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annual observations of the surface cracks and depressions in the landslide area on Jumbo <br />Mountain above mined longwall panels 8 and 9 determined that landslides are very likely only <br />related to natural mass-gravity movements and not related to mining. <br />Baseline information should be gathered in the eight areas with low to moderate rockfall potential <br />that are listed in Section 10.2 prior to any mining activities. Evidence of naturally of these areas with <br />a rockfall potential should be documented prior to mining. <br />U <br />• <br />Tetra Tech - 090717/P 23