SOIL SURVEY

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-152-The soils have been rated according to their limitations for playgrounds, campin gareas, picnic areas, paths and trails, septic tank absorption fields, buildings wit hand without basements, and local roads and streets (Table 67) .None to Slight Limitations .All of the soil properties are essentially suited for the proposed use . Limitationsare minor and can easily be overcome . Minimal construction costs, low maintenanceand minimal environmental damage can be expected with proper management .Moderate Soil Limitations .These soils have one or more properties which are only moderately suitable fo rthe proposed use . These limitations can be overcome or modified with special construction,design, planning or maintenance . During some seasons of the year, the performanceof the structure or other planned use, may be somewhat less than desirable for soil swith slight limitations . Some soils with a moderate rating may require treatment such asdrainage, runoff control to reduce erosion, additions to topsoil, or some modificatio nof certain soil features through soil manipulation . Construction plans may also need tobe modified from those normally used for soils with slight limitations . These mayinclude special foundations, extra reinforcement of structures, sump pumps, or otherauxiliary equipment or procedures .Severe Soil Limitations .These soils have one or more properties which present a severe limitation fo rthe proposed use . Some soils which are rated as severe can be improved by reducin gor removing the soil feature that limits its use, but in most situations, it is difficult an dcostly to alter the soil or design the facility to compensate for severe limitations .Very Severe Soil Limitations .These soils have one or more properties which are so unfavourable for th eproposed use that the soil cannot physically be used for that use or it is thought t obe economically impractical to do so .
-153-Guides for Assessing Soil LimitationsGuides for assessing soil limitations for seven possible parks uses are give nin Tables 58 through 64 . These tables provide, as specifically as possible, definition sof the soil properties which result in the specific degrees of limitation . The guides areincluded in the report so that the user can evaluate the criteria used to make the interpreationsin Table 67 .Guides for assessing soil susceptibility to water erosion are also included i nTable 65 . One of the main soils parameters to consider in planning ski areas i ssusceptibility to erosion . Because so many non-soil parameters affect the choice ofski slopes, no attempt was made to evaluate directly the soils as to their limitationsfor ski areas .
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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
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-47-Organic Landform sNorco (NA) is
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-51 -LEGENDParent material.colluviu
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-53-Table 7 . Key criteria differen
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-55-BC2 Map Unit (Orthic and Rego G
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-57-Table 10 . Brief description of
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ure 24 . This photo shows the huge
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igure 26 . Site of the pedon chosen
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-63-Figure 28 . Site of the pedon c
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- 65-CLI.Figui 30 . Site of the ped
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L-69-r_ -, _ 1 4Figure 35 . Site of
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Figure 37 . Site of the pedon chose
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-73-Landform and Parent Material sT
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-75-The silty surface texture, slow
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-77-material and/or shallowness (of
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Figure 44 . Site of the pedon chose
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-81-HR1 Map Unit (Degraded Eutric B
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-83-in the solum, but may exceed 50
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-85-KI - Kicking Horse Soilscape Gr
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-87-Silty surficial textures provid
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-89-Wetness, texture, and potential
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-91 -Table 27 . Brief description o
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Site of the pedon chosen to charact
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-97-NI1 Map Unit (Lithic Orthic Eut
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-99-Figure 62 . Site of the pedon c
Page 119 and 120: -101 -EnvironmentThe Ogden soilscap
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
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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 149 and 150: Figure 91 . Site of the pedon chose
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
Page 168 and 169: -150-late snowmelt areas or streams
Page 172 and 173: -154-Table 58 . Guides for assessin
Page 174 and 175: -156-Table 60. Guides for assessing
Page 176 and 177: -158-Table 62. Guides for assessing
Page 178 and 179: -160-Table 64 . Guides for assessin
Page 180 and 181: -162-Table 66 . Frost design soil c
Page 182 and 183: Table 67r Interpretations for selec
Page 184 and 185: (cont . )Table 67: Interpretations
Page 186 and 187: -168-(cont . )Table 67 : Interpreta
Page 188 and 189: -170-GLOSSARY'AASHO classification
Page 190 and 191: -172-Clay films (skins) - Oriented
Page 192 and 193: -174-Field capacity - The percentag
Page 194 and 195: -176-Humification - The process by
Page 196 and 197: -178-Mechanical analyses - See part
Page 198 and 199: - :180-Permeability, soil - The eas
Page 200 and 201: -182-Slump - A landslide characteri
Page 202 and 203: -184-organic carbon, or both .BC -R
Page 204 and 205: -186-Granular - More or less rounde
Page 206 and 207: -188-Unified Soil Classification Sy
Page 208 and 209: -190-Bei I, C .E . 1966 . An ecolog
Page 210 and 211: -192-Hutchinson, D . E . 1976. Reso
Page 212 and 213: -194-Soil Research and Plant Resear
Page 214 and 215: -196--Appendix A :Selected chanical
Page 216 and 217: Appendix BtEngineering test data fo
Page 218 and 219: 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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SOIL SURVEY

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