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.-- _. _.--. 2.04.9 Page 22 of 46 Ilic Ronibo soil is moderately deep and yell drained. It formed in ~ .~ colluvlum and ruslduum durivcd dominontly from shale and eiltetone. • ~ ~ Typically the surface layer is channery clay loam. The subaoll to a depth of 38 itic}ies is channery clay loam. Weathered slate, sil[ntone, and coal is nt a depth of 38 inches. The soil is slightly acid. Depth co bedrock ranges from 20 to 40 inches. i Pcrmcab111ty of the Rombo soil is moclr rate ly slow. Avail. able vate: capacity is moderate.' Effective rooting depth is 20 to r.0 inches. Runoff is very rapid and the hazard of water erosion i.s very high. the Travessilla soil is shallow and yell drained. IC formed in residuun derived dominantly from sandstone. Typically the so11 is channery loam over sandstone bedrock at a depcli of 13 inches. The soil is moderately ,,ll:aline and calcareous. Depth to san,stone is 10 to 20 incises. Petwcability of the Travessilla soil is moderately rapid. Available ~.: at rr ra p: n:i Ly '. .: vc ry 1ov, li((~:r l'iv,. roniing d,:p tb is 10 Cu 'LO iucL cs. :;ur,ofi is very rapid and the hazard of v.tcer erosion is very hi;•it. '1-n is ~u:i[ is useu for livestoc4: gr;,ring .nnd ~.+a odland. The potential plant community un the l.ouvicrs and Travessilla soils is ::vainly pin;^n :;nd ju^ioer •.:ich :~^ c.nderstorv of Indian e'icrgr.as, sic~~oa is gr.: u:a, e:ucton grass, and ]stele hluc5 ce m. '1'i~u awe r; ~c an~~al ;, r, duCLion o? .._:-,i ry ve ~,~..,; i.on _., :00 noun,l:; per ::c ro. L` c'nc c.; r:<L"cion „_ cat unit ..~LC;ior:t~s, pinyon, juni,~•tr, C::;;~ocl oak, and :rino~d sagebrush increase. 8ccepness of slope limits access by livestock and promotes over- gracing of the less sloping areas. 'Trails or valk~ays can be constructed in places to encourage livestock gracing in areas where access is limited. •