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• The location of the 1984 field season transects are depicted on Map 18, <br />Premining Vegetation, of the Foidel Creek Mine permit submittal. The <br />vegetative cover for these transects was obtained using a ten-point ocular <br />frame. Each transect was described using 100 hits. The 1984 transects were <br />used in conjunction with 1986 transects to describe the sagebrush/meadow <br />vegetation type associated with the alluvial valley floor region of Fish <br />Creek. <br />Data obtained from individual pastures were merged to describe particular <br />alluvial regions which might be affected by the Foidel Creek Mine operations. <br />For example, Pastures 1 and 2 are both irrigated with water diverted from <br />Middle Creek; thus, they were used to describe the Middle Creek alluvial <br />valley floor region. Table 3, Middle Creek Alluvial Valley Floor Vegetative <br />Cover of Irrigated Pastures, presents the data of those pastures. Pastures 7, <br />SN, 8S, 10, 12E, 12W, 14, 15N, and 15S are irrigated with water diverted from <br />Trout Creek. The data from these 9 pastures were used to compose Table 4, <br />Trout Creek Alluvial Valley Floor Vegetative Cover of Irrigated Pastures. The <br />• Fish Creek alluvial valley floor region is described using the data of <br />irrigated Pasture 13 and the native sagebrush/meadow vegetation type. <br />Table 5, Fish Creek Alluvial Valley Floor Vegetative Cover of Irrigated <br />Pastures, and Table 6, Fish Creek Alluvial Valley Floor Sagebrush/Meadow <br />Vegetative Cover, reflect the vegetative cover and composition of the Fish <br />Creek alluvial area. <br />In the evaluation of the alluvial valley floor regions, two small areas were <br />excluded from consideration. One of the areas is located immediately west of <br />Pasture 1 along Foidel Creek, noted as Pasture 19 on Map 36, Salt Loading <br />~~ Study. The other area is located downstream of the Foidel Creek and Middle <br />„~,// Creek confluence, in the area denoted as 18 on Map 36, Salt Loading Study. <br />(~` These areas were not evaluated with the other pastures because both are small <br />parcels of undeveloped rangeland (about 10 acres each) which do not <br />contribute significantly to the productivity of the surrounding farm/ranch <br />operations. <br />The plant species growing within the specific irrigated and alluvial valley <br />• floor regions were categorized in terms of tolerance to soil salinity. A <br />3 Revised 10/1/86 <br />