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-13- <br />Turbidities are very high in the Big Sandy during the spring and early <br />summer. Sufficient silt is carried in the river to form a large delta at <br />its mouth; this delta remains year around. Light, or moderate, amounts of <br />precipitation on the Big Sandy Drainage frequently cause the Green River to <br />become quite turbid as far down as Big Island Bridge. Big Island Bridge is <br />approximately nine river miles below the mouth of the Big Sandy. <br />Station No. 3 - Big Island Bridge <br />This station is located approximately 150 feet above Big Island Bridge, <br />T21N; R109W; 535. <br />Dominant vegetation on the surrounding lands in this section is: grease- <br />wood, Sarcobatus vermiculatus; sagebrush, Artemisia sp.; and rabbitbrush, <br />Chrysothamnus nauseosus. The soil is quite alkaline, and all low areas have <br />a characteristic white alkaline deposit. The dominant grass is saltgrass, <br />Distichlis stricta. <br />Streamside vegetation in this area is dominated by the sandbar willow, <br />Salix exigua; some buffalo berry, Lepargyrea sp, was found. Daisey fleabane, <br />Erigeron divergens; goosegrass, Potentialla anserina; broad-leaved arrowhead, <br />Sagittaria latifolia; and spike rush, Eleocharis palustris, was also found <br />along the streamside. The only aquatic found was the common pondweed, <br />Potamogeton pectinatus. <br />__ -~i~aL` ;i~~ <br />Station No. 3 <br />Looking Downstream Toward the Big Island <br />• ~' <br />-±-sx- .. <br />