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Detailed Soil Survey of the Mount Revelstoke Summit Area.

Detailed Soil Survey of the Mount Revelstoke Summit Area.

Detailed Soil Survey of the Mount Revelstoke Summit Area.

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TABLE B. CLASSES OF FRAGILITY FOR SOILS AND MISCELLANEOUS LAND UNITS, MOUNT REVELSTOKE SUMMIT AREA .Class Definition and Attributes <strong>of</strong> Class <strong>Soil</strong> Units0 No susceptibility to damage . This rating is applied to non-soil R (bedrock)areas such as bedrock exposures and coarse colluvial (talus) T (talus)deposits .1 Moderate susceptibility to damage . <strong>Soil</strong>s, in this class are 1/E, 8/C, 8/Emoderately susceptible to erosion . These are well-drainedsoils on slopes <strong>of</strong> less than 15 percent gradient .2 High susceptibility to damage . <strong>Soil</strong>s in this class are highly 4/C, 6/B, 6/C, 3/Cerodible or susceptible to disturbance by trampling. Well- and all map units ondrained soils on 15 to 60 percent slopes and poorly-drained soils F to G slopeswith silty surface textures or organic layers on slopes <strong>of</strong> less except 4/F and 5/Fthan 5 percent are included in this class . Erosion preventivemeasures are definitely required if <strong>the</strong> vegetation cover isremoved from <strong>the</strong> steeply sloping soils .3 Very high susceptibility to damage . <strong>Soil</strong>s in this class are very 4/D, 4/E, 4/F, 5/Fhighly erodible and may also be susceptible to disturbance byand all map units ontrampling . Well-drained soils on slopes greater than 60 percent H slopes except R/Hgradient and poorly-drained soils on 5 to 30 percent slopes areincluded in this class . These soils should not be used for sitedevelopment if any alternatives are possible . There is a definiterisk that erosion preventive practices would not be successful .

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