Detailed Soil Survey of the Mount Revelstoke Summit Area.

occurs under the Bf .This horizon is very difficult to penetrate andacts as a barrier to water movement and plant root development .Belowthe Bfc is the yellowish brown sandy loam textured till of the C horizon .The following is a brief description of an Ortstein Ferro-HumicPodzol typical of map unit 9 soils .Horizon Depth (cm) Color Texture % C .F . % O .M .Ahe 0 - 5 dark brown SiL 5 10 .8Bhf 5 - 11 dark reddish brown SiL 10 18 .0Bfc 11 - 24 dark reddish brown LS 15 2 " 9C 24+ yellowish brown SL 15 -The Podzolic soils of map unit 9are distinguished from those ofmap unit 8 by the absence of an Ah horizon, or only a very thin Ah in theformer, and from the soils of map unit 1 by the absence of an Ah and thepresence of the ortstein horizon in the map unit 9 soils .The landscape on which these soils occurs ranges from class Etoclass G with the more steeply sloping class G (30 to 60 percent slopes)being of greater areal extent .The slopes are often limiting for variousrecreational uses . Erosion hazard of the disturbed soils is high . The Aeand upper Bf horizons are very loosely structured and friable and theortstein layer restricts downward water movement .Soil Map Unit 10(Lithic Humo-Ferric Podzol)The Podzolic soils of this map unit have a bedrock (lithic)contact within 50 cm of the surface . These soils are associated with thePodzolic soils of map units 9 and 8 and represent a lithic phase of thesesoils where bedrock and shallow deposits of till occur (Plate 6-a) .The