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<br />Lily Park S1te (Upstream of Little Snake) - 9/25/84 <br /> <br />Air photo - channel morphology appears to be stable over the <br />time period studied. Sand bar locations have shifted slightly <br />1n 1981 photos and bars are slightly more numerous, flows are <br />higher (but very similar) in 1981. Substrate descriptions are <br />predominately sandlsilt with minor notations of willows and <br />cobbles. <br /> <br />Conclusion: Dynamic equilibrium is assumed (need cross sections <br />at different flows and longituainal profiles plotted). <br /> <br />Cross Mountain Site - Mouth of Gorge - 9/25/84 <br /> <br />Air photo - channel morphology controlled by steep canyon and <br />high gradients. No changes are noticeable between photo sets. <br />Cross section plots indicate no change in bed location with <br />change in flows. (Substrate generally rocky/silty.) <br /> <br />eonclusion: Stability is a correct assumption. <br />