Profile Number: 64 Series: FRISSELL Location: NW1/4,SE1/4,SEC.31(15S,5E),50 M NW OF RD.149D, H.J. ANDREWS E.F. Classification: FLUVENTIC EUTROCHREPTS, LO-SKEL, MIXED, MESIC Slope: 18 % Aspect: NE Elevation: 1479 ft. Landform: ALLUVIAL-COLLUVIAL FAN Drainage: WELL DRAINED Parent Mat.: FAN ALLUVIUM-COLLUVIUM Vegetation: TSHE/ACCI/GASH ASSOCIATION Description: BROWN- SOIL AB5 IN THESIS 8-73 (Physical and chemical data listed below profile description) O11 2.5 - 1.5 in. Leaves, needles, twigs, etc. (F). O12 1.5 - 0 in. Partly decomposed leaves, twigs, etc. (F). A1 0 - 4 in. Yellowish brown (10YR5/4) when dry, with matrix of dark brown (7.5YR3/2) and mottles of brown (7.5YR4/4) when moist very gravelly loam; strong, very fine to fine granular structure; very friable when moist, slightly sticky and slightly plastic when wet; 50% gravel, common charcoal chips; clear and wavy boundary. B2 4 - 13 in. Brown (7.5YR5/4) when dry, brown (7.5YR4/4) when moist gravelly clay loam; strong, very fine to fine subangular blocky structure; friable when moist, sticky and slightly plastic when wet; 40% gravel, few charcoal chips; clear and wavy boundary. 2B3 13 - 20 in. Yellowish brown (10YR5/4) when dry, brown (7.5YR4/4) when moist gravelly clay loam; moderate, very fine to fine subangular blocky structure; friable when moist; 25% gravel and cobbles; gradual and wavy boundary. 2C1 20 - 37 in. Light yellowish brown (10YR6/4) when dry, with matrix of brown (7.5YR4/4) and mottles of strong brown (7.5YR5/6) and reddish yellow (7.5YR6/6) when moist very gravelly clay loam; massive structure; friable when moist, sticky and plastic when wet; 55% gravel and cobles; gradual and wavy boundary. 2C2 37 - 46+ in. Light yellowish brown (10YR6/4) when dry, with matrix of brown (7.5YR4/4) and mottles of yellowish red (5YR4/6) and reddish yellow (7.5YR6/6) when moist very stony clay loam; massive structure; friable when moist, sticky and plastic when wet; 60% gravel and cobbles. Physical Profile Data ----------------------------------------------------------------------------------------- Horizon Depth Density Sand Silt Clay Percolation Moisture Tension (% H2O, dry wt.) (in) (g/cc) (%) (%) (%) (in/hr) 1/3 atm 1 atm 5 atm 15 atm ----------------------------------------------------------------------------------------- A1 0 - 4 0.7 36.9 41.4 21.7 B2 4 - 13 0.8 37.9 40.5 21.6 2B3 13 - 20 1.1 30.5 46.2 23.3 2C1 20 - 37 0.9 34.4 43.6 22.0 2C2 37 - 46+ 0.9 32.2 43.5 24.3 ----------------------------------------------------------------------------------------- Chemical Profile Data ----------------------------------------------------------------------------------------- Horizon Depth Ph O.M. Total N P CEC K Ca Mg Na Base Sat. (in) (%) (%) (ppm) -------------- meq/100g ----------------- ----------------------------------------------------------------------------------------- A1 0 - 4 5.2 7.3 0.15 18.7 31.6 1.0 19.6 3.9 0.2 53 B2 4 - 13 5.4 4.7 0.13 8.2 27.9 0.8 10.8 2.8 0.2 52 2B3 13 - 20 5.8 1.0 0.05 1.4 28.4 1.0 16.0 4.9 0.2 78 2C1 20 - 37 5.7 0.9 0.05 0.9 31.7 0.9 16.8 6.2 0.3 76 2C2 37 - 46+ 5.6 0.1 0.02 3.6 31.4 0.6 16.8 6.7 0.3 31.4 -----------------------------------------------------------------------------------------