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UNITED STATES DEPARTMENT OF AGRICULTURE <br />Soil Conservation Services Colorado <br />Technical Guide RANGE SITE NO 310 <br />f Field Office._.-.- - <br />I_ -Section 11 E August 1975 <br />RANGE SITE DESCRIPTION , <br />fo r. <br />} s <br />SANDY FOOTHILLS <br />Land. fResource.,Area ` :Southern. Rocky'Mounta?ns (48) i , w <br />Centeal.Desert lc Basins, Mountains, a ` <br />and ..Plateaus <br />wi , S f r <br />,. Colorado:.arid' Green Rivers <br />' a <br />s Plateaus :(35) ti r r :..? <br />x a 1 <br />:PHYS l CAL !CHARACTERI ST I CS <br />a rq.vy <br />t ti St <br />h Physiographtc Features , <br />awls <br />Thts:-:sfte::occurs :as roll ing uplands and may occur at the base of"? Y ^"??h <br />.? sandstone bluffs. This site ranges from steep slopes to gent y <br />- <br />I rolling mesas . .. ??? , <br />between 3 to- X30 percent, The' d i reef ion and`• <br />a <br />The slope may vry <br />degree do. not influence the site. Elevation ranges from 5500 ?,. <br />< to7400 feet. , <br />?matlc Features " <br />L Eta ;? <br />Annua , prec i p t to t t on i s. between 12 .:and„ 15 inches . -:About Fia l f of ` <br />{ this comes ,.between Apr i i --1- and. September. .30Opt i mum -g row i ng <br />t y •; <br />season for native plants ' is April..to Jul W.inters'.a're-cold.?une <br />-:.. <br />aw average day temperature of 20 to 2S degrees F?sausuall 31. <br />arly July are usually .the dry. months. Spring <br />f - and e Y <br />very windy ; <br />3. . Native= (potential)-Vegetation <br />An open-stand of sagebrush and bitterbrus needh mixed with an abundance <br />June- <br />of such grasses as Indian ricegrass, le and rass', , and <br />grass,.squirreltail, native bluegrass, western wheaeatgtgra <br />basin wildrye. <br />This site is treeless. Optimum ground cover Is 25 percent. <br />Invaders on the site are the annual fescues, annual bromes, <br />pinyon, and juniper.