Profile Number:  69    Series: BLUE RIVER                    

Location: NW1/4,NE1/4,SEC.14(15S,5E)22M NE SWCOR.RS 11, H.J. ANDREWS E.F.

Classification: ANDIC DYSTROCHREPTS, MEDIAL-SKEL, FRIGID                    
         Slope: 37 %
        Aspect: NE 
     Elevation: 3214 ft.
      Landform: UNEVEN SLOPE                  
      Drainage: WELL DRAINED                  
   Parent Mat.: ALLUVIUM-COLLUVIUM FROM BASIC IGNEOUS ROCKS AND VOLCANIC ASH                    
    Vegetation: PSME/ACCI/BENE ASSOCIATION                                  
   Description: BROWN- SOIL EF1 IN THESIS 8-72           

   (Physical and chemical data listed below profile description)

O11  2 - 1.5 in.     Needles, twigs, cones, etc. (L).

O12  1.5 - 0 in.     Partly decomposed needles, twigs, etc. (F).

A1  0 - 5 in.       Dark  brown (10YR3/3) when dry, very dark 
                    brown (10YR2/2) when moist gravelly loam; 
                    weak, very fine to fine granular structure; 
                    very friable when moist, slightly sticky and 
                    slightly plastic when wet; 25% gravel, few 
                    pumice gravel, abundant charcoal; clear and 
                    wavy boundary.

B1  5 - 12 in.      Dark yellowish brown (10YR4/4) when dry, dark 
                    brown (7.5YR3/2) when moist gravelly loam; 
                    weak, very fine to fine granular structure; 
                    very friable when moist, slightly sticky and 
                    slightly plastic when wet; 25% gravel, few 
                    pumice gravel, few charcoal; gradual and wavy 
                    boundary.

B2  12 - 24 in.     Dark yellowish brown (10YR4/4) when dry, dark 
                    brown (7.5YR3/2) when moist gravelly loam; 
                    weak, very fine subangular blocky breaking to 
                    granular structure; very friable when moist, 
                    slightly sticky and slightly plastic when 
                    wet; 30% gravel and cobbles, common pumice 
                    grains; gradual and wavy boundary.

B3  24 - 36 in.     Dark yellowish brown (10YR4/4) when dry, with 
                    matrix of dark brown (7.5YR3/2) and mottles 
                    of dark  brown (10YR3/3) and dark reddish 
                    brown (5YR3/4) when moist gravelly loam; 
                    weak, very fine granular structure; very 
                    friable when moist, slightly sticky and 
                    slightly plastic when wet; 45% gravel and 
                    cobbles,common pumice,few charcoal; gradual and smooth boundary.

2C  36 - 48+ in.    Dark yellowish brown (10YR4/4) when dry, with 
                    matrix of dark brown (7.5YR3/2) and mottles 
                    of dark  brown (10YR3/3) and dark reddish 
                    brown (5YR3/4) when moist very gravelly loam; 
                    massive structure; very friable when moist, 
                    slightly sticky and slightly plastic when 
                    wet; 60% gravel and cobbles, 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 - 5     0.8   57.8  35.4   6.8                                             
  B1     5 - 12    0.9   62.5  32.6   4.9                                             
  B2    12 - 24    0.9   60.4  35.5   4.1                                             
  B3    24 - 36    0.9   62.6  33.7   3.7                                             
  2C    36 - 48+   0.9   63.4  33.5   3.1                                             
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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 - 5     5.7     5.2   0.23    4.6   21.2   0.5    5.5  0.5   0.2     24
  B1     5 - 12    5.7     3.4   0.13    5.5   20.0   0.3    0.1  0.1   0.2      4
  B2    12 - 24    5.4     1.9   0.13    1.9   20.1   0.4    1.6  0.6   0.3     12
  B3    24 - 36    5.4     2.2   0.10    1.7   27.3   0.5    2.1  0.7   0.3     12
  2C    36 - 48+   5.2     0.9   0.04    4.1   26.6   0.4    4.0  2.2   0.4     21
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