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<br />h.ArII1~~ I - 5
<br />SOIL SIIRVEY
<br />Tltis soil Itas to be drained and leached of salts before
<br />it can Lie farmed satisfactorily. Most of rho acreago is
<br />irt•igstcd. Lt nndrnined, uncleared areas rho vegetation
<br />consists of saltgrass and t.ainarislc. 'f'heso areas are used
<br />as I,:raurr,. (Ca.pability unit lll0•-2, irrigated; capability
<br />unit Cl+c-1, nonirrigated; Salt Dfeadow range site)
<br />Las clay loam, sand substratum, dark variant (0 to 1
<br />per,•cut. slopes) (tel.-'this soil occurs as irregularly shaped
<br />areas, ~cuerilly less than ~0 acres in size, along the
<br />:\rlca.usas L'it-er valley. It is only 20 to 40 inches deep
<br />mrr sand and gra+•cl. Iuchuled m mapping were small
<br />:u•eas ul' l.as cll~y loam, on slightly bigber patty of the
<br />landscape, anti areas of Las clay loam, dark variant, on
<br />sligbtl}• lower parts.
<br />'I'bis soil is somewhat tlill'icult to work. It is moderyto in
<br />natm:Il fert.ilit.}'. It has n modernte water-intako rate and
<br />n moderate water-holding capacity. Runoff is slow. The
<br />eI'r 1511111 I1;1 %:1 IYl IS Sllgllt.
<br />'I'bis Anil has to be drained :aid leached of salts before
<br />it ran Igo farmed satisfactorily. Dfost of the acreage is
<br />irritated. In nndrained, uncleared areas the t•egetation
<br />I:QIISI SIy Itf Saltgl'a55 allfl tantan5lC. These areas aCC ilSed
<br />its past.nre. {Capability unit IIIrv-2, irrigated)
<br />Las Animas SeI•ies
<br />1'ho Las .\nunas series consists of nearly level, limy,
<br />sh~on~l ~ sa.liue. soils th:•tt formed in stratified loamy and
<br />smuly alluciuni. 't'hese soils arc in lo+v are.•ts along the
<br />:\rlcansas rivet.
<br />In a typical profile t.lic surface layer is limy loam or
<br />Bauch- lrun about 10 inchesthick. It is grayish brown and
<br />bas a fro• vrllo+cish-brown mottles in the lower part.. The
<br />subsoil is ]name sand stratified with lenses of sandy loam
<br />a.nd snu.d.'I'6is•la.cer islight brownish gray and has many,
<br />distinct, lucdinnt-,ray and yellowish-brown mottles.
<br />i.as _\nimns soils are poorly ch•ninal. Runoff is slow,
<br />nail perntcahilif} is utnrlel;tto to rapid. Flooding is a hrtz-
<br />ard. '1'hc +ca.ft`r lablc fluctnatcs. It is always vvttlun 30
<br />incbes of fhe. surface and is sometimrls at the surface.
<br />Na I alai fert.il itc is low to moderttc. There is no significant
<br />ha%at•d of erosion.
<br />'I'brsr. soils art too wet to he suitable for cultivated crops.
<br />\f ost. M'. Lhr, a r t•ca ge i s uscrl as pasture.
<br />'I'vpiral profile of n Las Animas loam (1,500 feet west
<br />and• L(150 intl. snnt.h of NI:. corner sec. 3, T. 23 5., R.
<br />All-0 l0 5 inches, Frayish-brown (2.LT 5/2) loom, very dark
<br />grayish brown (2.5Y 3/21 wheu moist; weak, floe,
<br />platy structnro; hard when dry, friable when moist;
<br />strongly cnlca rcous; clear, smooth boundary; few,
<br />faint, indistinct mottles.
<br />Al:-:, to ]0 inrbes, Ilght brownish-gray (lOTR G/2) loam,
<br />dart: Ft:Iyish brown (lOTR 9/2) when moist; massive;
<br />hard when dry, triable wben moist; strongly cnlcate-
<br />ous; brown rust spots; visible salt spots; clear, smooth
<br />bonndarp.
<br />R^_]g-10 l0 37 Inches, light brown[ah-Fray (lOTR 6/2) loamy
<br />sand, dark Frayish brown (lOFR 4/2) when moist;
<br />single Frain ; rery strongly calcareous ;common, coarse,
<br />ycllo+vislt-brown and gray mottles; visible salt spots;
<br />clca r. smooth bounds ry.
<br />B2°g--37 to GO inches, light brownish-gray (IOTR G/2) coarse
<br />Innmp sand, dark grayish brown (lOTR 4/2) wheu
<br />moist: single grain; strongly calcareous; mans, coarse,
<br />yMlo+rish and gay mottles.
<br />The Al horizon ranges from 4 to 10 Inches lu thickness
<br />from clay loam to loamy sand 1n teztnre. The B horizon rat
<br />Lrom Andy loam to loamy sand. The depth to sand and gr:
<br />ranges from 30 to GO incites.
<br />Laa Animas Bolls are coarser tcctarcd tlmn I,as soils
<br />Clenberg soils.
<br />Las Animas soils (0 to 1 percent slopes) flml.-Tl.
<br />soils occur as irregularly shaped are;ts 10 to 50 acres
<br />size, mainly along $oise Creel: and the Arkansas Ri+
<br />The surface layer ranges from clay loam to loamy Ban
<br />tezturo and is 4 to 10 mchcs thick. Included in mapp
<br />were spots of Banlcard soils, which occur on slightly ral
<br />parts of the ]mtdscnpe; snn+ll areas of Las clay loam, I
<br />1 percent slopes, which generally occur farther back fl
<br />the river; and areas of Glenberg soils.
<br />These soils arc poorly chaiucd and are subject to IL
<br />ing. RunofF is slow, and permeability is moderate to ra
<br />Natural fertility is low to modcrntc. There is no sic tiff(
<br />hazard of erosion.
<br />T11C5f! 50115 :W'C t00 Wet t0 LC IISC(I fOC fal'lll r.L'Ops. '1
<br />atro difficult to rlt:tiin becanso they lack mlLlels. If drail
<br />they C1I1 be nserl for salt tolerant crops like barley
<br />sugar beets. Only a small acreage, is farmed. Dfost of
<br />acreage is nal.ivc tango. Tbc vegetation consists of
<br />grass, tamarisk, and cottonwood. (Capability unit IV+
<br />irngated; capability unit ~rIw-1, nomrrtgnted;
<br />Dleadou- tango site)
<br />Limon Series
<br />The Limon series consists rat nearly level, drep, sn
<br />soils that formed in limy material derived mainly fl
<br />shale. These soils are on old tert•aceS and flood plain
<br />the northwestern and centrnl parts of tho county.
<br />In a typical profile the surfaco layer is grayish-br,
<br />and brown clay abort 4 inches thick. Below this, t.
<br />depth of about 36 inches, is clay or silty clay. The uPl
<br />most 10 inches has weak blocky stmctnro. The rest is n
<br />sive. Tho underlying material is light olive-brown
<br />]irht yellowish-brown, massire, limy clay loam.
<br />1',ecopt for a few wet spots in rho 7owcr part of
<br />stibstrntum, these soils anal well drained. Internal clr
<br />age is slow, petmeability is slow, and the water-hob.
<br />capacity is high. Natural fertility is high. The era
<br />hazard is moclcrats to savers. The taspouse to man
<br />meat is poor. ,
<br />The entire acreage is rased as range.
<br />Typical profile of Limon rlay (0.45 mile north and
<br />mile cast of S1V. corner sec. i, T. 21 S., R. 52 R'.)
<br />AI--0 to 2 Inches, grayish-brown (2.5Y 5/2) clnS, dark Fr:
<br />brown (2.5Y 4/2) when moist; weak, medium,
<br />a[ructore to weak, 8ne, grnnnlar; hard when
<br />triable when moist; noncalcnreous; clear, sn
<br />boundary.
<br />AC-2 to 4 inches, brown (lOTR 5/3) clay, dark brown
<br />4/3) when moist; weak, Bne, subangulat blocky s
<br />lure to weak, •8ne, granular; hard when city,
<br />friable when moist; rnlcnreous; clear, sIl
<br />boundary.
<br />Cl-•} to 11 inches, grayish-brown (2.5Y 5/2) clay, clad:
<br />Ich brown (2.5Y 4/2) when moist; wrl k, r,
<br />prismntlc structure to wen k, medium and Onr.
<br />angular blocky; very hard cvhrn tiny, friable
<br />moist; strongly cnlca rcous; sllcl:ensidca on ped
<br />faros; cleat, smooth bmmdnry.
<br />C2cacs-11 to 14 inches, grayish-brown ('?.GY 'u/^_) silty
<br />dark grayish brown (2.5Y 4/2) when moist: ~
<br />mediom nod Bne, subangular brocky structure;
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