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size material . The material is generally subangular to well-rounded. <br /> Boulders up to 3 feet in diameter can be observed in this material . <br /> Colluvial soils cover both sides of the valley. They are <br /> generally dark brown and consist of angular gravels with some sand and <br /> silt and occasional low plasticity clays. Sparse vegetation covers <br /> most of the slopes. It is evident that the thickness of the colluvial <br /> soil cover varies at different locations. Although no accurate estimate <br /> of soil thickness could be made without drilling or the excavation of <br /> test pits , an attempt was made to differentiate areas of colluvial <br /> soils with various thickness . The estimates were made with the help <br /> of available cuts that had been made on the slopes, from observation <br /> of vegetation, frequency of bedrock outcrops and by other means . The <br /> accuracy of such estimation is limited and it would be necessary to <br /> verify these estimates if more accurate information on the soil depth is <br /> needed. <br /> One area of relatively deep colluvial soils was identified on <br /> the east side of the creek at the southern end of the study area, <br /> approximately across the valley from the mine and the ore sorting <br /> facilities. It was estimated that the depth of soils within this area may <br /> be on the order of 10 feet or more. It :s probable that the thickness of <br /> colluvial soil was increased by deposition of significant amounts of <br /> outwash from the slopes above this area. This area could probably <br /> be used for a borrow pit if soils are needed for reclamation or <br /> other purposes . <br /> The remaining part of the study area was divided into several <br /> units where the thickness of the colluvial soil was estimated to be <br /> between 0 - 3 feet, and 0 - 1 foot. Again, these estimates are approxi- <br /> mate only. The character of the colluvial soils is not significantly dif- <br /> ferent from those described above. <br /> - 8 - <br />