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<br />throughout Oil-Shale Country. Robert Bailey of the U.S.F.S. Experiment <br />Station in Ogden, Utah has captioned a picture (Figure 5) of a talus <br />slope in the Teton National Forest with the following: "....So long <br />as the talus slope is being freshly formed by recurrent rock falls, <br />sufficient vegetation cannot become established to stabilize the surface" <br />Figure 3A shows three scree slopes near the Anvil Points mine on the right <br />side of the picture and the mineral waste disposal pile from the Anvil <br />Points mine on the left side. Most of the waste disposal pile at Anvil <br />Points has been in place at least 10 years and has weathered to the color <br />of the natural slopes. The natural slopes show essentially no vegetation <br />over nearly their total extent. <br />Vegetation cannot survive with raw rock sliding and rolling down the <br />surface. Rehabilitation cannot be commenced until the pile is completed <br />• and mineral waste is no longer being added. Material will be constantly <br /> added as the pile is built up and away from the mine mouth. Full extent <br />of the face of the pile will not be achieved until it is essentially <br />complete. <br />Figure 6 shows an artist's conception of the appearance of the waste <br />disposal pile after its completion. As shown on Figure 1, the pile will <br />have a level at the altitude of the upper mine portal and a second level <br />area at the altitude of the lower portal. In his rendition the artist <br />has shown the upper part of the pile, above the lower portal, vegetated <br />to the extent we hope our research will show is possible. The artist <br />has shown the lower part of the pile, below the lower portal, as it will <br />appear if no vegetation is attempted. The lower part of the pile in the <br />. drawing will resemble the eastern (right) side of the canyon where mineral <br />waste already exists and the existing Anvil Points pile shown in Figure 5. <br />-6- <br />