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:{ <br />a` <br />.~.. -pN! <br /> <br /> <br />.-1 <br />TED STATES DEPARTMENT OF AGRICULTURE <br />Technical Guide RANGE SITE N0. 238 <br />Section II E Field Office <br />nuyust 1975 <br />~• RANGE SITE DESCRIPTION <br />.. for <br />BRUSHY LOAM <br />Land Resource Area: Southern Rocky Mountains (48) <br />A.' PHYSICAL CHARACTERISTICS <br />,~, 1. Pliyslographic Features ' <br />.L, <br />~ <br /> This site occupies on gently rolling to steep upland slopes. <br />~~:..~' Degree of slope ranges from 3 to 65$. Direction of slope <br /> ranges from north and east to south and west as the elevation <br /> Increases. Elevation ranges from 6000 feet to 9000 feet above <br /> sea level. <br />~~'' 2. Climatic Features <br /> Annual precipitation ranges from 15 to 20 inclics. At least half <br />• of the annual precipitation is in the form of snow. Optimum <br /> growing season for native plants is mid-May to mid-July, Winters <br /> are typically cold, Range forage plants are favored by spring <br /> moisture from accumulated snow. June and July are usually the <br /> dry months during the growing period, <br /> 3. Native (potential) Vegetation <br /> The aspect of [his site is a shrub dominated community. Service- <br />• - berry and oakbrush are the major brush species. Snowberry, choke- <br /> cherry, and rose are the other principal shrub species. About <br /> • 50 to 60 percent of the annual production is made up of grasses. <br /> Nodding brume, mountain brume, slender wheat, western wheat, and <br /> Letterman and Columbia needlegrasses are the major grass species <br />' on this site. Elk sedge, generally, is the most frequently <br /> occurring plant. Major forb species include aspen peavine, flea- <br />., bane, western yarrow, American vetch, and lupine. Additional plants <br /> present on this site Include oniongr;~ss, big sagebrush, geranium, <br /> and low larkspur. <br /> This site is generally treeless, except for possibly a few scattered <br /> aspen, which havu little or no market value. Optimum ground cover <br /> Is 60$. <br />