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eddies downstream from rapids. Gravel was most common just downstream from debris <br />flow deposits. Gravel ranges in size from small pebbles to boulders, but is most typically <br />cobble size. Debris flow deposits consist of unsorted angular clasts and fines. Talus <br />deposits are unconsolidated angular colluvium, deposited by rockslides. There is generally <br />more interstitial space between particles in a talus slope than in debris fans and the angle of <br />repose is steeper. <br />At base flow discharges, shoreline habitat for the entire reach is predominately <br />unvegetated sand, with vegetation comprising the smallest percentage of the total shoreline <br />and gravel, talus, and debris flow material sharing equal portions. As discharge increases <br />and water elevation rises, the amount of vegetated shoreline in contact with the water's <br />edge increases greatly (Figure 5). Near bankfull discharge, 62 percent of the total shorelin <br />length in the reach is comprised of inundated vegetation (Table 1). Considering only <br />shorelines within low velocity or recirculating zones, sand is even more prevalent at each <br />discharge, with vegetation increasing almost linearly (Figure 6) (Table 2). <br />Total length of shorelines was shown to increase with decreasing discharge. As <br />water recedes from bankfull stage, the shoreline becomes more contorted and total linear <br />length increases. The discharge that maximizes shorelines within low velocity zones, <br />however was not the lowest observed discharge. Shoreline length within low velocity <br />zones initially increases as discharge increases from base flow, but then decreases as the <br />river continues to rise (Figure 7). <br />Historical Change of Habitats Based on Matched Photography <br />In virtually all of the photographic matches that were made there was a pronounce( <br />increase in vegetation along the banks, primarily tamarisk and willow (Photos 1 and 2). <br />Islands and bars that show historical evidence of being scoured are now fully stabilized bS <br />vegetation. Secondary channels have aggraded and filled over time, thus narrowing the <br />river corridor. Islands and bars also show a marked increase in size and changes in shape