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c0-ePA-1 • ~s. Dept. or Agriculture <br />4/82 Soil Conservation Service <br />(180-12-11) <br />CCNSERVATIR~ PLAN HAP AND <br />SOIL AND CAPABILITY HAP LEGEND SHEET <br />Different kinds of Boll, range Bites, or woodland sites are separated on the <br />map by solid bLaCk lines, WithSn each area Ss ar. identifvine aymool or <br />'Tame, Thn fo11ov1ng eymlwle are shown on your map: <br />Symbol or Site Name <br />12-Dcrrlck vory cobbly sandy loam, 0 to 7 por- <br />cont etopee.. Thls Is a deep, vory cobbly, well <lrainod <br />soil that is loss.ihan 20 inchos thick over sand, gravel, <br />and cobbles. It occupies alluvlul Iona and lurrcrcc::. Tlru <br />average annual precipitation is about 7 inchos, the moan <br />annual air temperature is about 41 degrees F, and the <br />frost-tree ported .lasts about fly days. Slopes aro nearly <br />level. <br />Included In mapping are small areas of Graypoint grav= <br />oily sandy loam end Dunul gravolly sandy loam. <br />Typically, the surface Iayor is pale brown vory cobbly <br />sandy loam about 5 inches thick. The subsoil is yellowish <br />brown very gravolly clay loam about 7 inchos thick. Tho <br />substratum to a depth of about 17 inches is light brown- <br />ish gray vory cobbly sandy loam. Botow this is very <br />gravolly sand to a depth of 60 inches. <br />Permeability Is moderate in the subsoil and upper part <br />of the subsVattim and very rapid in the lower part of the <br />substratum. Available water capacity is low. Runotl is <br />very slow; and .the erosion hazard is slight. EI(ective <br />rooting depth is 60 inches or more. <br />This soil is used mainly as~native range for sheep 'and <br />cattle. A few areas are irrigated pasture and hayland. <br />Applications of commercial .fertilizer as well as manure <br />are needed .in the .irrigated areas, and plant residue <br />should bo roturriod to the soil. <br />Irrigation methods suitable for this soil aro border irri- <br />gation with short lengths of run and sprinkler irrigation. <br />The potential native vegetalion•is dominated by Indian <br />ricegrass, blue grams, winterlat, and ring muhly. II the <br />range deteriorates, the proportion of Indian ricegrass de- <br />creases and the amounts of blue grams, squirreltail, <br />threeawn, snakeweed, and rabbitbrush,increase. Unde- <br />sirable weeds and annual plants invade and become <br />abundant if the range condition becomes poorer. <br />Seeding is generally not advisable because of the low <br />rainfall and low available water capacity. Deterred graz- <br />ing, cross leneing, and stockwator facilities help to pro- <br />vont range deterioration and promote the growth of de- <br />sirable plant species. <br />Wildlife populations are limited on rangeland because <br />of low vegetative production. Openland and rangeland <br />wildlife such as jackrabbit, cottontail, and coyote arc best <br />suited to nonirrigated areas. Whore wildlife h~hitat is <br />planned on this sparsely vegetated soil, livestock grazing <br />Hoods to bo managed properly. In irrigated areas, crop <br />rosldues from oats and barley may bo used by ring• <br />Hocked phaasant, watartowl, and goose. <br />Generalized Descriptions <br />(Detailed descriptions aro nvnilablr it <br />your Soil Cmservntion Service office.) <br />ihls soil is a good source ;,I sand, grovel, and rc~aJl~ll, <br />lief caving of cutbanlis is a Irazord.whon oxcnvritin~. <br />Septic lank systems and sonitnry landfills mny coninm~- <br />nate ground walar bacauso of the vory rnpid Inllltrntion <br />rate of the substratum. Tho capability subclasses are IVs <br />irrigated and Vlls nonirrigated. <br /> <br />RANGE SITE: h10UNTAIN OUTWASH <br />