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-a- <br />• Recent instability features have been identified only <br />very high above the haul road. They are landslides of a lim- <br />ited extent and very probably of a limited depth. They are <br />probably limited to the soil cover, although it cannot be <br />excluded that some of them reach into bedrock. <br />The inspection of slopes in the immediate vicinity of the <br />road does not reveal any signs of recent landslides or slope <br />deformations. The construction of fairly high road cuts has <br />not contributed to the development of any larger failure; local <br />sloughs that are present at individual cuts are of a minor <br />importance. <br />It is difficult to explain the considerable thickness of <br />the soil deposits of the southern side of the valley. As can <br />be seen on several cuts of the haul road, the thickness of <br />soils exceeds locally 60 feet. Most colluvial soils in other <br />parts of the area have a thickness of several feet only; we <br />believe that the significant accumulations of the soils at the <br />southern valley side are a result of landslides of an important <br />extent. These soil accumulations, however, do not show any <br />features that are usually typical for landslides. There are no <br />scarps or toes, humocky topography or other features typical for <br />landslides. There have been no deformations on the slopes during <br />the last hundred years; it could be expected that they would cer- <br />tainly influence the morphology of the slopes or the vegetation <br />cover. <br />• <br />