The URL can be used to link to this page

Browse Search

Home My WebLink About991426.tiff 57 ` 47 ,. - .gvp�':..._.,,.,.,i :.-.m. -.51 -�...- •- 9F'47 __ t`•*M67-r _...a I 73 ': :' ...;::::Ct'::::0 4 ey � f 37 y gi ' , ; Ortitak 0:40.0i1,40` WS, 4"4"' 7 1 56117.k teg 3 : b 'N ^rMYa h ,g>ns;^t ' 4 _ /I , t C rr;' + '�.T. /'/ y1 ' + �,�!,q�{qvy�r 48Y VJ c b X56 '.:;�I roe "t " .!aw73 «4 tt 7. "48 ;7i t f i 4 '' ' 41","."'1' ",". .a ‘",,:lee J 1 'e + • kn's v 72 � " u 76 .+ s r u •*. c 7 * w x y it � w - di`' '.'• Ir 67 q x 1fi r +t , �^ r t57�;i.t t311' 3•J3 . . 1..• + l• F<.. .. 51 j `�4 . '.96 ` ,�a•�> s ..,i, 7.. a i : °j Ix Ii Y: 4 1 l J ,,,,',k>,... c1,4 7 {.W�. C C Y t a 3 / Y• 1 S F.�r � }� }'., . :1"'''''s-MW A - ♦ am, n '5 ,at ;It x+ a I 38 4r4 r .f.: k 4. u"'3f. > �u" P, ;•;:i...•, V TAM dri A ,r r N,.rrt I "15t� '� E- rF: v% t'% 4 f W fi �' v ti r"N r� " '7r, f t e t.. t 1, '. lye. X '"'1NU• �'1 O.A;g".:' r -a 43+(17 r.,. n F,iv.I 24-e# t �9..r '. 'hd 70ay + � n. 3 7 u 44. 38 "'; r` :17 i1, 514,1 Ay,. w C; 7,3 t^ f s aW - c a PvA f 7•44,Sy _ 'a kl a 'rt`• c r n 37 r q r. 7("2.1 'S'a n t'p», ..•,Y 1 J.0 ��`o-vVA + 'r 72 +�r, x ={. r x yr + 7 11,51 „ r m� r 6;, k 1 q 51b� L --_.W.... Yp+ i ,ryq'. .'#r {. .. °.+h. . }: y 'Y Aay a. yn K t Jw4�W+4 AI to V }`�- q4 "y•4 ' r 70y r 3 T t + x `Lsix KxtL x - h Yy x I l;.A't ° s a 4 r ft x VV II .rk4y�d9 ,',Chi; S a f .,r i1, *s ' i'tin }7: ` �b y"}E .p'>r�1/}'h8 `® IVf� 4. =ah Alb '(tv ^P` "-II G. „y }- 5 ! .Iy�}, y, 9 r �rj t` '77,!;4'",'C-,;$410.1..., ! M1• ,✓a 9* '+#t F ,S"` -'Y�� } y J�4 " tf ' FFr t.�_ CT ti ,/: :%,,,,v, H.R r wl 2 r 73 $ '' 44 .1'' it_y x v ' } �'x ` 5.� $.+ r . y 1 ...} ',y,� • v t Vµ"1, V r '.F ''s "<",,,k1^. /,;•r 1`4 w' : r l,eSt ,c,_'; /+ x" t' 0 t+r F yrt 470 y�,.� '� �^! in, -�'• r ar wf ` J ct +'' *vkr ' .e t �Y 0 y s• k '1 � a 3f'e ., ' �� `Mq( b; P -...... r „•,J • 4' r 4 b a' ''' .y' ! ..,•.) y, ..f' ,4 £�• 11 "\ ki(.i4 a\ 41/4\ \ -11/4,..„4.:,:',..,. q} x f 1" 56 ,5 a :54.f + ' .r. 66JJftiihtt 5 •µ `,ty Ra a b '�„ 1 V, r y) +, �W.`'\. n • . .� a '"70 dl l a , •CI ✓ , , EXHIBIT 991426 xt: •, 32 SOIL SURVEY 'C are Rocky Mountain juniper, eastern redcedar, ponderosa ble years to 1,800 pounds in unfavorable years. As range pine, Siberian elm, Russian-olive, and hackberry. The condition deteriorates, the sand bluestem, sand reedgrass,pe t" shrubs best suited are skunkbush sumac, lilac, and Siberi- and and sand sage increase. Annual and grasses decrease and blue grama, sand oin ade pseed, ! an peshrub. Wildlife is an important secondary use of this soil. The the site as range condition becomes poorer. cropland areas provide favorable habitat for ring-necked Management of vegetation on this soil should be based pheasant and mourning dove. Many nongame species can on taking half and leaving half of the total annual produc- be attracted by establishing areas for nesting and escape tion. Seeding is desirable if the range is in poor condition. cover. For pheasants, undisturbed nesting cover is essen- Sand bluestem, sand reedgrass, switchgrass, wh grass are sideoats tial and should be included in plans for habitat develop- grams, 8 a, suita- ment, especially in areas of intensive agriculture. ble for seeding. The grass selected should meet the E ` Rapid expansion of Greeley and the surrounding area seasonal requirements of livestock. It can be seeded into ' has resulted in urbanization of much of this Olney soil. a clean, firm sorghum stubble, or it can be drilled into a This soil has good potential for urban and recreational firm prepared seedbed. Seeding early in spring has development. The only limiting feature is the moderately proven most successful. rapid permeability in the substratum, which causes a Windbreaks and environmental plantings are generally '(' hazard of ground water contamination from sewage suited to this soil. Soil blowing, the principal hazard in ' lagoons. Lawns, shrubs, and trees grow well. Capability establishing vabing only trees i thand shrubs, robes and by e leaving controlled strip ll- 4 c s I irrigated. IID Olney fine sandy loam, 1 to 3 percent slopes. vegetation between the rows. Supplemental irrigation This is a deep, well drained soil on plains at elevations of may be needed at the time of planting and during dry ,' 4,600 to 5,200 feet. It formed in mixed outwash deposits. periods. Trees that are best suited and have good survival Included in mapping are small areas of soils that have a are Rocky Mountain juniper, eastern redcedar, ponderosa i dark surface layer. Some small leveled areas are also in- pine, Siberian elm, Russian-olive, and hackberry. The , shrubs best suited are skunkbush sumac, lilac, and ibene eluded. elud {' Typically the surface layer of this Olney soil is grayish an peashrub. brown fine sandy loam about 10 inches thick. The subsoil Wildlife is an important secondary use of this soil. The is yellowish brown and very pale brown sandy clay loam cropland areas provide favorable habitat for ring-necked i 4! about 14 inches thick. The substratum to a depth of 60 pheasant and mourning dove. Many nongame species can inches is very pale brown, calcareous fine sandy loam. be attracted by establishing areas for nesting and escape Permeability and available water capacity are cover. For pheasants, undisturbed nesting cover is essen- , moderate. The effective rooting depth is 60 inches or tial and should be included in plans for habitat develop- t, more. Surface runoff is medium, and the erosion hazard is ment, especially in areas of intensive agriculture. Range- low. land wildlife, for example, the pronghorn antelope, can be , In irrigated areas this soil is suited to all crops com- attracted by developing livestock watering facilities, monly grown in the area, including corn, sugar beets, managing livestock grazing, and reseeding where needed. beans, alfalfa, small grain, potatoes, and onions. An exam- Rapid expansion of Greeley and the surrounding area 1.; pie of a suitable cropping system is 3 to 4 years of alfalfa has resulted in for urban urbanization of 1mchandre of creational y k followed by corn, corn for silage, sugar beets, small grain, This soil has good potential o or beans. Land leveling, ditch lining, and installing development. The only limiting feature is the moderately pipelines may be needed for proper water application. All rapid permeability in the substratum, which causes a' methods of irrigation are suitable, but furrow irrigation is hazard of ground water contamination from sewage the most common. Barnyard manure and commercial fer- lagoons.bcln s IIe Lawns, ir shb d us I and trees grownonirrigated Sandy well. Capability tilizer are needed for top yields. In nonirrigated areas this soil is suited to winter wheat, range site. barley, and sorghum. Most of the acreage is planted to 48—Olney fine sandy loam, 3 to 5 percent slopes t winter wheat. The predicted average yield is 28 bushels This is a deep, well drained soil on plains at elevations of per acre. The soil is summer followed in alternate years 4,600 to 5,200 feet. It formed in mixed outwash deposits to allow moisture accumulation. Generally precipitation is Included in ded ince layer mapping a are small are offsoils that that haveva e a too low for beneficial use of fertilizer. dark Stubble mulch farming, striperopping, and minimum til- sandstone and shale within a depth of 60 inches. lage are needed to control soil blowing and water erosion. Typically the surface layer of this Olney soil is grayish .' Terracing also may be needed to control water erosion. brown fine sandy clay loam about 8 inchesthick.fine he sub. The potential native vegetation on this range site is soil is yellowish brown and very palebrown ndy dominated by sand bluestem, sand reedgrass, and blue loam about 12 inches thick. The calcareous d loam. grams. Needleandthread, switchgrass, sideoats grama, 60 inches is very pale brown, and western s prominent. t Permeability frm ailable water capity are ranges from pounds per acre in favora- moderate. The effectaive rooting depth is 60 production inches a i 4 WELD t.,..JNTY, COLORADO, SOUTHERN PART 37 it• lI Lawns, shrubs, and trees grow well. Capability subclass periods. that are best suited and have good surma be neede at the time of plantingvival Hs irrigated. riods. Trees Ir�`Paoli loam, 1 to 3 percent slopes. This is a deep, are Rocky Mountain juniper, eastern redcedar, ponderosa well urained soil on terraces at elevations of 4,700 to 5,250 pine, Siberian elm, Russian-olive, and hackberry. The a i feet. It formed in alluvial deposits. Included in mapping shrubs best suited are skunkbush sumac, lilac, and Siberi- are small areas of soils that have a loamy sand surface an`piashrldlife b.is an important secondary use of this soil. The -layer. F' Typically the surface layer is grayish brown loam about cropland areas provide favorable habitat for ring-necked 1 22 inches thick. The underlying material to a depth of 60 pheasant and mourning dove. Many nongame species can inches is light brownish gray fine sandy loam. be attracted by establishing areas for nesting and escape t;; Permeability is moderate. Available water capacity is cover. For pheasants, undisturbed nesting cover is essen- yhigh. The effective rooting depth is 60 inches or more. tial and should be included in plans for habitat develop- ,Surface runoff is slow, and the erosion hazard is low. ment, especially in areas of intensive agriculture. 1 yy' This soil is used almost entirely for irrigated crops. It This soil has good potential for urban and recreational is suited to all crops commonly grown in the area, includ- development. The primary limiting feature is the rapid big corn, sugar beets, beans, alfalfa, small grain, potatoes, permeability in the substratum, which causes a hazard of t and onions. An example of a suitable cropping system is 3 ground water contamination from sewage lagoons. Road to 4 years of alfalfa followed by corn, corn for silage, designs should be modified to compensate for the j sugar beets, small grain, or beans. Land leveling, ditch moderate frost potential. Lawns, shrubs,and trees grow lining, and installing pipelines may be needed for proper well. Capability subclass IIe irrigated, IIIe nonirrigated; I ' water application. Ov ow range site. I All methods of irrigation are suitable, but furrow ir- Renohill clay loam, 0 to 3 percent slopes. This is 1, flrigation is the most common. Barnyard manure and com- a moderately deep, well drained soil on plains at eleva- • mercial fertilizer are needed for top yields. tions of 4,850 to 5,200 feet. It formed in residuum from i�isj This soil is well suited to winter wheat, barley, and shale. Included in mapping are small areas of soils that 141,. sorghum if it is summer fallowed in alternate years. have shale deeper than 40 inches. ish brown clay loam t $ Winter wheat is the principal crop. The predicted average Typically the surface layer is gray a yield is 33 bushels per acre. If the crop is winterkilled, about 9 inches thick. The subsoil is grayish brown and spring wheat can be seeded. Generally precipitation is too pale etu brown abrown clay toa4 i loam about 14 nches thick. a depts The ub- low•, r beneficial use of fertilizer. is pale e able mulch farming, striperopping, and minimum til- about 32 inches. 'lage are needed to control soil blowing and water erosion. Permeability is slow. Available water capacity is Terracing also may be needed to control water erosion. moderate. The effective rooting depth is 20 to 40 inches. •; The potential native vegetation is dominated by Surface runoff is medium, and the erosion hazard is ' western wheatgrass. Blue grama, switchgrass, sand moderate. • s reedgrass, big bluestem, slender wheatgrass, indiangrass, This soil is suited to most of the irrigated crops com- 1 and green needlegrass are also present. Potential produc- monly grown in the area, but the high clay content and 1 tion ranges from 3,000 pounds per acre in favorable years moderate depth of the soil is slightlycorn for sri silage,some crops. 3 to 2,000 pounds in unfavorable years. As range condition suitable cropp g system deteriorates, the tall grasses decrease, blue grams and to 4 years of alfalfa, and wheat. This soil is also well buffalograss increase, and forage production drops. Un- suited to irrigated pasture. desirable weeds and annuals invade and erosion can occur Furrows can be from contour usedditches suitable for close grown crops and a; i row crops. Flooding as range condition becomes poorer. bar- • Management of vegetation on this soil should be based pasture. Production can be maintained by on taking half and leaving half of the total annual produc- nyard manure and commercial fertilizer. Keeping tillage non. Seeding is desirable if the range is in poor condition: to a minimum and utilizing crop residue are important. I I Western ram; pub switchgrass, sand reedgrass, In nonirrigated areas this soil is suited to winter wheat, sideoats grams, pubescent wheatgrass, intermediate barley, and sorghum. Most of the acreage is planted to wheatgrass, and blue grama are suitable for seeding. The winter wheat. The predicted average yield is 25 bushels } grass selected should meet the seasonal requirements of per acre. The soil is summer fallowed in alternate years livestock. It can be seeded into a firm, prepared seedbed. to allow moisture accumulation. Generally precipitation is p A grass drill should be used. Seeding early in spring has too low for beneficil use Stubble mulch arming of fertropping, and minimum til-ilizer. I'i proven most successful. 39- Windbreaks and environmental plantings are generally loge are needed to control soil blowing and water erosion. suited to this soil. Soil blowing, the principal hazard in The potential native vegetation is dominated by establishing trees and shrubs, can be controlled by cul- western rnPotentialwheatgrass sproductionand blue grama. anges f Buffalograss1,000 is s al• so = ' tivating only in the tree row and by leaving a strip of present ration between the rows. Supplemental irrigation per acre in favorable years to 600 pounds in unfavorable •! I is 1'y e' r,m 38 SOIL SURVEY PC III years. As range condition deteriorates, a blue grama-buf- Closely spaced contour ditches can be used in irrigating falograss sod forma. Undesirable weeds and annuals in- close grown crops. Contour furrows should be used for vade the site as range condition becomes poorer. row crops. Applications of barnyard manure and commer- ' +i 1 I Management of vegetation on this soil should be based cial fertilizer help to maintain good production. Keeping ''; on taking half and leaving half of the total annual produc- tillage to a minimum and utilizing crop residue are impor- ,=`' lion. Range pitting can reduce runoff. Seeding is desirable tent. if the range is in poor condition. Western wheatgrass, The potential native vegetation is dominated by blue grama, sideoats grama, buffalograss, pubescent western wheatgrass and blue grams. Buffalograss is also wheatgrass, and crested wheatgrass are suitable for seed- present. Potential production ranges from 1,000 pounds I ing. The grass selected should meet the seasonal require- per acre in favorable years to 600 pounds in unfavorable i"` ments of livestock. It can be seeded into a clean, firm years. As range condition deteriorates, a blue grama-buf IF - sorghum stubble, or it can be drilled into a firm prepared falograss sod forms. Undesirable weeds and annuals in- t, seedbed. Seeding early in spring has proven most success- vade the site as range condition becomes poorer. 6 t ful. Management of vegetation on this soil should be based +ti Windbreak and environmental plantings are generally on taking half and leaving half of the total annual produc- not suited to this soil. Onsite investigation is needed to tion. Range pitting can reduce runoff. Seeding is desirable +. 3, determine if plantings are feasible.Supplemental water is if the range is in poor condition. Western wheatgrass, p "" needed for successfulplantings. blue grams, sideoats grams, buffalograss, pubescent .:+ k,;.'. Wildlife is an important secondary use of this soil. The wheatgrass, and crested wheatgrass are suitable for seed- cropland ` areas provide favorable habitat for ring-necked ing. The grass selected should meet the seasonal require- 1t I pheasant and mourning dove. Many nongame species can ments of livestock. It can be seeded into a clean, firm be attracted by establishing areas for nesting and escape sorghum stubble, or it can be drilled into a firm prepared I cover. For pheasant, undisturbed nesting is essential and seedbed. Seeding early in spring has proven most success- should be included in plans for habitat development, espe- fu1. ', pally in areas of intensive agriculture. Rangeland wildlife, Windbreaks and environmental plantings are generally for example, the pronghorn antelope, can be attracted by not suited to this soil Onsite investigation is needed to determine if plantings are feasible. Supplemental water is developing livestock watering facilities, managing livestock grazing, and reseeding where needed. needed for successful plantings. •° This soil has poor potential for urban uses and only Wildlife is an important secondary use of this soil. The cropland areas provide favorable habitat for ring-necked ,. moderate potential for recreational development. The pheasant and mourning dove. Many nongame species can { , chief limiting features are the underlying shale, the low be attracted by establishing areas for nesting and escape ; strength, and the moderate to high shrink swell. These cover. For pheasants, undisturbed nesting cover is essen- features present severe problems in dwelling and road tial and should be included in plans for habitat develop • - . ment, especiallyconstruction and in use of septic tank absorption fields in areas of intensive agriculture. Range- , �; and sewage lagoons. Capability subclass Ills irrigated, land wildlife, for example, the pronghorn antelope, can be !r IVe nonirrigated; Clayey Plains range site. x attracted by developing livestock watering facilities, 4 t 57—Renohill clay loam, 3 to 9 percent slopes. This is managing livestock a moderately deep, well drained soil on upland hills and SI g grazing, and reseeding where needed. . rI ridges at elevations of 4,850 to 5,200 feet. It formed in vetos msoil has a poor potential flimiting for urban and there un erly- nal +! � development. The chief features are underly- Ij{. residuum from shale. Included in mapping are small areas ing shale, the low strength, and the moderate to high of soils that have shale deeper than 40 inches. i shrink swell. These features present severe problems in I. Typically the surface layer is grayish brown clay loam dwelling and road construction and in use of septic tank • about 9 inches thick. The subsoil is grayish brown and absorption fields and sewage lagoons. Capability subclass pale brown clay loam about 12 inches thick. The sub- IVe irrigated, VIe nonirrigated; Clayey Plains range site. 4i stratum is pale brown clay loam. Shale is at a depth of 58—Shingle loam, 1 to 3 percent slopes. This is a shal- about 29 inches. ` low, well drained soil on plains at elevations of 4,850 to Permeability is slow. Available water capacity is 5,200 feet. It formed in residuum from shale. Included in • moderate. The effective rooting depth is 20 to 40 inches. mapping are some small areas of shale and sandstone out- 0 t" Surface runoff is medium to rapid, and the erosion hazard crops. is moderate. Typically the surface layer is grayish brown loam about "{; This soil is suited to limited cropping. Intensive 6 inches thick. The underlying material is light yellowish "!3y" cropping is hazardous because of erosion. The cropping brown clay loam. Shale is at a depth of about 18 inches. system should be limited to such close grown crops as al- Permeability is moderate. Available water capacity is c falls, wheat, and barley. The soil also is suited to ir- low. The effective rooting depth is 10 to 20 inches. Sur- rigated pasture. A suitable cropping system is 3 to 4 face runoff is medium, and the erosion hazard is low. years of alfalfa followed by 2 years of corn and small This soil is suited only to limited cropping. A suitable (i� grain and alfalfa seeded with a nurse crop. cropping system is 3 to 4 years of alfalfa and 2 years of I ' I I ant 1:'. WELD COUNTY, COLORADO, SOUTHERN PART 41 The potential native vegetation on this range site is This soil is suited to limited cropping. Intensive C'ominated by sand bluestem, sand reedgrass, and blue cropping is hazardous because of erosion. The cropping grama. Needleandthread, switchgrass, sideoats grama, system should be limited to such close grown crops as el- and western wheatgrass are also prominent. Potential falfa, wheat, and barley. The soil is also suited to ir- production ranges from 2,200 pounds per acre in favora- rigated pasture. A suitable cropping system is 3 to 4 ble years to 1,800 pounds in unfavorable years. As range years of alfalfa followed by 2 years of corn and small condition deteriorates, the sand bluestem, sand reedgrass, grain and alfalfa seeded with a nurse crop. and switchgrass decrease and blue grama, sand dropseed, Closely spaced contour ditches or sprinklers can be and sand sage increase. Annual weeds and grasses invade used in irrigating close grown crops. Contour furrows or the site as range condition becomes poorer. sprinklers should be used for new crops. Applications of Management of vegetation on this soil should be based nitrogen and phosphorus help in maintaining good produc- on taking half and leaving half of the total annual produc- lion. tion. Seeding is desirable if the range is in poor condition. The potential native vegetation on this range site is Sand bluestem, sand reedgrass, switchgrass, sideoats dominated by sand bluestem, sand reedgrass, and blue grama, blue grama, pubescent wheatgrass, and crested grama. Needleandthread, switchgrass, sideoats grama, wheatgrass are suitable for seeding. The grass selected and western wheatgrass are also prominent. Potential should meet the seasonal requirements of livestock. It can production ranges from 2,200 pounds per acre in favora- be seeded into a clean, firm sorghum stubble or it can be ble years to 1,800 pounds in unfavorable years. As range drilled into a firm prepared seedbed. Seeding early in condition deteriorates, the sand bluestem, sand reedgrass, spring has proven most successful. and switchgrass decrease and blue grama, sand dropseed, Windbreaks and environmental plantings are generally and sand sage increase. Annual weeds and grasses invade 3, not suited to this soil. Onsite investigation is needed to the site as range condition becomes poorer. determine if plantings are feasible. Management of vegetation on this soil should be based i` Wildlife, is an important secondary use of this soiL The on taking half and leaving half of the total annual produc- ' cropland areas provide favorable habitat for ring-necked tion. Seeding is desirable if the range is in poor condition. pheasant and mourning dove. Many nongame species can Sand bluestem, sand reedgrass, switchgrass, sideoats be attracted by establishing areas for nesting and escape grama, blue grama, pubescent wheatgrass, and crested cover. For pheasants, undisturbed nesting cover is essen- wheatgrass are suitable for seeding. The grass selected • 1 and should be included in plans for habitat develop- should meet the seasonal requirements of livestock. It can Anent, especially in areas of intensive agriculture. Range- be seeded into a clean, firm sorghum stubble, or it can be land wildlife, for example, the pronghorn antelope, can be drilled into a firm prepared seedbed. Seeding early in attracted by developing livestock watering facilities, spring has proven most successful. managing livestock grazing, and reseeding where needed. Windbreaks and environmental plantings are generally The underlying sandstone is the most limiting feature not suited to this soil Onsite investigation is needed to of this soil. Neither septic tank absorption fields nor determine if plantings are feasible. sewage lagoons function properly. Site preparation for Wildlife is an important secondary use of this soil. The dwellings is costly. Enviornmental and beautification cropland areas provide favorable habitat for ring-necked plantings of trees and shrubs can be difficult to establish. pheasant and mourning dove. Many nongame species can Potential is good, however, for such recreational develop- be attracted by establishing areas for nesting and escape ment as camp and picnic areas and playgrounds. Capabili- cover. For pheasants, undisturbed nesting cover is essen- ty subclass IVe irrigated, IVe nonirrigated; Sandy Plains tial and should be included in plans for habitat develop- range site. ment, especially, in areas of intensive agriculture. Range- 63—Terry fine sandy loam, 3 to 9 percent slopes. This land wildlife, for example, the pronghorn antelope, can be 4s a moderately deep, well drained soil on plains at eleva- attracted by developing livestock watering facilities, bons of 4,500 to 5,000 feet. It formed in residuum from managing livestock grazing, and reseeding where needed. ''sandstone. Included in mapping are small areas of soils The underlying sandstone is the most limiting feature that have sandstone deeper than 40 inches. Also included of this soil. Neither septic tank absorption fields nor 'are small areas of soils that have a sandy clay loam and sewage lagoons function properly. Site preparation for clay loam subsoil. dwellings is costly. Environmental and beautification Typically the surface layer of this Terry soil is pale plantings of trees and shrubs can be difficult to establish. brown fine sandy loam about 6 inches thick. The subsoil is Potential is good, however, for such recreational develop- 'pale brown fme sandy loam about 18 inches thick. The ment as camp and picnic areas. Capability subclass IVe ir- substratum is fine sandy loam. Sandstone is at a depth of rigated, VIe nonirrigated; Sandy Plains range site. about 32 inches. 64—Thedalund loam, 1 to 3 percent slopes. This is a Permeability is moderately rapid. Available water moderately deep, well drained soil on plains at elevations capacity is moderate. The effective rooting depth is 20 to of 4,900 to 5,250 feet. It formed in residuum from shale. 40 inches. Surface runoff is medium to rapid, and the ero- Included in mapping are small areas of soils that have don hazard is moderate. shale and sandstone deeper than 40 inches. WELD COUNTY, COLORADO, SOUTHERN PART 47 I Ateattracted by establishing areas for nesting and escape wheatgrass are suitable for seeding. The grass selected ver. For pheasants, undisturbed nesting cover is essen- should meet the seasonal requirements of livestock. It can I tial and should be included in plans for habitat develop- be seeded into a clean, firm sorghum stubble, or it can be j; ment, especially in areas of intensive agriculture. Range- drilled into a firm prepared seedbed. Seeding early in land wildlife, for example, the pronghorn antelope, can be spring has proven most successful. li attracted by developing livestock watering facilities, Windbreaks and environmental plantings are fairly well managing livestock grazing, and reseeding where needed. suited to this soil. Blowing sand and low available water I This soil has good potential for urban and recreational capacity are the principal hazards in establishing trees 4 development. Once established, the lawns, shrubs, and and shrubs. The soil is so loose that trees should be it trees grow well. The chief limiting soil feature is the planted in shallow furrows and vegetation maintained rapid permeability in the substratum, which causes a between the rows. Supplemental irrigation may be needed hazard of ground water contamination from sewage to insure survival. Trees that are best suited and have lagoons. In places recreational development is limited by good survival are Rocky Mountain juniper, western '" the susceptibility to soil blowing. Capability subclass IIIe redcedar, ponderosa pine, and Siberian elm. The shrubs ted, IVe nonirrigated; Sandy Plains range site. best suited are skunkbush sumac, lilac, and Siberian Cr Vona loamy sand, 3 to 5 percent slopes. This is a peashrub. Wildlife is an important secondary use of this soil. The deep, somewhat excessively drained soil on plains and cropland areas provide favorable habitat for ring-necked ti high d eolian ma at luvl pf its.4,6 I0 to 5,200 d-in feet. It pheasant and mourning dove. Many nongame species can formed in vee or alluvial deposits. Included in mapping be attracted by establishing areas for nesting and escape are some leveled areas. Also included are small areas of cover. For pheasants, undisturbed nesting cover is essen- soils that have a loamy substratum and some areas of tial and should be included in plans for habitat develop- soils that are non eons to a depth of 60 inches. ment, especially in areas of intensive agriculture. Range- Typically the surface layer of this Vona soil is grayish land wildlife, for example, the pronghorn antelope, can be ' brown. The upper 6 inches is loamy sand and the lower 5 attracted by developing livestock watering facilities, i inches is fine sandy loam. The subsoil is brown and light managing livestock grazing,and reseeding where needed. ': yellowish brown fine sandy loam about 14 inches thick. The substratum to a depth of 60 inches is sandy loam. This soil has good potential for urban and recreational Permeability is moderately rapid. Available water development. Once established, the lawns, shrubs, and trees grow well. The primary limiting soil feature is the pacify is moderate. The effective rooting depth is 60 rapid permeability in the substratum, which causes a _aches or more. Surface runoff is slow, and the erosion hazard of ground water contamination from sewage s hazard is low. lagoons. In places recreational development is limited by This soil is suited to limited cropping. Intensive the susceptibility to soil blowing. Capability subclass IVe cropping is hazardous because of soil blowing. The irrigated, VIe nonirrigated; Sandy Plains range site. cropping system should be limited to such close grown 74—Vona loamy sand, 5 to 9 percent slopes. This is a 4drops as alfalfa, wheat, and barley. The soil is also suited deep, somewhat excessively drained soil on plains at to irrigated pasture. A suitable cropping system is 3 to 4 elevations of 4,600 to 5,200 feet. It formed in eolian • years of alfalfa followed by 2 years of corn and small deposits. Included in mapping are small areas of soils that grain and alfalfa seeded with a nurse crop. have a loamy substratum and areas of soils that are non- '' Closely spaced contour ditches or sprinklers can be calcareous to a depth of 60 inches. 'pied in irrigating close grown crops. Contour furrows or Typically the surface layer is grayish brown. The upper ppinklers should be used for new crops. Application of 6 inches is loamy sand and the lower 4 inches is fine ,< yard manure and commercial fertilizer helps to main- sandy loam. The subsoil is brown and light yellowish good production. brown fine sandy loam about 12 inches thick. The sub- The potential native vegetation on this range site is stratum to a depth of 60 inches is loamy sand. nominated by sand bluestem, sand reedgrass, and blue Permeability is moderately rapid. Available water a. Needleandthread, switchgrass, sideoats grama, capacity is moderate. The effective rooting depth is 60 is western wheatgrass are also prominent. Potential inches or more. Surface runoff is medium, and'the erosion production ranges from 2,200 pounds per acre in favors- hazard is low. years to 1,800 pounds in unfavorable years. As range The potential native vegetation on this range site is iition deteriorates, the sand bluestem, sand reedgrass, dominated by sand bluestem, sand reedgrass, and blue id switchgrass decrease and blue grams, sand dropseed, grama. Needleandthread, switchgrass, sideoats grama, ,d sand sage increase. Annual weeds and grasses invade and western wheatgrass are also prominent. Potential ie site as range condition becomes poorer. production ranges from 2,200 pounds per acre in favora- ;Management of vegetation on this soil should be based ble years to 1,800 pounds in unfavorable years. As range ,,:taking half and leaving half of the total annual produc- condition deteriorates, the sand bluestem, sand reedgrass, Iii `Seeding is desirable if the range is in poor condition. and switchgrass decrease and blue grama, sand dropseed, d bluestem, sand reedgrass, switchgrass, sideoats and sand sage increase. Annual weeds and grasses invade w-. a, blue grams, pubescent wheatgrass, and crested the site as range condition becomes poorer. i' r , !-r WELD COUNTY, COLOR. SURVEY pniuction ranges from 1,750 pounds per acre in favors- The potential native vegetation on this range site is L years to 950 pounds in unfavorable years. As range dominated by sand bluestem, sand reedgrass, and blue ass, sideoats grama, and deteriorates, ec e e s grams, littlsedge, and bluestem, bl a and western Needleandthread, ass are italso prominent. Potential and sand reedgrass decrease;g yucca, sedge, grams increase; and forage production drops. production ranges from 2,200 pounds per acre in favora- Management of vegetation should be based on taking ble years to 1,800 pounds in unfavorable years. As range I half or less of the total annual production. Deferred graz- condition deteriorates, the sand bluestem, sand reedgrass, • ing is practical in improving range condition. Seeding and and and sand sages s decrease. e ndablue we grama,and gasses inand vade mechanicalia treatment are impractical. the site as range condition becomes poorer. • Windbreaks and environmental plantings are generally Management of vegetation on this soil should be based • not suited mn to ant soil.are fe investigation is needed to on taking half and leaving half of the total annual produc- t determine if plantings feasible. Production of vegetation on this treeless soil is low, tion. Seeding is desirable if the range is in poor condition. n Sand bluestem, sand reedgrass, switchgrass, sideoats 1 especiallylowas during drought, when angela d wildlife,iie can b grams, blue grama, pubescent wheatgrass, and crested as low as 300 pounds per acre. Rangeland ym such a as wheatgrass are suitable for seeding. The grass selected s antelope and scaled quail, can be attracted by managing livestock grazing, installing livestock watering facilities, should meet the seasonal requirements of livestock. It can ,s and reseeding where needed. be seeded into a clean, firm sorghum stubble or it can be This soil has poor potential for urban development. The is the shallow depth to sandstone. drilled into a firm prepared seedbed. Seeding early in b chief limiting feature spring has proven most successful. 1 Capability subclass VIe irrigated, VIe nanirrigated; Sand- Windbreaks and environmental plantings are generally le s „�y, Breaks range site. not suited to this soil. Onsite investigation is needed to �° C7 Terry fine sandy loam, 0 to 3 percent slopes. This determine if plantings are feasible. is a moderately deep, well drained soil on plains at eleva- Wildlife is an important secondary use of this soiL The ld tions of 4,500 to 6,000 feet. It formed in residuum from cropland areas provide favorable habitat for ring-necked n- sandstone. Included in mapping are small areas of soils pheasant and mourning dove. Many nongame species can rn• that have sandstone deeper than 40 inches. Also included be attracted by establishing areas for nesting and escape rn are small areas of soils that have a subsoil of sandy clay cover. For pheasants, undisturbed nesting cover is essen- ° y yin and clay loam. tial and should be included in plans for habitat develop- de the surface layer of this Terry soil is p �ypieally ale ment, especially in areas of intensive agriculture. Range- lal brown fine sandy loam about 6 inches thick.The subsoil is land wildlife, for example, the pronghorn antelope, can be ;n' pale brown fine sandy loam about 21 inches thick. The attracted by developing livestock watering facilities, en substratum tone is at is th pale brown inches.fine sandy loam. Sand- managing livestock grazing, and reseeding where needed. en stone is at a depth of about 37 The underlying sandstone is the most limiting feature Permeability is moderately rapid. Available water of this soil. Neither septic tank absorption fields nor ndgecapacity 0inches.is Surface runoff. f is slow, rooting e depth is 20to sewage lagoons function properly. Site preparation for •ed 40 Surface is slow, and the erosion hazard dwellings is costly. Enviornmental and beautification led is low. plantings of trees and shrubs can be difficult to establish. es. This grown wn in ited to most of the irrigated crops corn- Potential is good, however, for such recreational develop-ein- monly crops. the area. The system s depth restricts ment as camp and picnic areas and playgrounds. Capabili- reysome , suitable cropping a, and is corn,eat corn for 5• ty subclass IVe irrigated, IVe nonirrigated; Sandy Plains +ey silage, barley, 3 to 4 years of alfalfa, wheat. This soil w range site. is also well suited to irrigated pasture. ng its. fine sandy loam, 3 to 9 percent slopes. This 'es. Furrows or sprinklers can be used in irrigating row is a moderately deep, well drained soil on plains at eleva- at crops. Flooding from contour ditches and sprinkling are i tions of 4,500 to 5,000 feet. It formed in residuum from um suitable in irrigating close grown crops and pasture. Small of heads of water and short runs reduce the risk of erosion. sandstone. Included in mapping are small areas of soils have sandstone deeper than 40 inches. Also included Production can be maintained by frequent irrigations and are small areas of soils that have a sandy clay loam and ght by applications of barnyard manure and commercial fertil- cla loam subsoil. the izer. Keeping tillage to a minimum and utilizing crop Typically the surface layer of this Terry soil is pale fine residue are important brown fine sandy loam about 6 inches thick. The subsoil is• In y, andiga g m. Most t soil is suited to is winter wheat, pale brown fine sandy loam about 18 inches thick. The 120 winter and sorghum. of the acreage is planted to ubstratum is fine sandy loam. Sandstone is at a depth of 20 winter wheat. The predicted average yield is 25 bushels 32 inches. and per acre. The soil is summer followed in alternate years about 32 inch is moderately rapid. Available wae� to allow moisture accumulation. Generally precipitation is Y 5 Permeability capacity is moderate. The effective rooting depth is 20 tc byleaf Apo tub for mulch frl farming,g of fertilizer. l 40 inches. Surface runoff is medium to rapid, and the ero I Stubble striperopping, and minimum til- itial lage are needed to control soil blowing and water erosion. sion hazard is moderate. Hello