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• ~ .. '' i <br />RANGE SITE N0. 289 - :. Page.:3 ..' <br />CLAYEY FOOTHILLS - ;': ~:. <br />August 1975 - •- <br />.. j``•i' <br />. .. ~ , - <br />4. Total.Annual Production. _ .:;~t•_-., - ' <br />Favorable years " 1200 Pounds per Acre Dry Af•r..: - ,`~ <br />Unfavorable years 600 " " ;,,,..c •. <br />Hedian years - x..900 " " " " " ~~ - <br />. _ <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 -:.ti':: _ - _ <br />- ~ textures are mostly clay or clay loam.:_In some cases,ehere '. <br />is a thin loam surface layer; but the majo~'inf.luence is - ~• " <br />• from heavier material. There is generally a wall-developed''.,.~•'__ <br />textural-B horizon. Permeability.is slow, but excellent •~,, .-. . <br />storage ~f.water_favors.extension.of growth into. dry weather: ~ ' <br />' However:,=the _hlgh wilting-point can~be a sign(ficant factor`: -- .. _' <br />'. In dry summers: The shrink-swell potential 'is h(gh: These :'- ~. ' <br />soils 'are subject to severe:water erosion.'if plant cover'is,''.~.::'~'^~~ _ <br />:i <br />... weakened... .~yy~1'{„f' •{b~:..... _ <br />b. Soils in this site are: SQD, 89B ~i++/k~,.r ~• <br />B.~1kl~y cloy loon 3b r r38AE: ~ ~~ ~._~_..• <br />Carmack clay ' <br />Colona silty clay loam jf.~ AE ~ ..:-X6.F -?b'41k1~`P~~'~- .. <br />s.~-%~.x!~n k4 AE - . <br />Hott clay loam _ .- ~°~i ~ .:Cu.~d,rs-~s <br />Lockerby' clay ,loam-(all phases) X~QhE, . ~~ - ~ _ <br />Yamae loam _ - .X01.0 "-~ YMxtz, ~+~~- - <br />~7, ._ <br />- 6.~ Rare, Threatened.or'Endanyered'Plants and Animals:•~3L.,L~~=_~a,:a~'i.1c.L...~-'. <br />(To be added when known)- _ _ 1 ~•' - - •~~~ ,. - <br />"~r-- <br />• •.; ,. <br />7., Location of Typical~Example of `the Site '. ~ - ~•- ~ _ <br />' .y... _ <br />'Colorado Division of V11d1ife Tand, Sunnyside_Area, northwest:~._~' '~ _ <br />' of Col bran, Mesa County ~ _ ~ •'_ <br />Doug Hindmarsh range just west of Mesa Verde National•Park;`'-:~-~~._ ~ _ <br />entrance and north of H(way i60,,east of Cortez, Hontezuma • <br />-• <br />.. = ` •. <br />~r1o•ej1 O~~S Panencar Fe~f%fi Ca 1'.In Roc.1(S <br /> <br />