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16 <br />Station 8 - VTN (Figure 10): The valley bottom in this area was wide <br />and flat, but at the immediate sampling site, a steep cliff bordered the river <br />on the right bank. The river was of relatively uniform depth (average 2 ft <br />[.6 m]) and width. The current was swift compared to other stations. The <br />bottom was predominately sand covered with occasional areas of rubble. One <br />small backwater pool was located and sampled. <br />'Station 9 - Dam Site (Figure 11): The river flowed against a steep, <br />barren embankment on the right side; banks on the left were broad, flat and <br />covered with cottonwoods and a variety of grasses. The river was of uniform <br />width and depth (maximum depth 3 ft [1 m]) with little habitat diversity. <br />No backwater pools or braided channels, which are possible larval rearing <br />areas, were present. Bottom substrate was sand, gravel and small rubble. y <br />Station 10 - Asphalt Wash (Figure 12): The river flowed against a steep <br />embankment on the left side but on the right, the banks were low, flat and <br />well protected by grasses and exposed roots of nearby trees. A wide, shallow <br />pool and a long riffle were sampled. Sand, gravel and small rubble substrate <br />predominated. A backwater (100 ft long [30 m]) with a muck covered bottom <br />was present just below the riffle and was sampled. <br />Station 11 - Atches Wash (Figure 13): An island split the river at this <br />point into channels of about equal size. Both had a relatively high gradient <br />causing swift water conditions compared to other stations. The sample site <br />included the lower end of a pool just upstream from the island. A diversity <br />of habitat was present. The pool substrate was sand and silt; that of the <br />braided section was rubble.