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-26- <br />The sampling site is located on the east side of the river along the <br />bank. At this location the river current had swept the sand off, leaving <br />an area of gravel. This gravel is from 1 to 5 inches in diameter, and is <br />interspersed with sand and clay, forming a firm bottom. <br />Diatom growth is very light at this station; Tabellaria, Fragilaria, <br />and Navicula were found in small amounts. <br />Zooplankton populations were also light, with an average of .42 or- <br />ganisms per liter recorded. <br />Bottom fauna populations were composed primarily of Diptera and Ephemer- <br />optera. <br />Station No. 7 <br />Looking Upstream Toward Linwood Bridge <br />Approximately 1 1/2 miles below Station No. 7 the Green River enters <br />Flaming Gorge Canyon, and from this cleft in the mountain side, it is con- <br />fined by steep canyon areas which extend below Ashley damsite. The cover <br />in this section changes drastically-from that found in and above Station No. 7. <br />Cedar and pine trees dominate the hillside areas, and in many places, extend <br />to the river's edge. Some valleys enter through the canyon area. These <br />valleys are sagebrush covered, and the sagebrush extends to the river's edge. <br />Four tributaries worthy of note enter the Green River between Station <br />No. 7 and Ashley damsite. These tributaries are: Henry's Fork, Sheep Creek, <br />Carter Creek and Cart Creek. <br />