Profile Number:  68    Series: BLUE RIVER                    

Location: NW1/4,SE1/4,SEC.7(15S,6E)15MENE OF THER-RS 6, H.J. ANDREWS E.F.

Classification: TYPIC HAPLUMBREPTS, LO-SKEL, MIXED, FRIGID                  
         Slope: 50 %
        Aspect: NW 
     Elevation: 4461 ft.
      Landform: SMOOTH SLOPE                  
      Drainage: WELL DRAINED                  
   Parent Mat.: ALLUVIUM-COLLUVIUM FROM BASIC IGNEOUS ROCKS AND VOLCANIC ASH                    
    Vegetation: TSHE-ABAM/ACCI/ACTR ASSOCIATION                             
   Description: BROWN- SOIL CD4 IN THESIS 6-72           

   (Physical and chemical data listed below profile description)

O11  1 - 0.5 in.     Needles, twigs, cones, etc. (L).

O12  0.5 - 0 in.     Partly decomposed needles, twigs, etc. (F).

A1  0 - 10 in.      Dark  brown (10YR3/3) when dry, dark brown 
                    (7.5YR3/2) when moist gravelly silt loam; 
                    weak, very fine to fine granular structure; 
                    very friable when moist, slightly sticky and 
                    slightly plastic when wet; 25% gravel and 
                    cobbles, common pumice grains; clear and wavy 
                    boundary.

A3  10 - 18 in.     Dark yellowish brown (10YR4/4) when dry, dark 
                    yellowish brown (10YR3/4) when moist cobbly 
                    silt loam; weak, very fine to fine granular 
                    structure; very friable when moist, slightly 
                    sticky and slightly plastic when wet; 35% 
                    cobbles and gravel, common pumice grains; 
                    abrupt and wavy boundary.

2B1  18 - 26 in.    Yellowish brown (10YR5/4) when dry, brown 
                    (7.5YR4/4) when moist cobbly silty clay loam; 
                    weak, very fine subangular blocky structure; 
                    very friable when moist, sticky and plastic 
                    when wet; 40% cobbles, common pumice grains; 
                    gradual and wavy boundary.

2B2  26 - 35 in.    Yellowish brown (10YR5/4) when dry, brown 
                    (7.5YR4/4) when moist cobbly silty clay loam; 
                    weak, fine subangular blocky structure; very 
                    friable when moist, sticky and plastic when 
                    wet; 40% cobbles and stones, common 
                    pumice,few charcoal; gradual and wavy 
                    boundary.

2B3  35 - 45 in.    Yellowish brown (10YR5/4) when dry, brown 
                    (7.5YR4/4) when moist cobbly silty clay loam; 
                    weak, very fine to fine subangular blocky 
                    structure; friable when moist, sticky and 
                    plastic when wet; 45% cobbles, gravel and 
                    stones, common pumice,few charcoal; gradual 
                    and wavy boundary.

2C  45 - 49+ in.    Yellowish brown (10YR5/4) when dry, brown 
                    (7.5YR4/4) when moist cobbly silty clay loam; 
                    massive structure; friable when moist, sticky 
                    and plastic when wet; 50% cobbles, stones, 
                    and gravel, common pumice grains.


Physical Profile Data

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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 - 10    0.5   42.7  50.7   6.6                                             
  A3    10 - 18    0.7   45.7  32.0   4.2                                             
  2B1   18 - 26    0.9   43.1  53.1   3.8                                             
  2B2   26 - 35    0.9   35.8  57.4   6.8                                             
  2B3   35 - 45    0.9   36.0  55.6   8.4                                             
  2C    45 - 49+   0.9   37.8  55.5   6.7                                             
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Chemical Profile Data

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Horizon  Depth     Ph     O.M. Total N    P     CEC    K     Ca    Mg    Na    Base Sat.   
          (in)            (%)    (%)    (ppm)  --------------  meq/100g ----------------- 
-----------------------------------------------------------------------------------------
  A1     0 - 10    5.4     9.2   0.26    5.6   29.9   0.2    0.5  0.2   0.2      3
  A3    10 - 18    5.5     6.7   0.24    4.5   34.6   0.2    0.1  0.0   0.2      1
  2B1   18 - 26    5.6     3.9   0.14    2.1   27.8   0.1    0.0  0.0   0.2      1
  2B2   26 - 35    5.4     2.4   0.11    1.5   34.6   0.1    0.0  0.1   0.2      1
  2B3   35 - 45    5.4     1.9   0.09    0.9   32.4   0.2    0.4  0.6   0.2      4
  2C    45 - 49+   5.4     2.7   0.10    1.4   34.4   0.2    0.4  0.1   0.3      3
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