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<br /> <br />• The Juniper-Pinyon vegetation type also tends to occur on <br /> soils of Mapping Unit Xh'10-F (Lazear-Rock outcrop crn~plex, 12 to Fi5 <br />percent slopes) which have primarily a southern exposure. The soils <br />(Iazear and nu.uor inclusions) are shallow, well drained, and medium <br />textured. The soils' surface layers are brown stony loarns to light <br />yellowish brown loam~s to a depth of approximately 9 inches. The <br />underlying material is very pale brown loam that overlies sandstone <br />bedrock between 15 and 2G inches. These soils occur on moderate steep <br />to steep upland mesas. <br />This stand of Juniper-Pinyon is mare typical of the vegetation <br />described by the Soil Conservation Service in the Rock Foothills range <br />description. A stand of Pinyon and Juniper with a patchy understory of <br /> sluvbs and grasses is typical of the sites; however, a change in <br />• exposure (dense Iountain Shrub) does produce changes in vegetation. <br />The list of species and maximum allovrdble perroent compositions <br />are listed in the Mountain Sluvb section due to both vegetation types <br />being described as Rock Foothills range site. <br />POP1D1~1(}SA PINli Ah'D I~L'~LAS-FIk <br />The Ponderosa Pine and Gbuglas-Fir community occurs on the <br />northern exposures of the moderately steep to steep upland mesa in moist <br />areas sroh as drainage bottoms. This comuunity has extended down from <br />its riorr,~al rouge into the lower Mountain Shrub community following moist <br />soils. 1'he dominants of the cannnmity are Ponderosa Pine (Pinus <br />ponderosa) and Douglas-Fir (Pseudot~a menziesii). <br />- 7 - <br />