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<br />EXHIBIT I - 4 BENT COIINTY, COLORADO
<br />Glenberg sandy loam, 0 to I percent slopes (GbAI•-
<br />Thissoil occul.s as irregularly shaped areus,l0 to 100 acres
<br />in size, along tiro Arl:ansns Rtvor and some of the larger
<br />streams. It. has t,Lo profile described as typical for the
<br />series. Saud and ~~r:trcl ale geuer•ally at a depth betwcen
<br />40 and GO inches. ~itcluded in mapping were spots of Bank-
<br />atd soils, on slightl}• lower parts of the landscape; a few
<br />spots of Las .4nunas SOUS, in depressed areas; and small
<br />arras of Las cl ay loran, 0 to 11lcrcent slopes.
<br />This soil is easy to tt•orl:. It is particularlyy well suite(]
<br />to trgetaLlc crops. It. tales in water re:rclily and has a
<br />nnnlurnle w:nrt•-holding r.;ynt(:ity. RnnolF is slmv. The.
<br />erosion hazard is slight.
<br />Almost all of the acreage is irrigated. On mtcleared
<br />seers the cegchtt.ion consists of tamarisk, cottonwood, vvil-
<br />Into, and bnleh. 1'hesc areas are used ford azmg. (Capa-
<br />bility unit Its-?, irrigated; capability uutt VIw-2, non-
<br />irrignted; Sauly Bottom rand t:•rnge site)
<br />Glenberg sandy loam, 1 to ~ percent slopes IGbBI•-
<br />'1'6is soil occurs as irre~nllarly shaped areas, generally less
<br />khen ..0 acres in size, slung the Arl:ausas River and some o£
<br />the u(har I:u~_m• draiuageway~s. The snrfaco layer is shunt
<br />:. iuciut f hirl:. (lea rnl and sand me at, a dcpt.h bet,tvcrn 0
<br />and C~0 inches. Ltclacled in mapping were spots of rlnnl:ard
<br />suits, on lower parts of tLc Lanlscapc; a few spots of Las
<br />.\111II1a5 sOIIS, iu aligllt.l}' de pl'CSPCd a~l'Cas; and small areas
<br />of Glrnbcl~q sandy loam, 0 to 1 percent slopes.
<br />'l'ilts soil is case to ccm•k. It takes in water rca(lil}• and
<br />Las a nutdrralc water-holding capacity. Runoll is slow to
<br />nmdiuna.'1'hr. m•osiun Lazar(] isntodcra.tc.
<br />abort Lnlf the acreage. is ircigate(I. On the rest, the
<br />ret'ctatirnt consists of tamarisk, cottonwood, and willow.
<br />']'Iris acrcago is used for grazing. (Capabilityy unit IIIo-2,
<br />irrigated; capability unit VIw-2, nonirrigated; Sandy
<br />1Snttrnn Land rnngesitc)
<br />Glenberg sandy loom, gravel substratum, 0 to 1 per-
<br />cent slopes iGeA).-'CLis soil occurs along the Arkansas
<br />Hicrr :uul some of the olhm• large sh•c:un bott.mns, gen-
<br />nrally tvitLin larger areas of Glenberg sau(ly loam, 0 to
<br />1 percent, slo)res. ]lost areas aro 6 to 10 acres in size. A few
<br />arc lar~cr. 'rlre prufi]o of this soil is similar to that de-
<br />w•.ribed ns t.ypicnl for the series, but gravel and sand gen-
<br />crnlly arr. nf. a depth bel.u'ccn 20;uu1 :10 inches. Inclu(ed
<br />iu mapping v:rre a few spots of Glenberg sandy loam, 1 to
<br />a percent. slopes, anti a few spots of Banl:ar(1 soils, which
<br />nrr.nr rat sligLtly Imect• parts of tLr. landscape.
<br />This soil is cosy to work. IC is use(1 for most crops grown
<br />in tLc ;uea. 1Secausc of IIF I110dCCRtCly COaI'sC teXtilre. ]t is
<br />well soiled ir. fhr. t't~ecfaLle crops that require a lot of cul-
<br />tivnt.ion, II. I akrs in water rea(lily and Las a moderate to
<br />low water-Lcddin_ (•apacit.p. Runnlr is slow. The erosion
<br />hazar(1 is sli,~;Lt.. Natural fertility is low to moderate.
<br />DIost of rho acreage is irrigated. TLe vegetation in the
<br />fen- sma.l l un•lcared m•cas consists of tamarisk, cottonwood,
<br />and willme.']Chese areas arc used for grazing. (Capability
<br />unit Iirs-3, irrigatcrl: capability unit VIw-2, nonirri-
<br />galyd: S:uul}• Tlottom Land range site)
<br />15
<br />In a typical profile the surface layer is ]iglu brotvnish-
<br />gray loam about 4 inches thick. Below this, to a depth of
<br />about 21 inches, is pale-brown to light yellowish-brown
<br />loam. This layer has weak Lloct:y to prismatic stnrcture.
<br />The underlying material is pale-Drown loam and sandy
<br />loam. It contains fine gravel.
<br />Harrcy soils are naturally well drained. Internal (h•ain-
<br />age is medium, permeability is moderate, and the water-
<br />holdingcapacity is high. Natural fcrtilit.,y is high. Slopntfi
<br />areas are snsceptrble to water erosion. 'PLc response to
<br />m:utagcment is good.
<br />:\Il n{ I he ncrcagc is used as range.
<br />Typical profile of a Harvey loam (1,500 feet qst and GO
<br />feet south of N1V. cm•ner sec. ;,, T. 22 S., R. 401'V.)
<br />A-0 to S inches, light brownish-Fray (lOl'R G/2) loaw, Joel:
<br />grayish brown (lOYR 4%l) when moist; wen]:, One.
<br />platy structure to weal:, fine, Franalnr; slightly hnrd
<br />when dry, triable when woist; calenreous; abnlpt,
<br />smooth bmmda ry; some fine Fro vcl in prol))e and on
<br />surface,
<br />A(r3 to 0 incLrs. Imlc-brown (lOYR G/1) tonne, brown (IaYR
<br />:r/8) when woist; very wen l:, medium, subanFnlar
<br />blocky atrncturc; hard when dr}•, friable when moist;
<br />vrrv strongly crier reous; clra r, smooth Danula ry;
<br />wnur liar Fro vrl.
<br />Clca-0 to 'Lt inches, tight yellowis1rbron'n (lOYR G/d) loom,
<br />yellowish brown (lOYR v/4) when matst; very wen h,
<br />medium, prixmatic structure; hard when dry, friable
<br />when moist; very strongly cnlcnreons; strong ca
<br />horizon with lime concretions and mycrlln visible;
<br />smooth boundary; small amount of One grovel.
<br />C^_cn-^^-1 to 411 inches, very pule brown (lOYR 7/3) loam, brown
<br />(101'it 5/3) when moist; massive; hnrd u•ben dry,
<br />triable when moist; very strongly calenreous; many
<br />lime"slwts; clear, smooth bounrlnry; some fine gravel.
<br />Cgcacs-10 to GO Inches, pole-brown (lOYR G/3) snudy loam,
<br />brown (tOYR O/3) when moist; massive; hnrd when
<br />drS, friable when moist; very strongly calenreous;
<br />common scams of enleivm carbonate and gypsum.
<br />The A horizon ranges from 3 to G inches In thickness noel
<br />from loam to sandy loom In texture. The AC horizon ranges
<br />from v to 10 inches in thickness and from brown to pale brown
<br />in color. It is 1 to G percent gravel. The C horixou is more
<br />gravelly in nmae adjacent to Cnscajo soils.
<br />Ilart'ey soils arc more gravelly than Colley soils and ]rave
<br />more ISmc in the C horizon. They arc coarser texhucd and
<br />better drained than Lns soils. They are tens clayey bcloo• the
<br />surface layer than Stonchnm soils.
<br />Harvey loam, 1 to 9 percent slopes (HaCI.-This soil
<br />is mainly in the ninth-central part of rho county, just north
<br />of rho Arkansas River. The areas arc 50 acres or more in
<br />size and are generally longer than they are wide. Included
<br />in mapping wore spots of Colby soils, which are morn
<br />level, and small areas of Stoneham soils.
<br />This soil t<'tkes in water at n moderate rate and has a high
<br />water-holding capacity. Runoff is medium. If rite vege~a-
<br />tion h:~ been dopleted, the erosion hazard is moderntely
<br />severe. A few small fields that were once cultivated ate
<br />moderately eroded.
<br />All of ties acreage is used as rrnga Deferring and rotat-
<br />ing grazing and reseeding grass are important prac-
<br />tices. (Capabilutyunit VIe-1, nomrrigated; Loamy Plains
<br />range site)
<br />Harvey Series
<br />Tho fI;n•vnv series consists of deep, gently sloping, limy
<br />soils. '1'hesc ~:uils are on uplands na•kh of the Arkansas
<br />River.
<br />Kim Series
<br />The Iiim series consists of nearly level to strongly slop-
<br />ing, deep, limy soils. These soils occur as scattered areas
<br />throughontthesouthwcstcrn part oft.hocounty.
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