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C~_x• ~ <br />Tlie fol Lowirtq ird'on:retion was furnished by Soil Coruen.itian Ser- <br />~•ice persumci Dervtie Davidson, District Conser.ntianist, anti Ale. <br />F.:rrot after a site visit on May 22, 198.1• <br />Soils <br />'(he soils unit mapped at the project site is 22D. This mapping <br />unit consists of shallow, dark, loeay soils. They are gravelly <br />and cobhly an the surface and throtygttart the profile. These soils <br />occur an gs:tlvy alapirrg to strongly sloping slopes. They have de- <br />veloped an gravelly and cabbly outweah matorials. They take water <br />well, but have a limited water holding capacity because of the hio,.Ji <br />content of gravel aryl cobble. <br />Climrtic Infontation <br />the elevatlan ~s from approximately 9,000 to 10,400 feet. The <br />annual precipitation avsrggee between 12 to 17 inches. Minimal <br />winter srtowrcover results in low available moisture. for spring and <br />early~sunmer growth of cool season plants. Rains during late July <br />:u~d Aug.:st appear r-ornrl for the Montane climatic zone. Optimum <br />~rowi nys xa_~on for native plants is 70 to 9U days with a mean anneal <br />t~,erutvre of 37 to 40 degrees F. <br />i1]tl~'2 \reQetatlon <br />aspect of tries site is a grassland. However, tlus t,ecomes a shrub <br />anrw:~l grass aspect wltfi a decline in ragge condition. Mizana <br />rescue, Matt and Rlrtg Mthly, Jiategrass, Fringed Sage arcl Cinquefoil <br />are dominant on the. site. Other grasses end fobs inclyde Bluegrass, <br />ferry Oat, Seetge, Snakeweed, Western Wheatgrass, Western Yarrow, and <br />Pirc~ra. Stuvbe intrude Wlnterfat, low Rabbitbr~sh and shrubby Po- <br />tec:ti].la. Native vegetation found at this site and estimated species <br />curipositian are: <br />Mizuna Fescue 30g Cinquefoil 8X Western Wheatgra58 S!. <br />hl:ii.t & Ring Muhly 1S% Sedge 54 Perry Oat 2;G <br />FrirVVed Ssge 15'X, Snakeweed 5'1: <br />.JIUk:3r335 lOJfi Blueigass s'~ total 10(7L <br />