissected to greater degree than southern part. In comparing the two basin's morphology such as stream order, stream length, bifurcation ratio, stream .frequency and drainage density, although the area of Cold creek and Royster creek is smaller, their runoff is almost the same as Fletcher creek. In this paper we get a conclusion that the Cold creek and Royster creek has better developed drainage system, their morphology affect more efficient on their runoff.
