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2sS
WELD COUNTY, COLORADO, SOUTHERN PART 25
be drilled into a firm prepared seedbed. Plowing d Permeabilty is rapid. Available water capacity is
d ' g on the contour minimize runoff and soil I sea. moderate.The water table is usually about 24 to 36 inches
See g early in spring has proven most successful below the surface. Surface runoff is slow, and the erosion
Win reeks and environmental plantings are nerally hazard is low.
well sui d to this soil. Cultivation to control ompeting This unit is used as rangeland and irrigated cropland.
vegetatio should be continued for as m years as Cropping in irrigated areas is limited to the crops
possible fo wing planting.Trees that are b t suited and tolerant of water and salts. Light, frequent irrigations by
have good s ival are Rocky Mountain . 'per, eastern furrows and flooding reduce the salts accumulation,
redcedar, pon osa pine, Siberian elm, ussian-olive, and Pasture is the best use. Tall wheatgrass, tall fescue, and
hackberry. The hrubs beet suited ar skunkbush sumac, annual sweetelover are some of the best suited crops.
lilac,Siberian pe hrub, and Ameri plum. Commercial fertilizers improve the amount and value of
Wildlife is an i ortant second use of this soil. The forage produced.
cropland areas pro ide favorable abitat for ring-necked The potential native vegetation on this unit is
pheasant and mo • g dove. y nongame species can dominated by switchgrass,little bluestem,sand reedgrasa,
be attracted by esta "shing s for nesting and escape and western wheatgrass. Indiangrass, sand bluestem,
cover. For pheasants, diet ed nesting cover is essen- prairie cordgrass, slender wheatgrass, alkali saeaton, salt-
tial and should be inel e in plans for habitat develop- grass, sedge, and rush are also present. Potential produc-
ment, especially in areas intensive agriculture. Range- tion ranges from 4,000 pounds per acre in favorable years
i, land wildlife, for exam e pronghorn antelope, can be to 3,000 pounds in unfavorable years. As range condition
attracted by develo ng 'veetock watering facilities, deteriorates, the switchgrass, sand bluestem, indiangrass,
I managing livestock azing, d reseeding where needed. little bluestem, and prairie cordgrass decrease and salt-
This soil has g d potential or urban and recreational grass, blue grama, sand dropseed, sedge, and rush in-
development. I eased popula n growth in the survey crease. Undesirable weeds and annuals invade the site as
area has resu d in increased ho esite construction. The range condition becomes poorer.
chief litnitin soil feature for urban evelopment and road Management of vegetation on this unit should be based
coostructl is the limited capacity o this soil to support on taking half and leaving half of the total annual produc-
a load.S tie tank absorption fields fun ion properly,but tion. Seeding is desirable if the range is in poor condition.
eon= ty sewage systems should be ovided if the Switchgrass, sand bluestem, sand reedgrass, western
papa ion density increases. Because of th ermeability wheatgrasa, indiangrass, pubescent wheatgrass, and inter-
of a substratum, sewage lagoons must e sealed. mediate wheatgrass are suitable for seeding. The plants
ns, shrubs, and trees grow well. Capability bclase selected should meet the seasonal requirements of
e irrigated,Vie nonirrigated; Loamy Plains range 'te. livestock. They can be seeded into a clean, firm sorghum
35—Loup-Boel loamy sands, 0 to 3 percent slopes_ stubble, or they can be drilled into a firm prepared
< This level to nearly level map unit is on stream bottoms seedbed. Seeding early in spring has proven moat success-
and in drainageways of the sandhills at elevations of 4,550 ful. Capability subclass IVw irrigated, VIw nonirriated;
to 4,750 feet.The Loup soil occupies the lower or depres- Sandy Meadow range site.
O1 ": sional areas, which receive additional runoff. It makes up 6—Midway-Shingle complex, 5 to 20 percen epos.
about 56 percent of the unit. The Boel soil occupies the TM oderately sloping to strongly sloping in nit is on
slightly higher elevations. It makes up about 35 percent uplan ills and ridges at elevations of 5,05 o 5,250 feet.
of the unit. About 10 percent of the unit is Osgood sand The !di ay soil makes up about 50 pe nt of the unit,
▪ and Valent sand, and the S ' gle soil.about 35 percent. out 15 percent is
• The Loup soil is deep and poorly drained. It formed in Renohill cia loam and Tassel fine dy loam. The Mid-
*, sandy alluvium. Typically the surface layer is very dark way soil diffe tom the Shingle in having more than
grayish brown, mottled loamy sand about 16 inches thick. 35,.,.. percent clay e underlyin aterial.
sis The upper 24 inches of the underlying material is light The Midway soil shallow d well drained. It formed
s, brownish gray, mottled loamy sand. The lower part to a in residuum from cal eo shale. Typically the surface
0; depth of 60 inches is light brownish gray, mottled sandy layer is light olive b y about 7 inches thick. The
underlying material is ' h rownish gray clay about 6
ill Permeability is rapid. Available water capacity is inches thick. Depth to !care clayey shale is about 18
. moderate. The water table is at or near the surface in inches.
spring and about 86 inches below the surface in the fall. Permeability is ow. Available ter caessaity is low.
`.. Surface runoff is slow,and the erosion hazard is low. The effective ing depth is 10 to 2 ' thee. Surface ru-
s:<:' The Boel soil is deep and somewhat poorly drained. It noff is rapid, d the erosion hazard is m crate to high.
formed in stratified sandy alluvium. Typically the surface The Shi e soil also ie•shallow and w. drained and
', 'layer is grayish brown loamy sand about 14 inches thick. formed • residuum from calcareous shale. ically the
e -The underlying material to a depth of 60 inches is pale surfa layer is grayish brown loam about 6 in a thick.
. brown and very pale brown, stratified, mottled loamy Th underlying material is light yellowish bro clay
e sand. 1 about 12 inches thick. Depth to calcareous c ey
g
34 SOIL SURVEY
o drilled into a firm, clean sorghum stubble. Se ing ti ating only in the tree row and by leaving trip of
e in spring has proven most successful. rush ve tation between the rows. Supplements irrigation
ma gement can also help to improve deteriorated ange. may e needed at the time of planting a during dry
WI dbreake and environmental plantings are fa' ly well period Trees that are best suited and ha good survival
suited to this soil. Blowing sand and low avails e water are Roc Mountain juniper, eastern edar, ponderosa
eapacit are the principal hazards in establis ng trees pine, Sibe 'an elm, Russian-olive, a hackberry. The
and eh bs. This soil is so loose that trees should be shrubs best ited are skunkbush s ae, lilac, and Siberi-
planted shallow furrows, and vegetation is needed an peashrub.
between e rows. Supplemental irrigation in be needed Wildlife is a important s Mary use of this soil.
to insure rvival. Trees that are best sui d and have Ring-necked phe t, mou ng dove, and many non-
good survi al are Rocky Mountain jun er, eastern game species can be urn ed by establishing areas for
redeedar, po derosa pine, and Siberian el . The shrubs nesting and escape c . For pheasants, undisturbed
best suited a skunkbush sumac, like and Siberian nesting cover is essen ' nd should be included in plans
peashrub. for habitat develop nt, e ecially in areas of intensive
Wildlife is an 'mportant secondary use f this soil. The agriculture.
cropland areas p vide favorable habits for ring-necked Rapid expans' n of Greeley d the surrounding area
pheasant and mo ing dove. Many no ame species can has resulted ' urbanization of eh of this Otero soil.
be attracted by es bushing areas for esting and escape This soil h excellent potential fo urban and recrea-
cover. For pheasan , undisturbed nes g cover is essen- Lionel d elopment. The only limiti feature is the
tial and should be i eluded in plans or habitat develop- mode ly rapid permeability in the su tratum, which
ment, especially in as of intensiv agriculture. Range- can a hazard of ground water eonta tion from
land wildlife, for exa le, the pron orn antelope, can be s age lagoons. Lawns, shrubs, and trees ow well.
attracted by develop g livestoc watering facilities, apability subclass Its irrigated.
managing livestock gr g,and re eeding where needed. 51—Otero sandy loam, 1 to 3 percent slopes. T -s is a
Few areas of this so are in major growth and ur- deep, well drained soil on plains at elevations of 4,700 to
banked centers. The chi limi g feature is the rapid 5,250 feet. It formed in mixed outwash and eolian
permeability in the subst um, which causes a hazard of deposits. Included in mapping are small areas of soils that
round water contaminatio f m seepage. Potential for have loam and clay loam underlying material.
recreation is poor because the sandy surface layer. Typically the surface layer is brown sandy loam about
f Capability subclass IVe irrig ed, VIe nonirrigated; Deep 12 inches thick. The underlying material to a depth of 60
Sand range site. inches is pale brown calcareous fine sandy loam.
50—Otero sandy loam, to percent slopes. This is a Permeability is rapid. Available water capacity is
deep, well drained soil on smoo plains at elevations of moderate. The effective rooting depth is 60 inches or
4,700 to 5,250 feet. It for ed in "xed outwash and eolian more. Surface runoff is Blow, and the erosion hazard is
deposits. Included in ma ing are mall areas of soils that low.
have loam and clay loa underlyin material. This soil is used almost entirely for irrigated crops. It
Typically the sulfa layer is br n sandy loam about is suited to all crops commonly grown in the area. Land
12 inches thick. The denying mat ial to a depth of GO leveling, ditch lining, and installing pipelines may be
inches is pale brown Icareous fine s dy loam. needed for proper water application.
Permeability is apid. Available ater capacity is All methods of irrigation are suitable, but furrow ir-
moderate. The eff ctive rooting dept is 60 inches or rigation is the most common. Barnyard manure and'corn-
more. Surface ru ff ie slow, and the rosier' hazard is mercial fertilizer are needed for top yields.
low. In nonirrigated areas this soil is suited to winter wheat,
This soil is u d almost entirely for i ' ted crops. It barley, and sorghum. Most of the acreage is planted to
is suited to all tops commonly grown in t e area, includ- winter wheat. The predicted avenge yield is 28 bushels
ing corn, suga beets, beans, alfalfa, small ain, potatoes, per acre. The soil is summer fallowed in alternate years
and onions.. example of a suitable croppi system is 3 to allow moisture accumulation. Generally precipitaiton is
to 4 years f alfalfa followed by corn, cor for silage, too low for beneficial use of fertilizer.
sugar bee , small grain, or beans. Generally, eh charac- Stubble mulch farming, striperopping, and minimum til-
teristies a high clay content or a rapidly ermeable lage are needed to control water erosion. Terracing also
substrat slightly restrict some crops. may be needed to control water erosion.
All thods of irrigation are suitable, but f ow ir- The potential native vegetation on this range site is
rigatio is the most common. Proper irrigatio water dominated by sand bluestem, sand reedgrass, and blue
mans ement is essential. Barnyard manure and c trier- grama. Needleandthread, switchgrass, sideoats grama,
cial rtilizer are needed for top yields. and western wheatgrass are also prominent. Potential
mdbreaks and environmental plantings are gen lly production ranges from 2,200 pounds per acre in revere-
su- ed to this soil. Soil blowing, the principal ha in ble years to 1,800 pounds in unfavorable years- As range
e bushing trees and shrubs, can be controlled by 1- condition deteriorates, the sand bluestem, sand reedgrass,
3
Ca r\ - WELD COUNTY, COLORADO, SOUTHERN PART 35
and switchgrass decrease and blue grama, sand dropseed, should be grown at least 50 percent of the time. Contour
and sand sage increase. Annual weeds and grasses invade ditches and corrugations can be used in irrigating close
the site as range condition becomes poorer. grown crops and pasture. Furrows, contour furrows, and
Management of vegetation on this soil should be based cross slope furrows are suitable for row crops. Sprinkler
on taking half and leaving half of the total annual produc- irrigation is also desirable. Keeping tillage to a minimum
don. Seeding is desirable if the range is in poor condition. and utilizing crop residue help to control erosion. Main-
Sand bluestem, sand reedgrass, switchgrass, sideoats taming fertility is important. Crops respond to applica-
grama, blue grams, pubescent wheatgrass, and crested Lions of phosphorus and nitrogen.
wheatgrass are suitable for seeding. The grass selected The potential native vegetation on this site is
should meet the seasonal requirements of livestock. It can dominated by sand bluestem, sand reedgrass, and blue
be seeded into a clean, firm stubble, or it can be drilled grama. Needleandthread, switchgrass, sideoats grams,
into a firm prepared seedbed. Seeding early in spring has and western wheatgrass are also prominent. Potential
proven most successful. production ranges from 2,200 pounds per acre in favora-
Windbreaks and environmental plantings are generally ble years to 1,800 pounds in unfavorable years. As range
suited to this soil. Soil blowing, the principal hazard in condition deteriorates, the sand bluestem, sand reedgrass,
establishing trees and shrubs, can be controlled by cul- and switchgrass decrease, and blue grams, sand dropseed,
tivating only in the tree row and by leaving a strip of and sand sage increase. Annual weeds and grasses invade
vegetation between the rows. Supplemental irrigation the site as range condition becomes poorer.
may be needed at the time of planting and during dry Management of vegetation on this soil should be based
periods. Trees that are best suited and have good survival on taking half and leaving half of the total annual produc-
are Rocky Mountain juniper, eastern redcedar, ponderosa tion. Seeding is desirable if the range is in poor condition.
pine, Siberian elm, Russian-olive, and hackbeny. The Sand bluestem, sand reedgrass, switchgrass, sideoats
shrubs best suited are skunkbush sumac, lilac, and Siberi- grama, blue grama, pubescent wheatgrasa, and crested
an eashrub_
p wheatgrass are suitable for seeding. The grass selected
Wildlife is an important secondary use of this soil. should meet the seasonal requirements of livestock. It can
Ring-necked pheasant, mourning dove, and many non- .be seeded into a clean, fine sorghum stubble, or it can be
game species can be attracted by establishing areas for drilled into a firm prepared seedbed. Seeding early in
nesting and escape cover. For pheasants, undisturbed spring has proven most successful.
nesting cover is essential and should be included in plans Windbreaks and environmental plantings are generally
for habitat development, especially in areas of intensive suited to this soil_ Soil blowing, the principal hazard in
agriculture. establishing trees and shrubs, can be controlled by cul-
Rapid expansion of Greeley and the surrounding area tivating only in the tree row and by leaving a strip of
has resulted in urbanization of much of this Otero soil. vegetation between the rows. Supplemental irrigation
This soil has excellent potential for urban and recrea- may be needed at the time of planting and during dry
tional development. The only limiting feature is the periods. Trees that are best suited and have good survival
moderately rapid permeability in the substratum, which are Rocky Mountain juniper, eastern redcedar, ponderosa
causes a hazard of ground water contamination from pine, Siberian .elm, Russian-olive, and hackberry. The
sewage lagoons. Lawns, shrubs, and trees grow well. shrubs best suited are skunkbush sumac, lilac, and Siberi-
Capability subclass IIIe irrigated, IVe nonirrigated; an peashrub.
Sandy Plains range site. Wildlife is an important secondary use of this soil
62—Otero sandy loam, 3 to 5 percent slopes. This is a Ring-necked pheasant, mourning dove, and many non-
deep, well drained soil on plains at elevations of 4,700 to game species can be attracted by establishing area for
5,250 feet. It formed in mixed outwash and eolian nesting and escape cover. For pheasants, undisturbed
deposits. Included in mapping are small areas of soils that nesting cover is essential and should be included in plans
have loam and clay loam underlying material. Also in- for habitat development, especially in areas of intensive
eluded are small areas of soils that have sandstone and agriculture.
shale within a depth of 60 inches. Rapid expansion of Greeley and the surrounding area
Typically the surface layer of this Otero soil is brown has resulted in urbanization of much of this Otero soil.
sandy loam about 10 inches thick. The underlying material The soil has excellent potential for urban and recreational
to a depth of 60 inches is pale brown calcareous fine development. The only limiting feature is the moderately
sandy loam, rapid permeability in the substratum, which causes a
Permeability is rapid. Available water capacity is hazard of ground water contamination from sewage
moderate. The effective rooting depth is 60 inches or lagoons. Lawns, shrubs, and trees grow well Capability
more. Surface runoff is medium, and the erosion hazard is subclass life irrigated, VIe nonirrigated; Sandy Plains
low. range site.
This soil is used almost entirely for irrigated crops. It £3.Qtero sandy loam, 5 to 9 e ent slams Thic
is suited tb the crops commonly grown in the area. deep, well drat t elevations of 4,700 to
Perennial grasses and alfalfa or close growing crops 5" e . It formed in mixed outwas ' n
WELD COUNTY, COLORADO, SOUTHERN PART 45
ange condition deteriorates, the sand blues The potential vegetation is dominated by sand
s 'tchgrass, sand reedgrass, sideoats grama, and the bluestem, sand reedgrass, switchgrass, sideoats grams,
blu tern decrease, forage production drops, an sand needleandthread, little bluestem, and blue grama. Poten-
aage 'ncreases. Undesirable weeds and annuals nvade tial production ranges from 2,500 pounds per acre in
and ` owout" conditions can occur as range ndition favorable years to 1,800 pounds in unfavorable years. As
become oorer. range condition deteriorates, the sand bluestem,
Manag ent of vegetation on this soil shoul be based switchgrass, sand reedgrass, sideoats grams, and little
on taking alf and leaving half of the total an al produc- bluestem decrease, forage production drops, and sand
tion. Seedi is desirable if the range is in p r condition. sage increases. Undesirable weeds and annuals invade
Sand blues , sand reedgrass, indiangras , switchgrass, and "blowout" conditions can occur as range condition
sideoats gra , little bluestem, and blue ma are suits- becomes poorer.
ble for seed' . Because this soil is a eptible to soil Management of vegetation on this soil should be based
blowing, it sho d be seeded using an i rseeder, or the on taking half and leaving half of the total annual produc-
seed should be "11ed into a firm, cle sorghum stubble. tion. Seeding is desirable if the range is in poor condition.
Seeding early in ring has proven in t successful. Brush Sand bluestem, sand reedgrass, indiangrass, switchgrass,
management also can help in i roving deteriorated side-oats grams, little bluestem,and blue grams are suits-
range. ble for seeding. Because this soil is susceptible to soil
Windbreaks and e ironmental antings are fairly well blowing, it should be seeded using an interseeder or the
suited to this soil. Blo ing sand d the moderate avails- seed should be drilled into a firm, clean sorghum stubble.
ble water capacity are he pri pal hazards in establish- Seeding early in spring has proven most successful. Brush
big trees and shrubs.T soil - so loose that trees should management can also help in improving deteriorated
be planted in shallow a, maintaining vegetation range.
between the rows. Supp ntal irrigation is needed to Windbreaks and environmental plantings are generally
insure survival. Trees that best suited and have good not suited to this soil. Onsite investigation is needed to
survival are Rocky Mou juniper, eastern redcedar, determine if plantings are feasible.
ponderosa pine, and Sib 'an elm. The shrubs best suited Wildlife is an important secondary use of this soil. Ran-
are skunkbush sumac,F c, an Siberian peashrub. geland wildlife, for example, the pronghorn antelope, can
Wildlife is an impo ant see dary use of this soil The be attracted by developing livestock watering facilities,
cropland areas pray' e favorab habitat for ring-necked managing livestock grazing, and reseeding where needed.
pheasant and mou ing dove. M y nongame species can This soil has fair potential for urban development. The
be attracted by e ablishing areas or nesting and escape chief limiting soil features are the rapid permeability and
cover. For pheas ts, undisturbed sting cover is essen- the susceptibility to soil blowing. Septic tank absorption
tial and should a included in plans or habitat develop- fields function properly, but in places the sandy sub-
ment, eapeci in areas of intensive griculture. Range- stratum dues not properly filter the leachate. Sewage,
land wildlife, or example, the prongh antelope, can be lagoons must be sealed. Once established, lawns, shrubs,
attracted b developing livestock w ring facilities, and trees grow well. Capability subclass Vie irrigated,
managing l' estock grazing, and reseeding here needed. VIe nonirrigated; Deep Sand range site.
This so' has fair potential for urban de lopment. The —Valent-Loup complex, 0 to 9 percent slope his
primary iting soil features are the rapid ermeability leve to moderately sloping map unit occupies hi ,ridges,
and th susceptibility to soil blowing. Septic k absorp- and reasion or pothole-like areas in th andhills at
lion fi ds function properly, but in places the ndy sub- elevati s of 4,670 to 4,700 feet. The Vale soil makes up
strat does not properly filter the leachate. wage about 60 ercent of the unit, the Lou oil about 35 per-
lag ne must be sealed. Once established, the wns, cent. Abou percent is dune sand e Valent soil oecu-
s be, and trees grow well. Capability subclass I ir- pies the hills d ridges and the up soil the depressions
' ted, VIe nonirrigated; Deep Sand range site. or potholes.
70—Valent sand, 3 to 9 percent slopes. This is a deep, The Valent so is dee and excessively drained. It
excessively drained soil on plains at elevations of 4,650 to formed in eolian de s' . Typically the surface layer is
5,100 feet_ It formed in eolian deposits. Included in brown sand about 8 es thick The underlying material
mapping are small areas of soils that have lime within a to a depth of 60 i es is rown sand.
depth of 40 inches. Also included are small areas of soils Permeability rapid. vailable water capacity is
that have sandstone between 40 and 60 inches. moderate. Th effective roo ' g depth is 60 inches or
• Typically the surface layer of the Valent soil is brown more. Surf e runoff is slow, the erosion hazard is
sand about 6 inches thick. The underlying material to a low.
depth of 60 inches is brown sand. The up soil is deep and poorly 'ned. It formed in
. Permeability is rapid. Available water capacity is sandy Iluvium. Typically the surface er is very dark
?' moderate. The effective rooting depth is GO inches or gr sh brown, mottled loamy sand about inches thick.
more. Surface runoff is slow, and the erosion hazard is T underlying material to a depth of 60 i hes is light
low. ownish gray,mottled loamy sand and sandy" m.
•
46
SOIL SURVEY
ermeability is rapid. Available water capacit is yellowish brown fine sandy loam about 16 inches thick.
mo rate. A water table is at or near the surf e in The substratum to a depth of 60 inches is sandy loam.
sprin and about 36 inches below the surface in f' . Sur- Permeability is moderately rapid. Available water
face off is slow, and the erosion hazard is low. capacity is moderate. The effective rooting depth is 60
This it is used for rangeland and wildlife ha tat.The inches or more. Surface runoff is slow, and the erosion
potential native vegetation on the Valen soil is hazard is low.
dominated y sand reedgrass, sand blueste blue and in irrigated areas this soil is suited to the crops corn-
hairy , little bluestem, needleand read, and monly grown in the area. Perennial grasses and alfalfa or
sideoats gra Potential production rang from 1,800 close grown crops should be pounds per a in favorable years to 1,400 ounds in un- the time. Contour ditches and co wn at least
corrugations percent
be used in
favorable years. s range condition deteri tes,the sand irrigating close grown crops and pasture. Furrows, con-
bluestem, sand dgrass, sideoats a, and little tour furrows, and cross slope furrows are suitable for row
bluestem decrease, andhill muhly and owout grass in- crops. Sprinkler irrigation is also desirable. Keeping til-
crease, and forage oduction drops. "• owouts" occur as lege to a minimum and utilizing crop residue help to eon-
range condition beam s poorer. trol erosion. Maintaining fertility is important. Crops
The native vegetati on the Loup oil is dominated by respond to applications of phosphorus and nitrogen.
switchgrass, little blues in, sand re grass, and western in nonirrigated areas this soil is suited to winter wheat,
wheatgrass. Indiangrass, and blues in,prairie cordgrass, barley, and sorghum. Most of the acreage is planted to
slender wheatgrass, alka sacaton saltgrass, sedge, and winter wheat. The predicted average yield is 20 bushels
rush are also present Pot ntial oduetion ranges from per acre. The soil is summer fallowed in alternate years
4,000 pounds per acre in fa ra years to 3,000 pounds to allow moisture accumulation. Generally precipitation is
in unfavorable years. As ran ndition deteriorates, the too low for beneficial use of fertilizer.
switchgrass, sand bluestem, iangrass, little bluestem, Stubble mulch farm
and prairie cordgrass decrees nd saltgrass, mg, striperopping,blowing,and water
erosion.
on.
sand dropseed,eed, sedge, blue grama, lags are needed to control soil blowing water erosion.
ps and increase. Undesirable Terracing also may be needed to control water erosion.
weeds and annuals invade the ite as range condition The potential native vegetation on this range site is
becomes poorer. dominated by sand bluestem,
s Seeding with an inters der is a visable if the range is grama. Needleandthread, switehgrass, sideoats n blue
gratin,
in poor condition. Sand r edgrass, s d bluestem, sideoats and western wheatgrass
grams, switchgrass, lit bluestem, dian ss and blue are pounds alsn prominent_acre Potential
grams are suitable fo seeding. See 'n e ble ye
rsn ranges from to 1,800 r sin2,20 favorable per ears in favors_
. As range
has proven most su ssful. Grazing hould be ligt spring condition deteriorates, the sand bluestem, sand reedgrass,
prevent range dete ' ration. and switchgrass decrease and blue grama, sand dropseed,
Wildlife is an i orient secondary us of this unit. On and sand sage increase. Annual weeds and grasses invade
the Valent soil, angeland wildlife, f example, the the site as range condition becomes poorer.
pronghorn ante pe, can be attracted by developing Management of vegetation on this soil should be based
livestock wate g facilities, managing liv tock grazing, on taking half and leaving half of the total annual produc-
and reseedin here needed. tion. Seeding is desirable if the range is in poor condition.
The Loup oil, which is typically wet an roduces an Sand bluestem, sand reedgrass,abundance f wetland vegetation, attracts etland wil- grama, blue switchgrass,an crested
dlife ripe ' s, such as mallard, teal, geese, and iscellane- wheatgrass arere uitabl pubescent wheatgrass,T ass, and ected
ous sho irds. Primary management (sY g• grass selected
of this so for wet- should meet the seasonal requirements of livestock. It
land w• life includes managing livestock gratin fencing should be drilled into a clean, firm sorghum stubble or a
to co 1 livestock, protecting from fire, and p enting prepared seedbed. Seeding early in spring has proven
dr " ge. Natural wetland vegetation should be owed most successful.
to velop. Capability subclasa Vie irrigated, Vie nir- Windbreaks and environmental plantings arc fairly well
ri ted; Valent soil in Choppy Sand Meadow range le, suited to this soil. Blowing sand and low available water
I up soil in Sandy Meadow range site.
72—Vona loamy sand, 0 to 3capacity are the sl s loose ooses in establishing should rebe
percent slopes. This is a and shrubs. The soil is so that trees be
deep, somewhat excessively drained soil on plains and planted in shallow furrows and vegetation maintained
high terraces at elevations of 4,600 to 6,200 feet. It between the rows. Supplemental irrigation is needed to
formed in eolian or alluvial deposits. Included in mapping insure survival. Trees that are best suited and have good
are some leveled areas. Also included are small areas of survival are Rocky Mountain juniper, eastern redcedar,
soils that have a loamy substratum and some areas of ponderosa pine, and Siberian elm. The shrubs best suited
soils that are noncalcareous to a depth of 60 inches. are skunkbush sumac,lilac, and Siberian peashrub.
Typically the surface layer of this Vona soil is grayish Wildlife is an important secondary use of this soiL The
brown. The upper 6 inches is loamy sand and the lower 6 cropland areas provide favorable habitat for ring-necked
inches is fine sandy loam. The subsoil is brown and light pheasant and mourning dove. Many nongame species can
(C)
WELD COUNTY, COLORADO, SOUTHERN PART 47
be attracted by establishing areas for nesting and escape heatgrass are suitable for seeding. The grass eel ted
cover. For pheasants, undisturbed nesting cover is essen- ould meet the seasonal requirements of livestock. t can
tial and should be included in plans for habitat develop- be eeded into a clean,firm sorghum stubble, or i can be
ment, especially in areas of intensive agriculture. Range- dri d into a firm prepared seedbed. Seeding any in
land wildlife,for example, the pronghorn antelope, can be spri has proven most successful.
attracted by developing livestock watering facilities, W' breaks and environmental plantings are airly well
managing livestock grazing, and reseeding where needed. suited this soil. Blowing sand and low av ' ble water
This soil has good potential for urban and recreational capacit are the principal hazards in ester shing trees
development. Once established, the lawns, shrubs, and and sh s. The soil is so loose that tr a should be
trees grow well. The chief limiting soil feature is the Planted ' shallow furrows and vegeta - n maintained
rapid permeability in the substratum, which causes a between t rows. Supplemental irrigatio may be needed
hazard of ground water contamination from sewage to insure s rvivel. Trees that are best uited and have
lagoons- In places recreational development is limited by good survi I are Rocky Mountain uniper, western
the susceptibility to soil blowing. Capability subclass Hie redcedar, po derosa pine, and Siberi elm. The shrubs
irrigated, IVe nonirrigated; Sandy Plains range site. best suited re skunkbush sumac, lac, and Siberian
3—Vona loamy sand, 3 to 5 percent slopes. This is peashrub.
dee somewhat excessively drained soil on plains d Wildlife is important secondary use of this soil The
high terraces at elevations of 4,600 to 5,200 fe It cropland areas rovide favorable h itat for ring-necked
forme in eolian or alluvial deposits. Included in i pping pheasant and urning dove. Ma nongame species can
are so e leveled areas. Also included are small as of be attracted by stablishing areas or nesting and escape
soils th have a loamy substratum and some teas of cover. For pheas ts, undisturbe nesting cover is essen-
tial and should b included in p a for habitat develop-
soils that re noncalcareous to a depth of 60 ins es.
Typicall the surface layer of this Vona so is grayish ment, especially n areas of in ive agriculture. Range-
brown. The pper 6 inches is loamy sand the lower 5 land wildlife, for e mple, the onghorn antelope, can be
inches is fin sandy loam. The subsoil is b own and light attracted by dck opin'ngg $v took watering facilities,
yellowish bro n fine sandy loam about 4 inches thick. managing livestock ten a reseeding where needed.
The substratu to a depth of 60 inches ' sandy loam. Thin soil has good ten ' for urban and recreational
development. Once tab
Permeability 's moderately rapid. Available water us ed, the lawns, shrubs, and
capacity is mod ate. The effective Doting depth is 60 trees grow well. The ri limiting soil feature is the
ore rapid permeability in th substratum, which causes
inches or m . dace runoff is ow, and the erosion
hazard is low. hazard of ground wa e contamination from sewage This soil is sin d to limit cropping. Intensive lagoons. In places re onal development is limited by
cropping is hazard s beams of soil blowing. The the susceptibility to soil lowing. Capability subclass We
cropping system sho d be ll to such closegrown irrigated, Vie nonirriga ; Sandy Plains range site.
PP g Y 74—Vona loamy , to 9 percent slopes. This is a
crops as alfalfa, wheat, and b ley. The soil is also suited deep, somewhat ex i ly drained soil on plains at
to irrigated pasture. A uita e cropping system is 3 to 4 elevations of 4,600 o 5 feet. It formed in eolian
years of alfalfa follows b 2 years of corn and small deposits. Included i mappi are small areas of soils that
grain and alfalfa seeded a nurse crop. have a loamy subs atom a areas of soils that are non-
` Closely spaced conto ditches or sprinklers can be calcareous to a de h of 60 i hes.
used in irrigating close o n crops. Contour furrows or Typically the s ace layer grayish brown. The upper
apinlders should be u d f new crops. Application of 6 inches is lot sand and e lower 4 inches is fine
barnyard manure and omme cial fertilizer helps to main- sandy loam. T e subsoil is wn and light yellowish
thin good production brown fine s dy loam about inches thick. The sub-
't' The potential we vegeta on on this range site is stratum to a pth of 60 inches i loamy sand.
dominated by sa bluestem, d reedgrass, and blue Penneabili y is moderately pid. Available water
grama. Needle dthread, switc s, sideoats grama, capacity is oderate. The effecti e rooting depth is 60
and western ieatgrass are al prominent. Potential inches or re. Surface runoff is m ium,and the erosion
production ra es from 2,200 you a per acre in favors- hazard is w.
ble years to ,800 pounds in unfavo ble years. As range The p ential native vegetation o this range site is
condition d eriorates, the sand blue em, sand reedgrass, domina d by sand bluestem, sand dgrass, and blue
p. and switc ass decrease and blue a, sand dropseed, grama. Needleandthread, ewitchgrass, ideoats grams,
,t and sand age increase. Annual weeds d grasses invade and estern wheatgrass are also pro ent. Potential
the site range condition becomes poor . pr ction ranges from 2,200 pounds per re in favora-
'f;,1 Man ment of vegetation on this soil hould be based ble ears to 1,800 pounds in unfavorable ye . As range
Vl-' on t ng half and leaving half of the total nnual produe- c dition deteriorates, the sand bluestem, s reedgrase,
.,';
do ceding is desirable if the range is in or condition. d switchgrass decrease and blue grama, san dropaced,
t� , bluestem, sand reedgrass, switchgra sideoats nd sand sage increase- Annual weeds and gras s invade
I. gr ma, blue grama, pubescent wheatgrass, a crested the site as range condition becomes poorer.
t 1
i_
WELD COUNTY, COLORADO, SOUTHERN PART 117
TABLE 10.--RECREATIONAL DEVELOPMENT--Continued
—T^
Soil name and Camp areas Picnic areas Playgrounds Paths and trails
map symbol
184:
Aden' Moderate: ;Moderate: Moderate: Moderate:
peros slowly, ; dusty. dusty, dusty.
I dusty. slope.
19 Severe: Moderate: Moderate: Slight.
Colombo floods. floods. floods.
20 Slight Slight Moderate: Slight.
Colombo
slope.
21 Moderate: Moderate: Moderate: Moderate:
Dacono too clayey. too clayey. too clayey. too clayey.
22 Moderate: Moderate: Moderate; ,Moderate:
Dacono too ciaYey• too clayey. slope, ; too clayey.
too clayey.
23 Moderate: !Moderate; Moderate; ;Moderate:
Fort Collins dusty, ; dusty. dusty. ; dusty. -
2a Moderate: :Moderate: Moderate: Moderate:
Fort Collins dusty. ; dusty. dusty, dusty.
slope.
25, 26 Severe: Moderate: ;Severe: ,Slight.
Maverson floods. ; floods. floods.
27, 28 Severe: :Severe: Severe: Severe:
Neldt too clayey- ; too clayey. too clayey. too clayey.
I
29 Slight Slight Slight Slight.
Julesburg
30 Slight ;Slight Moderate: Slight.
Julesburg slope.
31 Moderate: :Moderate: Moderate, Moderate:
Kim dusty. ; dusty. dusty- dusty.
32, 33 Moderate: Moderate: Moderate: Moderate:
Kim dusty. dusty. slope, dusty.
dusty-
3s Moderate: Moderate: Severe: Moderate:
Kim dusty. dusty. slope. dusty.
35a:
Loup Severe: Severe: Severe: Severe:
wetness, wetness. wetness. wetness.
floods.
goel Severe: Moderate: Moderate.
v ess, Moderate:
wetness. wetness, wetness, wetness,
floods. floods, floods. floods.
36':
Midway Severe: Severe: ;Severe: Severe:
too clayey, too clayey. Slope, too clayey.
pares slowly. I too clayey,
depth to rock.
Shingle Moderate: ;Moderate: ;Severe; Moderate:
too clayey. ; slope, ; slope, too clayey.
; too clayey. ; depth to rock.
37 Slight ;Slight ;Slight Slight.
Nelson 1
See footnote at end of table- Q
V
I
118 SOIL SURVEY
TABLE 70.--RECREATIONAL DEVELOPMENT--Continued ;';'
Soil name and Camp areas Picnic areas Playgrounds Paths and trails 'k,i,
map symbol
•
'Y
38 Slight Slight Severe: Slight.
Nelson
slope.
39 Moderate: Slight Moderate: Slight.
Nunn peres slowly. peres slowly.
40 Moderate: Slight Moderate: Slight.
Nunn peres slowly. peres slowly,
slope.
41 Moderate: Moderate: Moderate: Moderate:
Nunn peres slowly. too clayey. peres slowly, too clayey.
42 Moderate: Moderate: Moderate: Moderate:
Nunn peres slowly. too clayey. peres slowly, too clayey.
slope.
43 Moderate: Moderate: Moderate: Moderate:
Munn peres slowly. too sandy_ peres slowly. too sandy.
44, 45 Moderate: Moderate: ,Moderate: Moderate:
Olney too sandy, too sandy, too sandy, too sandy,
dusty. dusty, ' slope, dusty.
dusty.
46 ;Moderate: Moderate: ;Moderate: Moderate:
Olney ; dusty. dusty. ; dusty. - dusty.
el, 48 ;Moderate: Moderate: :Moderate: Moderate:
Olney ; dusty. dusty. ; dusty, dusty.
I ; slope.
49 ;Moderate: Moderate: :Severe: Moderate:
Osgood ; too sandy. too sandy, I too sandy, too sandy.
50 ;Slight Slight ;Slight Slight.
Otero
5) , 52 ;Slight Slight Moderate: Slight.
Otero slope.
53 ;Slight Slight Severe: Slight.
Otero slope.
54 ;Slight Slight Slight Slight.
Paoli
I
55 ;Slight Slight Moderate: Slight.
Paoli slope.
55 :Moderate: Moderate: Moderate: Moderate:
Renohill 1 peres slowly, too clayey, too clayey, too clayey.
too clayey. pares slowly.
57 ;Moderate: Moderate: Severe: Moderate:
Renohill : peres slowly, too clayey. slope. too clayey.
: too clayey.
58, 59 ;Moderate: Moderate: Severe: Moderate:
Shingle : too clayey. too clayey. depth to rock. too clayey.
604:
Shingle :Moderate: Moderate: Severe: Moderate:
1 too clayey. too clayey. slope, too clayey.
depth to rock.
See footnote at end of table.
1
WELD COUNTY, COLORADO, SOUTHERN PART 119
• TABLE 1O.--RECREATIONAL DEVELOPMENT--Continued
____��...-_____
_-�_, '...--
Soil name and Camp areas Picnic areas Playgrounds ; Paths and trails
map symbol ;
-- i ;
60': j
Renohill ;Moderate: Moderate: :Severe: :Moderate:
' peres slowly, too clayey. ; slope.P ; too clayey,
: too clayey.
61 ;Moderate: Moderate: ;Severe: :Slight.
Tassel : slope. slope. ; depth to rock,
slope.
62 Moderate: :Moderate: :Moderate: Moderate:
Terry dusty. : dusty. : dusty, dusty.
: depth to rock.
63- Moderate: ;Moderate: ;Severe: Moderate:
Terry dusty. I dusty. : slope. dusty.
641 :Moderate: ;Moderate: Moderate: Slight.
Thedalund , : dusty. : dusty. • 310pe,
depth to rock,
dusty.
65 - ;Moderate: ;Moderate: Severe: Slight.
Thedalund ; dusty. ; dusty. slope.
66---- :Moderate: ;Moderate: Moderate: Moderate:
Ulm ; peres slowly, : too clayey. , peres slowly. too clayey.
; too. clayey. ;
67 ;Moderate: :Moderate: :Moderate: Moderate:
Ulm ; peres Slowly, ; too clayey. : peres slowly, too clayey.
: too clayey. ; too clayey,
slope.
63' Severe: :Severe: :Severe: :Severe:
Ustic Torriorthents small stones, : smell stones, ' slope, ; small stones,
too sandy. ; too sandy. ; small atones, ; too sandy.
too sandy.
69 :Moderate: :Moderate: :Severe: :Severe:
• Valent ; too sandy, : too sandy, : too sandy. ' t00 sandy.
: dusty, : dusty. I
70-- Moderate: 'Moderate: ;Severn: :Severe:
I Valent too sandy, ( too sandy, : too sandy, : too sandy.
dusty. ; dusty- : slope.
11*;
,
Valent ;Moderate: ;Moderate: 'Severe: ;Severe:
too sandy, ; too sandy, too sandy, ; too sandy.
dusty. ; dusty. slope.
Loup :Severe: ,Severe: ,Severe: :Severe:
: wetness, , wetness- wetness. ' wetness.
ti floods.
{ 72 'Moderate: loderate: Moderate: :Moderate:
;: Vona too sandy,
too sandy, too sandy, : too sandy,
dusty. dusty. dusty. : dusty_
73 :Moderete: Moderate. 'Moderate: ;Moderate:
Vona ; too sandy, ; too .Shady, too sandy, ; too sandy,
dusty. ; dusty. slope, : dusty.
dusty.
7Q ;Moderate: ;Moderate: :Severe.: Moderate:
Vona too sandy, too sandy, I slope. too sandy,
dusty. dusty. dusty.
See footnote at end of table.
Rt..
y
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