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<br />lU ~ 80n. BURVEY
<br />'1'hrse :oils arc used for pasture, hmucsites, and indus-
<br />l~t•ial si;r:. -
<br />Rrprr>rnlalica ),ro(ilr of Lmtgutont. clay, 0 to 3 pcrcont
<br />slopes, lo,•nlrli JOU feel. nnrl.h and Illll feet west of tho south
<br />quo rl r r u f srr. Ci,' 1'. ~ N,, li. i 111V
<br />ati-0 Io .: lathes, li,:ht hrmcninlrFrny ('_:. ]' f,%_) clop, gray-
<br />I.h br, ncn (2.L1' 4/2) when moist: vvcak, metlinut,
<br />suha n~nl:u• block)- s[ruchlrc; hard, li nu; ctdcn rcous;
<br />nn~auplp alknlin¢; efts r. smooth bmimlary.
<br />A1P.-5 to ^_1 lushes, light olive-brown (2.5Y 5/3) cloy', olive
<br />brown (..SY 4/3) when moist; weak, co^rse, sub»»-
<br />gular bloel:)- structure; extremely hard, very firm;
<br />C:dcu'enns; strongly' all:n line; di0'uso bountla ry.
<br />(11CSCn-2i In al. inches, light. olive-6rna•n (2.SY 5/3) cloy
<br />vvilh w:wp, medium, disliuct ycl lon•Ish-brown (lOYli
<br />;i/~1) wattles, dark greyish brmvn (2.5Y.4/3) when
<br />nuiist; wassive; exl.mnmly ha nl, very fine; calcare-
<br />mw; emumon, doe to malium clusters of gypsum
<br />cry.~tah and few, fine to medium, hard lime conere-
<br />tiunc; sf rnnglY niknlinc; 6rndual, diffuse boundary.
<br />C•]cscng--al to Go lushes, pale-olive (5Y. G/3) clap with com-
<br />1»lnt. OIPIII II W, dlFtl ]let olive' (5Y 4/3) mottles, olive
<br />(aY .i/;t) vchcu moist; massive; extremely hard, very
<br />lino; eaten remis; common, fine to medium clusters
<br />eC F)'psnm cq~sta is mod few to couuumt, flue nod mr
<br />dime, ha nl lime coucretious; moderately nll:nline.
<br />The .\1 horizml rangrg from 12 to 24 lushes in thickness and
<br />favw clap lo:un ro clay or silty clay In testate. The C horizon
<br />rn nFCS Crow heavy clay loam to cloy in texture. In most plnees
<br />shale is nt a depth of more than Go inches, but 1^ a few meets
<br />it is 6chcceu depths of 40 and GO inches.
<br />Loltgmont clay, 0 to 3 percent slopes floe].-This
<br />soil is in the eastern putt of the Area. A fete soil areas
<br />are somewhat concave. In most places this soil is in irregu-
<br />lar areas more than 40 acres in sire.
<br />Included with this soil in mapping is a Longmont-like
<br />soil that. bas shalt, at n depth of less than 40 inches. Also
<br />included arc small areas of Colby silty clay loam, wet,
<br />0 to a pcrcont slopes; and small areas of IIe1dt cloy, 0 to
<br />3 percent. slopes. 't'hese included soils make up about 10
<br />percent of each m:y)ped area.
<br />In most plnees runoff is slow, but, some cmlcave areas
<br />arc prntclcil. The erosion hazard is slight. Drainage and
<br />remora] of sale and alkali are difficult because this soil is
<br />slotvl}- permeable.
<br />:\Imosr. al l of the acreage of this soil is in pasture, except
<br />fa• some arras that are urbanized- Efforts to establish
<br />better stands of grass d]ave been partly successful.
<br />(Capability unit VIIV-1, nonirrigated; tree suitability
<br />group G)
<br />Lo~•cland Series
<br />Tits Loveland series is made up of deep, somewhat
<br />poorly drained soils. These soils formed on terraces and
<br />bottom lands in loamy alluvium that overlies gravelly
<br />and sandy materials. Slopes ore 0 to 1 percent. Elevations
<br />arc 4,`.i0~ tr. 5.;500 feet. The native vegetation is mainly
<br />blucgr:•t.=s and blue grams. Annual precipitation is 12 to
<br />1S inches. ~le:m anneal air temperature is 48° to 52° F.,
<br />and the frn,r-free season is nlwut 140 to 155 days.
<br />In n rchrescntat.ive profile the surface layer is calcar-
<br />CQ115, d{II'k ~rayisit-brown light clay loam about 20 inches
<br />[Lick. It is motR.lyd in the lower part. The underlying
<br />material, about f0 inches thick, is strongly calcareous,
<br />grayisb-brown light clay loom that is mottled. Undcrly-
<br />n~g this to a depth of 60 inches or more is mottled, light
<br />broo•nish-gray grnvelly sand. In the surface )aycr and
<br />uuderlyiue m:uterial soil reaction is moderately ullr:dinc,
<br />and in the substratum il. is mildly allc+linc. In moll, areas,
<br />}•psum crystals and soft tin+c segrcgntimts ate present in
<br />some layers.
<br />Lovcl:uui soils have moderate pcrmcabilit;y. Available
<br />water capacity for tho profilo is nmdcratc to high, dcprnd-
<br />ing upmt the depth to very gravelly sand. Roots can pene-
<br />trate to a depth of GO inches or morn, and the seasonal
<br />high water taUlc is at a depth of 2 to 4 feet.
<br />'These soils are used for. ]astyre and crops. In some areas
<br />they are a source of grave foi• construction.
<br />Representative profile of Loveland clay loam, 0 to 1 per-
<br />cent slopes, in an urns of Loveland soils located i 0 feet east
<br />and 2,310 feet south of the northwest corner of sec. I1, T.
<br />2 N., R. GO ~V.
<br />All-0 to 11 inches, dark grayish-brown (10YI2 4/2) light
<br />cloy Ionm, very dnrk brown (10]'R 2/2) when moist;
<br />moderate, fine and medium, granular structure; soft,
<br />very friable; calcareous; moderately niknlinc; steer,
<br />smooth bou»dnry.
<br />A12-11 to 20 inches, dnrk grayish-brown (lOYR 4/2) light
<br />clay loam with common, medium, distiuct yellovv~sh-
<br />6rown,(lOYR 5/4) mottles, very dark brown (lO1R
<br />. 2/2) whoa moist; weak, medium, subnngulnr blocky
<br />structure; hard, firm; calcareous; malerntely alkn-
<br />.line; abrupt, smooth boundary.
<br />Clesea=20 to 30 inches, 6rnyish-brown (lOYR 5/2) lint clay
<br />loam with common, medium, distinct, yellowish-brovrn
<br />(lOYR 6/4 uod 6/0) mottles, dark Fr»yish brown
<br />(lOYR 4/2) when moist; massive; herd, frialde;
<br />strongly calcareous; fe+r to common, fine ro mediwn
<br />clusters of gypsum crystals, soot common, medium
<br />and coarse, soft white lime segregations; moderately
<br />alkaline; clear, vvnvy boundary.
<br />IIC2-30 to GO tachCS, light brownish-gray (lOTR G/2) very
<br />grnvelly scud with tunny, medium, distinct, strnng-
<br />brown (7.EYR 5/0) mottles, Grayish broom (lOYR
<br />5/2) when moist; single grained: loose when dry Anil
<br />moist; mildly alknllne.
<br />The A horizon ranges from 18 to 23 inches In thickuess and
<br />from snody clay loom to clay loom in texture. Thr C horizon
<br />ranges from loam to cloy loam or sandy clay Ionm in texture.
<br />Depth to underlying sand or gravel ranges from 20 to 40
<br />inches.
<br />Loveland soils (0 to 1 pcrcettt slopes) (tvl.-These soils
<br />arc on strewn terraces and bottmns in the eastern part of
<br />the Area. In most places they are in irregular areas more
<br />thmt 20 acres in size.
<br />The pfofile of these sails is similar to the one described ets
<br />representative for the series, but the tetiture of the surface
<br />toyer ranges from sandy clay loam to clay loam.
<br />Included with these soils in mapping is a Loveland-like
<br />soil that has a lighter colored surface layer. Also included
<br />are gravel bars less than 1 acre in size, small areas of
<br />McClave clay loam, and areas of Nitvot soils. These in-
<br />cluded soils and gravel bars make up about 15 percent of
<br />each ma ed area.
<br />Runoff is slow on these soils. The erosion hazard is
<br />slight.
<br />All of the acreage of these soils is used for irrigated
<br />crops or pasture. (Capability unit IIIw-1, irrigated; tree
<br />suitability group 5)
<br />Made Land
<br />Made lend (Mal is on nearly level areas along St. Vrain
<br />Creek near the eastern edge of the Area. Tl]is tend is
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