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<br />RANGE SITE N0. 289 Page 3 <br />CLAYEY FOOTHILLS <br />August 1475 <br />--- <br />4. Total Annual Production • <br />•Favorable years 1200 Pounds per Acre Dry Air <br />Unfavorable years 600 " " " <br />Median years - 900 " ~ " " " " <br />5. Soils <br />/~ <br />• a. Soils are mainly derived from marine shales. They are deep <br />to moderately deep and are generally rock free. Surface <br />textures are mostly clay or clay loam. In some cases there <br />is a thin loam surface layer, but the major influence is <br />from heavier material. There is generally a well-developed <br />textural B horizon. Permeability (s slow, but excellent <br />storage of water favors extension of growth into dry weather. <br />However, the high wilting point can be a significant factor <br />in dry summers. The shrink-swell potential is high. These <br />soils are subject to severe water erasion if plant cover is <br />weakened. /y~c~'~.~ c'o <br />_ b. Soils in this site are: 38D S9B Pi~aff.~~..G ~ <br />3.,lkle.y clc:y lcc.,n 39 r Y 3 8AE 3"B c ~ <br />Carmack clay ~ ~! <br />Colona silty clay loam ~.3 ~B ,Y6F ' 84.~~/ t <br />_ Hottclay lmoam k9AE /an~F_ Ca,.,.p•rS T <br />Lockerb cla loam X{4RE P „~~ <br />y y (all phases) Jt /l0 - Y~n>••c. ~~ ~ <br />Yamac loam <br />~; <br />6. Rare, Threatened or Endangered Plants and Animals ?? l~.- Y2,.-n~ ~~~....- <br />(To be added when known) <br />,. <br />~ ~~ <br />?. Location of Typical Example of the Site <br />Colorado Division of 1111d1ife land, Sunnyside Area, northwest <br />. of Lolbran, Mesa County <br />Doug Hindmarsh range just west of Mesa Verde National Park <br />entrance and north of Hlway 160, east of Cortez, Montezuma <br />i,ounty. <br />Ctiorchals RanC~ near ~e/'r%Ficar:on f;ec!(S <br />/'^ <br />• <br />