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~/81 <br /> <br />C3F-Midnight-Ranbo cariplex, 35 to 50 percent slopes. ThLS ra~~ <br />unit is on mountainsides below casalt dikes. T`e native vegetar.ion .is <br />a rass, brush, and a few widely spaced trees. Elevation is 7,000 to 8,300 <br />feet. The average dMUal "%C°C1pltat.Lal is about ld to 23 inches, the <br />average annual air *_e!^E~rature is 42 tc vii ciegenes :. and trK a•:cray? <br />Frost-free sensor. .is SC *.0 1C5 davs. <br />This unit is 45 percent 'tidn.taht channerr clay loam and 45 percent <br />!-~^,bo channery silty cl_f lea.:.. Tt~ ?'idni?^*_ soil is rear t!~? tor_ of <br />mountaiinsides adjacent to ba_=alt d.i.ties. :h? FLcrx loll is cn t!;e lo~.er <br />Dart of mountainsides. <br />Included in *_hLS unit are basalt dikes at the crest cf mcuntatns. Also <br />included a m small areas of Rock outctoo on the loser side slope=_. <br />• The tidnight soil is shallow and well trained. It fcrned to tesL~luum <br />and colluvl;n~ derived daninantly fran s:vle. ?lrically, the sumac= layer <br />Ls ci~anner~ stlty clay loam inches thick. T`.e su~sur5ace la•.<r Ls '-erv <br />shaly silty clay loam 12 inches thick. F:eathPted shale .is a*_ a depth o£ l6 <br />inches. In sang atlas the surface layer is fiagrnJ clay lcam. The soil is <br />neutral. The =_hale oe-rxk is calcareous ~c:.eer. the seams. <br />Petmeabil.ity of t:~? ;lidnicht sots is morierately slew. Availaole water <br />caF.acity is very Low. ~.`fecti:•e rooting depth is lu" tc 20 inches. Punoff <br />is 'JeLV r3pLd, and the ;c73rd of water ?C~?SL:>f: is Ver'J h1gh. <br />• <br />200 <br />