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<br />'1'rnt•elrrs S1•rirs
<br />The Tr:n'clcrs sm'ies eali.cisLs of shallow, n'cll
<br />drnincrl ar sonun+'h;~t cxc'e.esi+'ek drained soils. 'I'hcsc
<br />sails formed in resirluum wra lhcrcrl fmm basalt on
<br />foothills cool mesas. Clapes :u e :S to 2:, percent. Lleea-
<br />tiuu is 7,SUU to S,1i00 feet. Natural vcl;elation is domi-
<br />n;mtly blue gr:una, snal:ctviced, low rnbbitbrush, Indian
<br />ricegrass, :utd tvinterfat. 'the average annual precipi-
<br />tation is about 9 inches, the mcm annual air tempera-
<br />turc is :,Lout 97° P', and the frost-free sclson is 90
<br />to ]OS days.
<br />In a rcln'asenintice prnfde the surfar•c lay'cr is d;u'k
<br />brown eery stony loam about. 3 inches thick. 'flee sub-
<br />soil is dark brutvn very stony loam about 6 inches
<br />thick. The snbstralum is gr:p'i.ch brnt,n loam about
<br />7 inches thick. Lxsalt is at a depth of about ]G inches.
<br />Pcrmc;ibility is moderate, and the at;tit;~hle haler
<br />capacity is ]on•. Rc;irtion is nxulcratch~ alkaline. "the
<br />effective rooting depth is lU to 20 inches.
<br />These soils are used for range, wildlife, and recrea-
<br />tion.
<br />P,epresentetive profile oC Travelers very stony lo:un
<br />in nn v'ea of Travelers-Garita complex, 5 to 25 I+erceut
<br />slopes, 2,] 90 feet east and 2,000 feet nw'th oC the
<br />southwest caner sec. 39, T. 37 N., R. 7 E.
<br />A]-0 to 3 inches; hrnu'n (]OYP. :i/3j eery stony Inam, dark
<br />broa.n (]0}'R 3/3) moist; mode rate Gnc granular
<br />stnirta~rc; soft, arty Enable; :10 pen cnL stones,
<br />mostly Lnsall; rahnrrmis; nunlerately nikaliae;
<br />ehs~r smrrtdh Lnu nda n'.
<br />R2--3 to 9 inch~•s; ln~oa.n (]Pl'P. ~i/3) cerc stony Inam,
<br />d:+rk Lro+rn (10'i R 4/3) moist: modo>ate mcdinm
<br />su Langnlar 6lockp strurtu rc p:+rting to movie. rate
<br />One gr:uiular; slightly hard, ,cry friable; 40 per-
<br />cent stones :axl eobLles; cnlcarcous; moder:d el}'
<br />^Ik;+h ae; g~;~du;+l aoa ep houndarp.
<br />Cca-91o lf, inches; light. brc+s~~nish gray (]OYR G/?) loam,
<br />grayish Lroun (70}•12 v/2) moist; nm5ci+~e; hard,
<br />fnal,lr; qq percent ston••s and cobbles, mnstl}'
<br />Lnsal t; cl slblc 6ccnud:u~,~ c:+lc•ium ra rhonale nrcur-
<br />ring :+s cnnu coons in thin scams and strrnks and
<br />as coatings on y;racel fragrncnts; strongly ral-
<br />careous; nvnlerately alkaline; abrupt mace bound-
<br />ary.
<br />R-7G indres; basalt Led rock.
<br />The Al horizon is 2 to v inches thick :u,d is sere stn nc
<br />Inam or eery stmry sand}' leant. 'fhC H3 hm~izon is 4 to 15
<br />inches thick nnrl is Inam nr light clay Inam. Tlir content of
<br />coarse fragments, dominantly basalt sLmrs and eobLles,
<br />ra ngC from °5 to 75 pr rc; nl in the R and C hori cons. Depth
<br />to Irerln,ck range= from lU Ln ?0 in hos. C~-d rock is dmni-
<br />nantly Lasalt, tut antr~sitr ;cud tattle occur in some potions.
<br />"{'rF.- •F•ra.rL•rs ten sb,ne ~;utdc loan,, 3 In 2.i prr-
<br />ernt slopes. 'I'bis gently' sloping to na,rhrnlcly' sl c•r•p
<br />soil occupies foothills :uul small ntes:~s ;ih~ng Lhc west-
<br />ern edge of the valley'. The profile of this soil is simil:n•
<br />to the anc descrilu•d as r~•lnrsentatlve of the srvir~s,
<br />huL the surl'arc layer is ten stony ~:~ndr ln:un..~brmt
<br />]fi percct~t of this unit i~~ iucln~lcd :u~cas of CariL1
<br />cobbly loam, ~ to °;i percent slopes, and about lU per-
<br />cent areas of Frock outcrop.
<br />-~ Punoff is nnxlerate. 'the haz;u'd of nat.er erosion is
<br />moderate.
<br />This soil is used for range ;uxi wildlife. Capability
<br />snit \'IFs-8 nonirrigated; I;asalt ]IiHs range site.
<br />I'.1•:--'I',ntrlrrr(:nriln rrnuldrtt, 5 Inl.i I,rrt•cu'
<br />.1„pre. 'fhi •nll}• sloping to nu,rleralcly 51eep trugt
<br />Airy; unit ~~ ,ir:9 foothills earl srtwll 1111.9115 alnu{,r th,
<br />wr~arrn e~l)m of the vnlle>•. It i5 ;lfl to U(1 prrrenl
<br />'l'r:nrlors eery' ~1ony loran rout 2U t0 40 pcrecnt r:uit:+
<br />coLhly loom. 'I'hc 'll'at'clcrs sail h;is Lhc prolilc do
<br />scribed as ropreseninticc of the series. 'the l;nriln soil
<br />h;is a profile sinril:u' to Lhc one rlesrrihcrl as represcn
<br />lalivc of the series, but filop(•R :rl'C i to ?:, pcrecnt. 11
<br />ucruts mostly on fact slopes ne:u' the battum of hills.
<br />]nc•lurlerl with this unit in mapping at'c steep soils
<br />that h:n•e slopes of 25 to 75 percent. About ]5 percent
<br />of this unit is included areas of ].uhon loam generally'
<br />;rt the hotlrnn of hills or in n;u'ron• galleys, 25 pcrecnt
<br />:ueas of ]:ock outcrop nuistly on hilltops ;md at Ih~
<br />crlge of mesns.:uul 75 percent Cclestc e>;trcmely stony
<br />Inam in ;u ens at the higher elecalions.
<br />P.una(f is moderate to rabid. The hazard of tv:ttei
<br />en~siun is moderate. Small gullies have formed on
<br />many of the steeper slopes. '.bust of the small valle>':
<br />are cut by gullies 2 to R feet ricep and 3 to ](1 feet n'ide.
<br />'this mapping unit is used fur range and wildlife.
<br />Came :u'cas ;n'e used for recreation. Capability unit
<br />\'IIs-8 nonirrigated; Travelers soil in Exsalt Hills.
<br />rnnere site; Garita soil in Limy French range site.
<br />"hypir Fln+arlul•nIs
<br />'ft-'f\l~io hlua:~yur•nrs;ire somewhat poorly drained
<br />or poorly drained and occupy low, nearly' level flood
<br />plains along the P.in Grande and some of its major
<br />tributaries. Slopes are (I to ] ilercent. Fluvagncnt~
<br />formed in alluvium morn than 20 inches thick over
<br />s;nul sort gr:,vcl. The surRu•e layer and nnderl}•iup
<br />I.ry'cr r:rnge from loam to clay loarn. In many places
<br />lbe soil material is liiy;hly' stratified. There are many'
<br />old sl reran channels rout oxbows.
<br />Salinity is ]otv l0 nuxlcr:de. The wafer table is at a
<br />depth of ]2 to °_9 inches late in spring and in sununer,
<br />but drops to SG to GO inches in winter. Flooding is a
<br />haz:nr] in spring when runoff is high from me)Ling
<br />snow in tl~e mountains. I'orn}eability is moderate to
<br />nualeraicl>• slmv, and available water rapacity is mod-
<br />erate. Funoff is slow. The erosion hazard is slight.
<br />Ty'pic Fluv;iquents are used for irrigated meadon'.
<br />irrigated small grain ;rod alfalfa, turd for range. Dfead-
<br />oavs are c•uL for hay or aced for grazing. Fegetablc~
<br />;aid potalors ;n e not ~uileri, \atural vegetation is alkali
<br />sacaton, sedges, ruches, and tcestern trheatgrass.
<br />Capabilit> unit )lln'-2 irrigated, \'lu•-1 nonirrigated;
<br />Salt Dieadoe' ranore site.
<br />T~'I,ic Tnrritlucrnts
<br />Ttr-'ftpic Tar,;flu.rnts ore nearly level and exces-
<br />sivcly rlrainorl and occupy' the flood plain of the P,io
<br />Gr;uule. Slopes me 0 1o I percent. The soils range from
<br />k+nm to sandy loran and rue generally- stratified foal
<br />underlain by sand ;aid gravel at a depth of 8 to 20
<br />inehrs, On abauf 3!1 perront of this unit the soil matc-
<br />rial is deopcr nccr sand :uul ;,•racel because old stream
<br />channels h:n'c Imrn filled in. hu'luded in mapping :n'c
<br />grncel bars, nhich make up about 10 percent of the
<br />unit.
<br />Ty'pic Tarifiucents are droughty. Permeability is
<br />moderately' rapid, and the available water capacity is
<br />lot+'. 'the water table is generally- mm'e than 3 feet deep,
<br />but rises to 2 to 3 feet for short periods late in string
<br />sort early' in summer tt hen runoff is high from melting
<br />snot+ in the mountains. Runoff is slow. The erosion
<br />hazard is slight,
<br />Typic Torriflucents are used mainly for range. Some
<br />areas are used for tt'ildlife. Some small areas are used
<br />for irrigated small grain and alfalfa. Xatural t'egeta-
<br />tion is coif+ntw.u~d :cud tcilli,tcs and an uudetstor}' of
<br />grasses and sedges. Capabilitc unit, 1\'s-9 it'tvyatod.
<br />VtL.. Y ._ s_ - '
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