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<br />1Vur1r. Srricy
<br />The N,u to series consists of nlnrlernlely well drained
<br />soils 24 to 40 inches rlcep Deer gr:nel ;uirl .cold. These
<br />soils fm'med in gr:n'ully alluvium on Ln„td allL;vial fans.
<br />Slopes are 0 to 1 percent. Ele+;ttion is 7,Fi0(1 to 8,300
<br />feet. Natural veget;ttinn is domin;uilly blue gr;nna,
<br />Indian ricegrass, and law rabbitbrush. The m'erage an-
<br />nual precipitation is ahnnt 7 inches, the mean vumal
<br />air temperature is ;Ibnut 41° F, curl (he frost-frc'c ua-
<br />son is `10 to 100 d:rvs.
<br />]n a represent;ltice fn'ofile the surface L•ryer and
<br />underlcing material to a <lehth of 30 inches are dark
<br />grayisl} bro+en gr:(celh' s;uuiy loam. IIeler•.e Lhis is vets
<br />~ra~elly }Damp sand that extends to a depth of (i0
<br />inches or more.
<br />Pernuability is moderately rapid, and the available
<br />water capacity is low or moderate. Reactimt is mod-
<br />erately alkaline. The effective roofing depth is 24 to 90
<br />inches. The nasmt.nl high water table is at a depth of
<br />36 to fi0 inches.
<br />These soils ;ue used for irrigated crops :old for
<br />range.
<br />PepresenL'llive pru0lc of Norte gr;lecll.; s;tnd}' lo;un,
<br />300 feet cast ;Ind '2,510 feet north of the southwest
<br />cm'ner sec. 18, T. 10 N.. E. 8 E.
<br />.4p-0 to 4 inches light Lrmcnish gray (](1}'R fi/2) gravelly
<br />snudy loam, Dark gi:~yi<h Lio+cn (]Ill R 9/2)
<br />nisi st; mnd~~rate Gnc. Fi:w nl:n' sl rust urn; soft,
<br />vo rp fri:d~br ]5 l~rn rnl ~ iacCl; oalr:n'rous; nu,d-
<br />~a:rtrly alk:dine; clo:u' :nn~~nlh Lau nd:u~}'.
<br />AC-- 4 l0 1°_ in, h~~s; light hr~-.~nish hrap (]0}'R GJz)
<br />gra telly <andr In:nn, d:~rk gra etch hrnw~n (]01'Y.
<br />4(2) nwist; +,rak n,rdimn suha ngular Llnckp stnrc-
<br />lure; slightly ln, rd, vrry fri:~hle; ?0 pcrcrnt grm'el;
<br />ra Ira rcnus; moderately al6aline; gradual n-aoy
<br />Lou nda rv.
<br />C1-12 to 30 inches light Ln:e: nish gray (]0)'R G/2)
<br />gra telly sandy loam, dark grayish Irrn,en (]ll )'R
<br />4/'_) mots]; mas=ivc; slif•,htly hard, va'p friaLle;
<br />. 30 perernt gra vrl; scone Ali=co~~t i~nu•us ncenmu-
<br />lalinns of ciaildr srrnnda rp ca rhaualc as concre-
<br />tions and coatings on gra •: rl fr:gnir•n Ls; calrarc-
<br />nus; mud^rn Lel}' alLali nc•; gradual ,, :,vy Lnundary.
<br />I1C2-30 to CU inches; very gr: r. rllp lo:ur,y sand; gravel
<br />anti sand li+r. a grayish east nn e:•. p<snre; 50 to
<br />SO purrrnt gracrl and cohhlrs.
<br />The A horizon is grnerllc s;,ndc Icam nr s:u~dp Ina m.
<br />Thr content of gra+~el rouges from 5 to 45 prrrent in the
<br />.4 and C horizon= and fn+m 15 to 35 perry nt in the Cl
<br />hurt zoo. Depth Lo the IIC horizon is 24 l0 4p inches. This
<br />horizon is eery grace4ly h~:+my sand or sm,d that is 50 to
<br />SO percent gre,~rl and coLhles.
<br />1\o-\urlc ~rurrll} ~:nulr lo;~m. 'fhls neal'ly level
<br />soil occupies the lo+}- end of t;coarl alluvial fans, ntainl}'
<br />in the northeastern part of the .Area. Slopes are 0 to
<br />1 percent. The profile of this soil is the one described
<br />as represenlnlive of the sorics. 'fhe +valer table is cum-
<br />monlc at a depth of 3f, to f0 inches and is I~ighest in
<br />summer. ]t is manipulated be a s>•stem nC dr:,ins and
<br />checks..4bmrt 25 percent of this unit is inc9ndcd areas
<br />ot,Quamon gra+-elly sandy loam, 10 percent areas of
<br />Dtfnul cobbly sandy loam, and 10 percent San Arcacio
<br />sands loam.
<br />F.nnnff is slo+v. The soil bloc+ing hazard is moderate.
<br />This soil is used most]}- for irrigated crops, ehie0y
<br />potatoes, Small grain, alfalfa, and ccgr•iables :u'c also
<br />1,rro+en. Some small areas are used for range. Capability
<br />unit Ills-2 irrigated, Vlls-7 nonirrigated; Mountain
<br />Outn•ash range site.
<br />
<br />Nr-.'~nrte~hunnl rnmplrc. 'Phis nclrl}• level mly]-
<br />ping uuiL occupies the upper cud of broad ;Illueial fans,
<br />mainly in the north-renf.r:Ll part of t.hc Area. Slopes;n-e
<br />0 to ] l,ercent. 'Phis unit is about 90 percent Norte
<br />gr:n'elh• s;gldy ]n;un :utd •1U percent Dunul cobbly s;mdc
<br />loam. In unleveled areas there :u•e mama small s+e:des
<br />and ridges. 'fhe ridges are 1 to 2 feet higher than the
<br />s++:des. Norte gr;n'elly sand}- ln;un and Dunul cobbly
<br />sandy lo:nn knee the profiles described as represrntative
<br />of their respective series. About 20 percent of this unit
<br />is included areas of Quanurn gravel]}• sandy loam.
<br />Punolf is slow. The soil blowing hazard is lo}r to
<br />moderate.
<br />This mnh~ping unit is user] for irrigated potatoes,
<br />small train, :df:dfa, and ceget;Lbles and for range.
<br />f'ap;ll,ility unit 1Vs-] irrigated, Vlls-7 nmlirrigated;
<br />Nuuntain Oat++ash rouge site.
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