SOIL SURVEY

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-100-The steep slopes which are generally associated with this map unit result i nsevere limitations and very severe limitations for recreational and engineering uses .Where slopes aren't limiting, moderate limitations are present resulting from surficia ltexture, stoniness, and potential frost heaving . The severe climate associated wit hthis map unit also indicates that this terrain has high susceptibility to environmenta ldamage .OG - Ogden Soilscape Grou pPhysiographic SettingSK 00RIO D2150mas I2000m o .s I.COLLUVIUMSTRONGLYCALCAREOUSGLACIOFLUV.MODERATELYCALCAREOUSTILLCALCAREOUSTILLNON CALCAREOUS TILL.COLLUVIUM. RFigure 64 . Sketch showing the landscape relationships between Ogden an dassociated soilscape groups .Landform and Parent MaterialThe Ogden soilscape group occurs most often on morainal veneers or blanket sover bedrock but not uncommonly on deeper morainal deposits . The parent material sare compact, strongly calcareous, non-stratified, medium textured, stony till .
-101 -EnvironmentThe Ogden soilscape group occurs in the subalpine vegetative zone a televations between about 1550 and 2000 m a .s .l . The upper limit is that elevatio nwhere the open forest cover of the upper subalpine begins .Table 32 . Key criteria for differentiating the Ogden map units .Soi Iscap eMap UnitClassificationTextureCoarse Fragment Drainag eContent (% )Orthic Humo-Ferric PodzolsOG 1silt loam < 20 wel land Degraded Eutric Brunisols5OG 2 Orthic Humo-Ferric Podzols silt loam < 20 wel lOG 1 Map Unit (Orthic Humo-Ferric Podzols and Degraded Eutric Brunisols )The soils of this map unit are medium textured . The coarse fragment contentis generally less than 20% in the solum, but may range up to approximately 35% i nthe parent material . Generally, the OG 1 map units found in the Yoho valley ar ecoarser textured and have higher amounts of coarse fragments in the parent material sthan those found in the Ottertail, Otterhead and Beaverfoot valleys . Orthic Humo-Ferric Podzols are the most common soils on this map unit but Degraded Eutri cBrunisols also occur, especially at the lower elevations . Those OG 1 map unit swith slopes steeper than 50% may be susceptible to soil creep and significant soi lerosion resulting in map inclusions of Regosolic soils .
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t, Agricultur eCanad aSOIL SURVEYof
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SOIL SURVEY O FYOHO NATIONA LPARK,
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(Contents - cont . . )PageFIGURES1
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(Contents - cont . . . )TABLES (con
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(Contents - cant . . . )TABLES (con
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Gleysolic and Organic soils occur i
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PREFAC EThe soil survey of Yoho Nat
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How to use this repor tThis report
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PARTIGENERAL DESCRIPTION OF THE ARE
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-3-The Kicking Horse River and Kick
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-5-serves hikers in the Lake O'Hara
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-7-mainly in the Cataract Brook - L
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figure 3 . A cirque; typical of man
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-11-Glacial processes are not howev
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-13-Figure 6 . Drainage systems of
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-15-_.iure 7 . Gentle gradients in
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-17-The effect of altitude on clima
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GOLDE NPR ECIP nTAT IO NRAIN + SNO
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Table 2 . Comparison .' of mean mon
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-23-VEGETATIO NGeneral Vegetation P
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-25-The interaction of these soil-f
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-27-profile development is frequent
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-29-PART I IMETHODOLOGYMAPPINGA goo
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Figure 13 . Oblique photo showing t
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Figure 15 . Oblique photo showing t
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-35-~ ♦ YOHO NATIONAL PAR K[D]Ami
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-37-Table 3 . An outline of the loc
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-39-The topography of each mapping
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-41 -must be treated as an independ
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-43-FIELD TEST S1 . Bulk Density; b
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-45-are calcareous, stratified, med
Page 67 and 68: -47-Organic Landform sNorco (NA) is
Page 69 and 70: -51 -LEGENDParent material.colluviu
Page 71 and 72: -53-Table 7 . Key criteria differen
Page 73 and 74: -55-BC2 Map Unit (Orthic and Rego G
Page 75 and 76: -57-Table 10 . Brief description of
Page 77 and 78: ure 24 . This photo shows the huge
Page 79 and 80: igure 26 . Site of the pedon chosen
Page 81 and 82: -63-Figure 28 . Site of the pedon c
Page 83 and 84: - 65-CLI.Figui 30 . Site of the ped
Page 87 and 88: L-69-r_ -, _ 1 4Figure 35 . Site of
Page 89 and 90: Figure 37 . Site of the pedon chose
Page 91 and 92: -73-Landform and Parent Material sT
Page 93 and 94: -75-The silty surface texture, slow
Page 95 and 96: -77-material and/or shallowness (of
Page 99 and 100: -81-HR1 Map Unit (Degraded Eutric B
Page 101 and 102: -83-in the solum, but may exceed 50
Page 103 and 104: -85-KI - Kicking Horse Soilscape Gr
Page 105 and 106: -87-Silty surficial textures provid
Page 107 and 108: -89-Wetness, texture, and potential
Page 109 and 110: -91 -Table 27 . Brief description o
Page 111 and 112: Site of the pedon chosen to charact
Page 115 and 116: -97-NI1 Map Unit (Lithic Orthic Eut
Page 117: -99-Figure 62 . Site of the pedon c
Page 121 and 122: -103-Table 33 . Brief description o
Page 125 and 126: -107-Figure 70 . Site of the pedon
Page 127 and 128: Figure 73 . Degraded Eutric Bruniso
Page 129 and 130: _ • _- - ~ . -. n- C . 1 - r IFig
Page 131 and 132: -113-YpiFigure 76, Site of the pedo
Page 133 and 134: -115-Figure 78 . Site of the pedon
Page 135 and 136: -117-OP 1 Map Unit (Cumilic Regosol
Page 137 and 138: -119-OT - Otterhead Soi Iscape Grou
Page 139 and 140: ure 82 . Site of the pedon chosen t
Page 141 and 142: -123-Table 44 . Key criteria differ
Page 143 and 144: -125-SI2 Map Unit (Lithic Humo - Fe
Page 145 and 146: -127-Landform and Parent Material s
Page 151 and 152: -133-Environmen tzones .The Tocher
Page 153 and 154: -135--The steep slopes and the rela
Page 157 and 158: Figure 97 .Site of the pedon chosen
Page 159 and 160: -141 -EnvironmentThe Watchtower soi
Page 163: -145-The stoniness and periodic sno
Page 166 and 167: Brief description of the pedon chos
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-150-late snowmelt areas or streams
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-152-The soils have been rated acco
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-154-Table 58 . Guides for assessin
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-156-Table 60. Guides for assessing
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-158-Table 62. Guides for assessing
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-160-Table 64 . Guides for assessin
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-162-Table 66 . Frost design soil c
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Table 67r Interpretations for selec
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(cont . )Table 67: Interpretations
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-168-(cont . )Table 67 : Interpreta
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-170-GLOSSARY'AASHO classification
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-172-Clay films (skins) - Oriented
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-174-Field capacity - The percentag
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-176-Humification - The process by
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-178-Mechanical analyses - See part
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- :180-Permeability, soil - The eas
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-182-Slump - A landslide characteri
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-184-organic carbon, or both .BC -R
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-186-Granular - More or less rounde
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-188-Unified Soil Classification Sy
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-190-Bei I, C .E . 1966 . An ecolog
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-192-Hutchinson, D . E . 1976. Reso
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-194-Soil Research and Plant Resear
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-196--Appendix A :Selected chanical
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Appendix BtEngineering test data fo
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Appendix B : Engineering test data
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Appendix B : Engineering test data
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-204-Appendix D :Common names and t
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-206-HERBS (cont )Common Name sCow
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-208-MOSSE SCommon Name sCladina mi
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