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<br />Dunul Series 1
<br />Norte Series
<br /> The Nm'te series consists n murleratek +yell drained
<br />The Dunul series consists of excessively drained
<br />' sails 24 to 40 inches deep aye gravel and sand
<br />These
<br />soils 6
<br />to 10 inches deep over gravel, cobbles, and sand. .
<br />soils formed in gravelly allttvit m nn broad alhrvial fans
<br />
<br />These soils formed in cobbly alluvium on alluvial fans' .
<br />Slopes are 0 to 1 percent
<br />rl cation is 7
<br />500 Lo 8
<br />;00
<br />Slopes are 0 to 1 percent. I/levation is 7,600 Lo 7,900 .
<br />,
<br />.
<br />feet. Natural vegetation is ominantl
<br />blue ram;t
<br />
<br />feet. Natural vegetation is dominantly blue grama'
<br />' y
<br />,
<br />Indian ricegrass
<br />vui lo+e rabb'tbrush
<br />The average an-
<br />he
<br />Indian ricegrass, snake+ceed, and loin rabbitbruslt' 1 ,
<br />.
<br />Waal precipitation is about 7 aches
<br />the mean annual
<br />average annual precipitation is about 7 inches, the
<br />° ,
<br />air temperature is about ~11°
<br />;uul the frost-free sea-
<br />F, and the
<br />mean annual air temperature is about •11 ,
<br />son is 90 to 100 days
<br />
<br />fl'ost-free season is 90 to 105 days. .
<br />I
<br />•
<br />i
<br />-
<br />
<br />In a representative profile the surface layer is dark n + t
<br />epresentat
<br />ce profile the surface 1ay
<br />cr and
<br />
<br />grayish brot+•n cobble sandy loam about 10 inches thick. underlying material to a dept oC an inches are dark
<br />
<br />The underlying material is d:u'k gray eery gravelly grayish bro++n gravelly sxnrly Dora. Rclmv this is eery
<br />
<br />sand that extends tct a depth of 60 inches or more. gravelly loamy scud that es end. to a depth of GO
<br />
<br />and the available n•ater
<br />Permeability is rapid inches or more.
<br />,
<br />capacity is lo+c. Reaction is moderate)}' alkaline. The Permeability is moderately ;rpm, and the available
<br />
<br />effective rooting depth is G to 1? inches +vater capacity is lo.v ur mnri rate. Reaction is mod-
<br />.
<br />These soils are used for irrigated crops and for erately alkaline. The effective t noting depth is 21 to 40
<br /> inches. The seasonal high n•at r table is at a depth of
<br />ra°ge' 3G to GO inches
<br />
<br />Y.epresentative profile of Dunul cnbbly sandy loam, .
<br />These soils are used for i rigated crops and for
<br />1,500 feet east and 300 feet north of the soulht+•est
<br />
<br />corner sec. 18, T. 40 N., P. 8 E. range
<br />Pepresentatiye profile of No to gravelly sandy loam,
<br />Ap-o to to inches; grayish brown (tOYR .5/?) cobhty
<br />' :100 feet e;tst ;nui 2,:1L(I feel nrlh of the snuth+yest
<br />R d/'?)
<br />sandy loam, dark grayish brown (101 CornCr scC'. 1K
<br />"I'. ~I(1 N
<br />R. R I':
<br />
<br />moist; modrra tc fine granular structu rr; sn Ct, very ,
<br />.,
<br />.
<br />friable; 3.l percent cobbles and 35 perrrnt gravel; Ap-0 In q inrhrs light Lrnwnisl gra }~ (IU1'R r,/•?) :; raeclly
<br />slightly calcareous; moderatCly alkaline; [li Ruse` sandy loam, dark gr, Gish hru+cn (UIl'R A('?)
<br />smooth boundary. nmLet; nm~Lv'atr lim• Fro nular <h~urtu rr: soft.
<br />C-]0 to GO inrhrs; gray (101'R 5/I) very gracrlly sand, veer frigLlr; I5 p~•rrrn );ravel; cn lc:n~rous; ntod-
<br />dark gray (101"R 4/1) moist; single graiurrl; rr;itrl}' alkaline; rle:n' . mm~lh Lou uda ry.
<br />loose; 70 percent gravel and cobhles: calcareous; AC-•1 l0 1'? inches; light Lr knish gray (]01'R f/2)
<br />moderately alkaline. gravelly sandy )Wool, d rk !; ravish hrown (l01'P.
<br />The A hm~i zoo is A to 10 inches thick. It is Fra telly sandy ~/''-) moist; wrnk media n suhangular blocky strut
<br />re most of [hc cobbles have Leon'
<br />loam in some fields whr tom; slightly h:u'd, err}' fri:,blr; ''?0 promo[ gra eel;
<br />.
<br />removed by rockpicking machinery. The content of gravel ca lc:, rrnus; mndrrntrlc alkaline; gradual wavy
<br />and rubbles in the .4 horb.mi ranges from 35 to 7P Pc rcr nt. hmnvin ry.
<br />CI
<br />12 t
<br />"4
<br />The C horizon is eel}~ gravelly sand or ven~ rubbly sand. o
<br />-
<br />0 inrhrs light Lr +cuish gray (IUYR f/?)
<br /> gravr•Ily sandy I~~a m, d rk gra}'i.ch Len u'n (1111'6
<br />Dn-Uunul cuLbh~ eanrh• Inmu. This nearly level •t/" t moist; m:ssi+',:: , ighdp h:,nl, +,~~~>' n~iaLle:
<br />soil occupies lame areas at the upper end of aihlyial 30 pererm gravel; sn„e disrnntlimnus arrunw
<br />
<br />fans in the north-cenUal part of the Area. Slopes are lotions of nisi Llr srrnn Ian' carbnna lr. as rnncro-
<br />tines :u,d rna [logs nn race) frogmen ts; calcare-
<br />0 to 1 percent. AI>out _0 percent of this unit is included ous; moderately alkalis gradual w:ny boundary,
<br />areas of Quanum gravelly sand~~ loam and l0 percent
<br />areas of Norte gravelly sandy loam. itC?-3o to co inches; very g welly loamy sand; gravel
<br />Runoff is slow. The erosion hazard is slight. and sand give a grayi h cast on exposure; 50 to
<br />SO percent gravel and co tiles.
<br />If [water is available, most of the acreage is user) Cm' The A horizon is gravelly s ndy loran or sandy loam.
<br />ifrigated potatoes, small grain, alfalfa, ,utrl vegetables' The content of gravel ranges f m 5 to 3.5 percent in the
<br />Solne areas afC used Car range. Capabilih unit I\'s-1 .4 and C horizons and frmn 1. to 35 perrrnt in the L1
<br />In'igated, V1Is-! nonirrigated; n'IOtlntailt ill h+'ash horizon. Depth to the IIC horiz n is 24 to AO inches. This
<br />
<br />range Slte. horizon is vet +avelty loam and or sand that is Si0 to
<br />~
<br />y
<br /> So percent gra
<br />e and cobhles.
<br />Nr-Norte-Drawl cumplc~. his nearly level ntap-
<br />ping unit occupies the upper ear of broad alluvial fans,
<br />mainly in the north-central part f the Area. Slupes;u'e
<br />0 to 1 percent. This unit is a out 40 percent Norte
<br />gravelly sandy loam and 40 pert nt Dunui cnbbh" sandy
<br />loam. In unleveled areas there . re many small stvales
<br />and ridges. The ridges are 1 to feet higher than the
<br />su•ales. Norte gravelly sandy 1 am and Dunul cobble
<br />sand,v loam have the profiles desc ibed ns represcntatice
<br />of their respective series. About'~0 percent of this unit
<br />is included areas oC Quamon gr, welly sandy loam.
<br />Runoff is slotr. The soil blo+ ing hazard is lo+v to
<br />moderate.
<br />Tltis mapping unit is used f r irrigated potatoes.
<br />small grain, alfalfa. and vege aUles and for range.
<br />Capability mtiL IVs-1 irrigated Vlls-7 nonirrigated;
<br />Dgottntaili Outu•ash range site.
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