SOIL SURVEY

-86-Table 24 . Key criteria differentiating the Kicking Horse map units .Sol Iscape Classification TextureCoarse Fragment DrainageMap Unit Content (%) ClassKI 1KI 2Orthic Regosols and FSL-SiL 0 - 20% moderatel yCumulic Regosols GSL-GLS > 20% wel lGleyed Orthic Regosols & FSL-SiL 0 - 20%Gleyed Cumulic Regosols GSL-GLS > 20%KI 1 Map Unit (Orthic and Cumulic Regosols)imperfectl yThe soils of this map unit have from 10 to 30 cm of medium textured materia loverlying coarse textured materials . There are usually less than 10% coarse fragment sin the medium textured surficial deposit and 20 to 50% coarse fragments in the coars etextured materials below . Most of the coarse fragments are gravel sized but cobbl esized coarse fragments are not uncommon . The water table is generally quite high i nthe spring, but drops to about 2 meters below the land surface in summer . Free calciumcarbonate throughout the pedon and lack of A and B horizon development suggests tha tthese soils receive additions of calcareous silt as a result of occasional flooding .Table 25 . Brief description of the pedon chosen to characterize the KI 1 map unit .Horizo nDepth moist colo r(cm )Est . Coarse H Organi cfragments Texture(CaCI) matter(%) 2 (%)L-F 2-0 very dark brownACk 0-5 dark yellowish brow nCkl 5-12 pale brow n-nil silt loam 7 .0 9 . 5nil silt loam 7 .1 traceIICkl 12-15 light yellowish brow nIICk2 15-33IICk3Cumulic Regoso llight yellowish brow nto pale brown33-50+ light gray406060gravelly fine 7 '1sandy loamtracevery gravellyloamy 7 . 2 0 .5coarse san dloamycoarse sand7 .3 0 .7