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• C3F c8aruche-Rombo complex, 35 <br />to 50 percent slopes <br />setting <br />Landform: Mountains <br />Position on landscape: <br />Mountainsides, backslopes <br />Elevation: 7,000 to 8,500 feet <br />Native plants: Grass, brush, <br />scattered trees <br />Air temperature: 42 to 46 <br />degrees F <br />Annual precipitation: 16 to 22 <br />inches <br />Frost-free period: 80 to 110 <br />days <br />Composition <br />Saruche soil and similar <br />inclusions: 45 percent <br />Rombo soil and similar <br />inclusions: 45 percent <br />Rock outcrop: 5 percent <br />Contrasting inclusions: 5 <br />percent <br /> <br />• Typical Profile <br />Saruche <br />Surface layer: <br />0 to 4 inches=channery silty <br />clay loam <br />Substratum: <br />4 to 16 inches=very shaly silty <br />clay loam <br />Bedrock: <br />16 to 60 inches=weathered shale <br />Rombo <br />Surface layer: <br />C to 4 inches=channery silty <br />clay loam <br />Subsoil: <br />4 to 24 inches=very shaly and <br />channery silty clay loam <br />24 to 34 inches=very shaly silty <br />clay loam <br />Bedrock: <br />34 to 60 inches=soft siltstone <br />and shale <br />• <br />5-1-h <br />8oi1 Properties and Qualities <br />Saruche <br />Parent material: Colluvium, <br />residuum <br />Depth class: Shallow <br />Drainage class: Well drained <br />Permeability: Slow <br />Available water capacity: Very <br />low <br />Potential rooting depth: 10 to <br />20 inches <br />Runoff: Very rapid <br />Hazard of water erosion: Very <br />high <br />Hazard of wind erosion: None <br />Carbonates: None <br />Rombo <br />Parent material: Colluvium, <br />residuum <br />Depth class: Moderately deep <br />Drainage class: Well drained <br />Permeability: Slow <br />Available water capacity: Low <br />Potential rooting depth: 20 to <br />40 inches <br />Runoff: Rapid <br />Hazard of water erosion: Very <br />high <br />Hazard of wind erosion: None <br />Carbonates: 0 to 4 inches <br />Contrasting Inclusions <br />Basalt dikes at the crest of <br />mountains <br />Major Current IIses <br />Livestock grazing, wildlife <br />habitat <br />Major Management Factors <br />Rangeland <br />Soil-related factors on this <br />unit: Water erosion, shallow <br />depth to bedrock, large stones <br />and cobbles, steepness of slope <br />Suitability: Fair <br />Dominant vegetation in the <br />potential plant community: Rocky <br />