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<br />•~ • SOIL
<br />this complex has a large amount of cobbles and stones on
<br />the surtace, and in some areas there are large boulders.
<br />The Tecolote soil is deep and well drained. It formed in
<br />alluvial fan sediment derived from acid igneous rock. Cob-
<br />bles and stones on the surface range from about 30 to SU
<br />percent T}•picall}•, the surface layer is dark brown very
<br />stony loam about 3 inches thick. Thr subsurface layer is
<br />pinkish gray ver}' gravelly loamy sand about 4 inches
<br />thick. The subsoil is reddish bro++•n extremel}• gravelly
<br />sand}• cla}• loam about 3:3 inches thick. The substratum to
<br />a rlep[h oC fU inches or more is light brown extremely
<br />gravell}• loamy sand.
<br />Permeability of the Tecolote soil is moderate. Effective
<br />rooting depth is 4U inches or more. Available water
<br />capacity is lou• to moderate. Surface runoff is medium.
<br />and the hazard oC erosion is moderate.
<br />The soils in this complex are user) for w-ourllancl, range-
<br />land, recreation, wildlife habitat, and homesites.
<br />The .lame soil is ++•ell suited to the production of native
<br />vegetation suitable for grazing b}• cattle and sheep. I{an-
<br />gelanrl vegetation is mainly mounuin muhl}•, little
<br />bluestem. needleanrlthread. Parry ux[grass, and junegrass.
<br />Deferment oC grazing in spring helps to maintain vigor
<br />and production of the cool-season bunchgrasses on the
<br />Jarre soil. Fencing anal properly locating livestock water-
<br />ing facilities help to control grazing.
<br />Thr Ternloce soil is suited to the production of Douglas-
<br />fir. It is capable of producing about "'l4U cubic Ceet, or
<br />4 'rU1S board Ceet (International rule), of merchantable
<br />limber per acre fa•om a full}• stocked, even-aged stand of
<br />!i0-year-old trees. The main limitations for timber produc-
<br />tion are slope and hazard oC erosion. Special attention
<br />must he given to keep erosion to a minimum k•hen har-
<br />vesting.
<br />Winalbreaks and environmental plantings are suited to
<br />the .)acre soil. Available +ex[er capaciq• is the main limita-
<br />tion Cor the establishment of tree and shrub plantings.
<br />Summer tullou~ a year in advance and continued cultiva-
<br />tion for +reerl control are neerlecl to insure survi+•al. Trees
<br />that are best suited and have good sun•ival are Rocky
<br />Mountain juniper, eastern rerlcerlar, ponderosa pine, and
<br />Siberian elm. Shavbs that are best suited are skunkbush
<br />sumac and lilac.
<br />The Jart•e soil is best suited to habitat for openland and
<br />r:angelanrl k•ilrllife. Rangeland w•ilrllife, such as pronghorn
<br />:antelope, can be encouraged b}• developing livestock
<br />u~:atea•ing facilities, properly managing livestock grazing,
<br />tool reseeding range inhere needed.
<br />The Tec•oloce soil is best suited to woocllanrl +vildlife,
<br />a•.slaeci:all}• mule deer, +vild turke}•. and blue grouse. To en-
<br />courage +cild turkey in areas v+•here there is little or no
<br />water, wildlife .watering facilities, such as guzzlers, ran be
<br />rloveloperl. Because of the steep slopes, livestock grazing
<br />should be discourager!, +t'hich would benefit the wildlife
<br />that use these areas.
<br />The main limitations for urban development on the
<br />.1:arre soil are slope, shrink-swell potential, and moderate
<br />frost aMion potential. Special site or building designs are
<br />SURy EI' •
<br />required becau a of the slope and shrink-swell potential
<br />Designs to overcome the limitations of slope, shrink-s++•ell
<br />potential, and moderate frost-action potential are also
<br />required for marls and streeLC Practices must be pro-
<br />virlerl to minimize surface runoff and erosion
<br />The main limitations Cor urban development on the
<br />Tecolote soil are steep slopes and the presence of stones
<br />The presence oC scones can cause problems ++•hen exca+•at-
<br />ing for installation of unclergrnunrl utilities. Heavy equip-
<br />ment can be used to move the stones +vhen preparing
<br />building sites or +vhen constructing marls. Plans for.
<br />homesite development should provide for the presen•a-
<br />tion of as man}• creel us possible to maintain the esthetic
<br />value of the sites, Capabiliq• subclass VIIe.
<br />39-l~eith silt loam, U l0 3 percent slopes. This deep,
<br />Hell drained soil formed in silt}• eolian material on
<br />ul>lanrls. Elevation rtnges from i>,i>UU to :i,HINI feel. The
<br />average annual precipitation is about 13 inches, the
<br />avenge annual air temperature is about 4!I degrees F,
<br />and the average frost-free period is about 14:> days.
<br />Typicall}•, [he surface layer is brown silt Inam about K
<br />inches chick. Thr subsoil is bro++•n or gr:a}•ish brown silty
<br />clay loam about '_" inches thick. Thr substratum to a
<br />depth of iitl inches or more is pale brown silt loam.
<br />lnclurled +rith this soil in mapping are small areas of
<br />Ascalon saml}• loam, 1 to :i percent slopes: Fort Collins
<br />loam. U to a percent slopes; Stoneham sanely loam, :S to i;
<br />percent slopes; and Wiley silt loam. 1 tots percent slopes.
<br />Fermeabilit}• oC this Keith soil is moderate. Effective
<br />rooting depth is 1.11 inches or more. Available .rater
<br />capacit}• is high. Surface runoff is slo+v, and the hazard of
<br />erosion is morlcra[e.
<br />Until recently about 12 percent of this soil +cas used for
<br />irrigated cropland. Urbanization is rapidly eking this
<br />acreage out oC farm production. A small acreage of this
<br />soil is used for nonirrigated crops. Wheal, surlangruss,
<br />and forage sorghums are the main crops.
<br />If this soil is irrigated, it is well suited to small grain,
<br />field corn, alfalfa sugar beets, and specialty crops such as
<br />asparagus and su~eec corn. Hardy varieties of apples have
<br />also been grown successfully on this soil. Irrigation water
<br />management, land leveling, and maintenance of organic
<br />matter content are the main management practices
<br />neerlecl on this soil. This soil is limited for nonirrigatecl
<br />crops because oC lou• average annual precipitation and a
<br />hazard of soil blo+ving.
<br />This soil is w'el] suited to the production of native
<br />vegetation suitable for grazing. Rangeland vegetation is
<br />blue grams, ++•estern u•heatgrass, side-oats grams, drop-
<br />seed, and galleta. Production vanes from year to year, de-
<br />pending on the amount of precipitation received.
<br />Fencing and properly ]orating livestock watering far~li-
<br />ties help to control grazing. Deferment of grazing ma}• be
<br />necessary co maintain the proper balance bet.veen
<br />livestock use and forage production. In areas where the
<br />plant cover has been depleted, pitting can be used to help
<br />the natural vegetation recover. Chemical control ma}• be
<br />needed in rlisturbecl areas where dense stands of
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