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' I rl .. l.r L •,, Itnr h „nt,,r,l, +..m l,lr t, o d. °.r In rrrul
<br />ilopr+. 'I'bis 1[rntly slnpin{l 1rr nurdrr h' strop nralr.
<br />ping unit is about SU lu•rrcnl ('rlyd Irrurrly strnn'
<br />lo;nn and •14 percent P,urk nulcrup. t is m;linh' in
<br />^urunlainous :u~c;rs. In Weary small Wrens the slope
<br />]:urges to ]Ott perr•ent. 'there :n'c many u:urutc valleys
<br />:aid rlr;rinabrctt'a>'s. Carries ^ to R frrL deep and .", lu 7?
<br />fret wide hnt'c farmed in must of the vnllet•s. 'These
<br />putties razz)' rnnuff crazing :uul nfl rr rains. P,nck nut-
<br />crup consists of exposures of bedrorl: and vertical cliffs
<br />and escarpments with ]0- to 70-foot drops. Nam• huge
<br />boulders are m] the slopes below the esc•:n pments.
<br />Included with this unit in m;rpping are small :Hess
<br />of .Turlero loam in the nv~row unllccs ;uul sm;rll ;u'eas
<br />of a very shallow soil, less than 10 inelrrs dreg over
<br />6edruck, that is intcrminglcrl with the 1;nck rndcrop.
<br />About 5 percent of this unit is inchrded ;ircas of rnrita
<br />culrbly loam and Travelers very stone Inam.
<br />• Runoff is rapid. The hazard of water crusinn is high.
<br />This nrrpping unit is used fur r:urge and n ilrllife. Jt
<br />is an important habitat for doer. Calrahilit~' unit \ lls-1
<br />nonirrigated; Celeste soil in Rut•ky Foothills r:urgc site;
<br />Puck outcrop not assigned to a range site.
<br />Derrick Scrics '
<br />The Derrick series consists of well drained soils 10
<br />to 20 inches deep over gravel :rod rabbles. 'I'Lase soils
<br />formed in cobbly alluvium on alhrvial fans and terraces.
<br />Slopes are 0 to 3 lrm'cent. Elevatimr is 7,600 to 8,'_'00
<br />feet. Natural vegetation is dominantly blue grarna, ring
<br />nwhh•, sand dropseed, and lint- rabbitbrush. The
<br />average annual precipitation is about 7 inches, the
<br />mean :uunral air tenllrcr;rture is about 91° F, and the
<br />frost-free season is 00 to 7 Oa clays. '
<br />In a representative profile lire surf:r~ e L+ver is d;u'k
<br />grayish bruttn r•nblrh loam ^bont •1 iruhos thick. 'fhe
<br />subsoil is dark brown very gr:noll~ clay lu:un or eery
<br />gravelh• htnm about 78 inches thick. 'The substratum
<br />is gravel, cobbles, and sand that extend to a depth of
<br />GO inches nr mm'e.
<br />Pernu~al}ilily is nx,deratu, mnl the at:rilalde hater
<br />r;rpacity is lots m' moderate. I;cu•tion ranges from
<br />neutral to'moderately alkuliue. The elTectivc routing
<br />depth is 1(I l0 20 inches.
<br />These soils are used fm' range. irrigated crops, :nrd
<br />wildlife.
<br />Representative profile of Derrick cobbly roan}, 1,500
<br />feet west of the nm'thcast cm'ner sec. 2, T. 37 N., F,.
<br />7 E.
<br />Al-0 to 4 inches; rich[ hrorr rush gray (]UYR G/?)
<br />cabhly loam, dark grayish bro,cn (lb}"C 4/°_)
<br />moist; nurdrrafc foie gra rt u!:v stru craze; xnfl, .err
<br />friable; .95 pr•r, rat rabbles and gran rl; nrnlral;
<br />gradual smonih bnu nda rp.
<br />Ii2t-~-d iu 14 innc~s; brown (7.5 }'It 5!:1) very gr:r crdlc rh+v
<br />In:un, Ja rk Ln,w'n (255'1: A/3) moist: nra~k
<br />utcdium prism:dir sl rurturc }ia cling to moderate
<br />liar sulm n!'ulnr Llnrky; hard, frig blc; Ihin non rly
<br />rontinnuus clay films nn prd.v :cud in root rh:~mmis;
<br />f(r perr,•ni. roLLlrs and pea rrl; mildly :dk:rli nc;
<br />13 •'.ca ~-]A to 17 innc~s; Lru~cn (10}-H 5/31 cen' (~. r:r •: ell}•
<br />loam, dart: brmvn (lUS'lt 9/3) moist; weak medium
<br />subangular blocky stnrrt ore; soft, cer}' friable;
<br />few thin patchy r.iay films on ],eds; i0 percent
<br />~ cobbles and gravel; visible se•rmrdary calcium car-
<br />bonate occurring as concrMinns in thin seams and
<br />st rcaks and as castings nn ran rse fragments; cal-
<br />carcmrs; nmdoratcly alkaline; gradual wavy hound-
<br />art'.
<br />71Cca~-]. to f0 inehrs; yr ry I; rn'clly =and; ra rl,r,nale
<br />roalings nn coarse fr:rg nr,~nts; GO pen'enl roLhles
<br />and gravel.
<br />The Al horizon is 3 to G inches Ihick and is cobhlc loam
<br />to graven}' sandy loam. The R'?t horizon is 4 to 1?inches
<br />thick and is rerr cohhk clay loam in some pedons. The
<br />content oC gravel »nd rohblcs in the A horizon ranges from
<br />3v to v0 percent and lrom 35 to i0 percent in the R horizon.
<br />Uel+lh to lime ranges from 8 l0 30 inches.
<br />Ur--nrr,irl, rr,hhl)' Irnun. 'I'bis nrnrly lct•Cl or very
<br />)vvitl}• sloping ~orrupirs alhn•ial faun Hurl tcrrnc•cs.
<br />S1nl a•.e :u~r 0 to •rront. About lf. prrront of this unit
<br />is inrludcrl :uoas of Grncpoint. gravelly xandy loam taut
<br />small areas of I'lat.uru ~lnam :urd Dunul cobbly sandy.
<br />lo;un.
<br />Punnlf is slu+v. 'f Lc erosion haz;u d is slight.
<br />This soil i.c used ul:rinly far range ;uul wildlife, Some
<br />zmall :urns are used for irrigated crops. C;rl,ability
<br />writ ]\'s-] irrigated, \'lls-7 nunirrigated; Aluuntain
<br />OuLtrash range site.
<br />Dunul Scrics
<br />The Dunul series consists of excessively drained
<br />soils G to 70 inohcs deep over grroel, cobbles, and sand.
<br />'these soils formed in cabhly alluvium on alluvial fans.
<br />Slopes are 0 to 1 percent. Elevation is 7,G00 to 7,900
<br />feet. T~ratural vegetation is dominantly blue grams,
<br />]action riccgrass, snaketveed, and lott• rabbitbrush. The
<br />aceraore ;urnual precipitation is about 7 inches, the
<br />me:+n annual air temperature i5 aliuut 91° F, and the
<br />frost-free season is 90 to ] 05 days.
<br />)n a rchn~csenL•rtive profile the surface layer is dark
<br />grayish brotcn cobbly sandy loam about ]0 inches thick.
<br />The underlying material is dark gray eery brrave]]y
<br />sand that rstends to a depth of 00 inches or ma'e.
<br />Permeability is rapid, :md the available tt'ater
<br />calracity is low. P,eatliun is moderately alkaline. The
<br />elTr.~~live rooting depth is G to 12 inches.
<br />These soils ;i'e used for irrigated crops and for
<br />range.
<br />Rcpresenlative profile of Dunul cobbly sandy loam,
<br />1,500 feet oast. and 800 feet nm'th of the southwest
<br />rrirncr sec. 18,'f. 9G N., P.. 8 E.
<br />Ap 0 to 10 inr'.rs; 7rrspish brown (]OY P. 5!^_) cobbly
<br />gaudy Ina m, dark grayish Lrown (]OpR 4/?)
<br />rani vt; nn nlctale fine gra hula r. stnuture; soft, rcr}'
<br />friable{ 35 l~rn'rnt cnbblrs and ?u pe rr.,•nt gravel;
<br />slightly ralra, rnus; modrratcly al k:di ne; diffuse
<br />smooth l~,~nnda ry.
<br />C-]0 to GO ioeh rs; gr:a}' (]0}'R 5/]) ,'cry gravelly sand,
<br />dark gray (lU}'R 4/1) moist; single grai acct;
<br />loose; ,0 per cent grazer Sad mhhlcs; roles rcous;
<br />mr•.Irratcly- alkaline.
<br />The A ]r a~i znn is 4 Ln ]0 inches thick. Il is r'ra,~rll} sandy
<br />learn In some fields .+,itrre most of the rohblcs bare been
<br />rnno,~rd Ly ro,~k picking maehi Hen-. •fhe cord c•nt of Gravel
<br />and robtd rs in Ihr• ,4 Lu ri er•n ra ng~~s from '.5 to '0 prrrent.
<br />The C hnri'r.r•n is ,cry gran elly sand or tery rubbly sand.
<br />nn--Honor rrrLbly ~nodp Irrn m. This nearly level
<br />soil otcullics la]';=C alias at tl+e upper end of alluvial
<br />fans in the north-cc•niral part of the Area. Slopes are
<br />0 to 1 Irerr eat. About ?0 Irorcent of this unit is included
<br />:n'r•s of Quanlrm ;;ravcll~' s:uul~• loam and 10 percent
<br />:r r„as of i\ rnd.r ;, r:n~oll~~ sandy Inxm.
<br />T;unr,if is ~low.'1'hc erasion lrr,:;u d is slight.
<br />If ,ruler is avail;rltlr•, most of the acreage is used for
<br />irrigalorl potaLrres, small grain, alfalL•+, and crgc•lahlcs.
<br />Some ;urns ;u'c used far range. Capability unit 1\'s-1
<br />i rri;;alt•d, vlls-7 nnnirrigalyd; A1nunL•rin Outtrxsh
<br />1°f llgl' SItC.
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