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<br />UNITED STATES DEP~MENT OF AGRICULTURE 99g
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<br />SOIL CONSERVATION SERVICE ,
<br />ifonte Vista Field Office, Box 390, 1;onte Vista, Cola. t31Url~ '
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<br />October G, 19F30
<br />A•i11 1•?filler ed
<br />P.io Grande Co. Attorney d'
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<br />P, o, Box 396 IS.
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<br />Del Norte, Colo, Sll32 ia,
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<br />Dear Dill, he
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<br />The following is the material you requested concerning the seven gravel rk
<br />pits the county uses. _.k•
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<br />Del Norte Pit -The soils at this site are tlortr-Pu,tul caraplex, Dunul
<br />cobbly sandy loam and Derrick cobbly loam. Petail.ed descriptions are er
<br />attached. All of these soils ha•re very little gnrxi tc~psoi.l ac can be he
<br />noted by the sparse vegetation adjacent tc the nits. This is al^,o due or
<br />to the very low annual precitation in the area. '°his pit is surrounded
<br />by r.•urgelasd, The native vegetation adjacent tr, the pit consists of n,
<br />rabbitbrus},, kochia, ,•ussian thistle, squirrel tail, sunflower, daisy, :st
<br />blue grana, sleapygrass, pigcreed, and prickly pear ~a=tus, In the very
<br />bottom of the pit where moisture content .is h.iri,, xi].lows arr. present. ,I}'
<br />A°. fzr as a recl,vnation plan, when this pit is no louger• used, I would
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<br />recommend that side slopes ~f 3:1 or flatter h!~}a•~~vided. I fee.] the ~
<br />elp
<br />chances of reseeding and getting a stand are about s:cro. The annual 1e
<br />i~recitation in this area is about 3 inches end i.:; not enough to guarentee nd,
<br />a stand. 'd'
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<br />fiarrison Pit -Soils are Dunul cobbly sandy loarn.znd .'forte gravelly dy
<br />sand lolni. Pescri bons are attached. This
<br />Y P pit i :: ;surrounded by 1e°
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<br />cultivated land. Vegetation consists of sunflowers, kochia, pigweed, nt.
<br />ntillnveed, sxeetclover and alsike clover, Reclamation: Same its Del 1lorte.
<br /> :el
<br />mile Plazp Pit -Soils are Garita coY,bly loew~ nmi Typic Torrifluvents, ial
<br />Descriptions are attached, This pit is local,ecl near the Rio Grande in re
<br />ed
<br />a riverbottom situation. Vegetation consists of lndian ricegrass, nt
<br />prickly pear cactus, kochia, rabbithrush, blue grruiat, Sanrl dropseed,
<br />sage, squirrel tail, and vr_rrter fat. 3ecl.amat.ion: dope sides to 3:1
<br />or flatter. These soils have a fluctuating watert:tble artd are moderately or
<br />~!lka] fine, Revet;etation should include 131ue gra,n:i arul Inte,mediate 's'
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<br />wheatgrass on the drier sites and hJestern wheatJ;rass vul smooth brome -1
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<br />un the wetter sites.
<br />~vulere_on Pit -;;oils: Typic Torrifluvents, Descri,ptiun +tttached.
<br />This I+it i.s located in a ri4erhottor~, situation. V,;Letation Fu•esent
<br />~ includes: bluegrass, .cottonwoods, koc}lia, willows, sc:dt;es, rushes,
<br />russian thistle. Reclamation: Satne as 7 ntile l~lazcl r~it,
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<br />r•~nirnl m gra vrl an0 rn nubs m Ine A nnnzon ra ages tram
<br />3a l0 50 7•!•rccnl and from 35 l0 70 p•rrent in the B horizon.
<br />I!rpth to lime, ranges fz_pm 8 l0 30.inrhes..
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