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ADVAM COPY ACT TO awn <br /> Guffey Series <br /> [( Depth class: Moderately deep - <br /> Drainage class: Well drained <br /> C Parent material: Colluvium, residuum from granite <br /> Landscape position: Mountainsides <br /> Slope: 5 to 50 percent <br /> Average annual precipitation: 15 to 20 inches <br /> Average annual air temperature: 38 to 42 degrees F <br /> Taxonomic class: Loamy-skeletal, mixed Typic Cryoboralfs <br /> Typical Pedon <br /> Guffey very gravelly coarse sandy loam in an area of Guffey-Raleigh <br /> complex, 5 to 50 percent slopes, about 1, 050 feet east and 1,200 <br /> feet north of the southwest corner of Sec. 29, T. 13 S. , R. 70 <br /> W. <br /> Oe=1 to 0 inch; intermediately decomposed fir litter. <br /> E1=0 to 7 inches; pale brown (10YR 6/3) very gravelly coarse sandy <br /> loam, brown (10YR 4/3) moist; weak very fine subangular blocky <br /> iL structure; soft, very friable, slightly sticky, and slightly plastic; <br /> 55 percent gravel; neutral; clear smooth boundary. <br /> E2=7' to 12 inches; pale brown (10YR 6/3) very gravelly sandy loam, <br /> brown to dark brown (10YR 4/3) moist; weak fine subangular blocky <br /> structure; soft, very friable, nonsticky, and nonplastic; 35 percent <br /> gravel; neutral; clear smooth boundary. <br /> Bt=12 to 26 inches; brown (7.5YR 5/4) very gravelly sandy clay <br /> loam, strong brown (7,5Y_R 4/6) moist; ;,oak medium prismatic structure, <br /> parting to moderate medium subangular blocky; common distinct clay <br /> F films on faces of peds and in pores; 50 percent gravel; neutral; <br /> fl abrupt wavy boundary. <br /> Cr=26 inches; partially decomposed granite. <br /> R=41 inches; granite <br /> Range in Characteristics <br /> Thickness of the solum: 20 to 40 inches <br /> Depth to bedrock: 20 to 40 inches <br /> Content of gravel in the E and Bt horizons: 35 to 85 percent <br /> Hue: 10YR or 7. 5YR <br /> Reaction: strongly acid to neutral <br /> ! Gravel is dominantly subangular pebbles (grus) 2mm to 1/2-inch in <br /> t diameter <br /> A horizon: <br /> Texture=very gravelly coarse sandy loam, very gravelly sandy loam <br /> Bt horizon: <br /> Texture=fine-earth fraction is sandy clay loam, sandy loam, clay <br /> loam <br /> C horizon: <br /> Reaction=moderately acid to neutral <br /> Texture=fine-earth fraction is sandy loam, coarse sandy loam, loamy <br /> coarse sand <br /> L <br />