Profile Number:  94    Series: TIDBITS                       

Location: SE1/4,NW1/4,SEC.24(15S,5E)15M SW COR.RS 18, H.J. ANDREWS E.F.

Classification: ANDIC DYSTROCHREPTS, MEDIAL, FRIGID                         
         Slope: 45 %
        Aspect: SW 
     Elevation: 3608 ft.
      Landform: PEDIMENT BACKSLOPE            
      Drainage: WELL DRAINED                  
   Parent Mat.: ALLUVIUM-COLLUVIUM FROM ANDESITE AND VOLCANIC ASH                               
    Vegetation: PSME/ACCI/WHMO COMMUNITY                                    
   Description: BROWN- REF. STAND 18, PIT 1, IBP INT. REP. 128 8-72           

   (Physical and chemical data listed below profile description)

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

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

A1  0 - 7 in.       Very dark brown (10YR2/2) when moist gravelly 
                    silt loam; moderate, fine granular structure; 
                    friable when moist, slightly sticky and 
                    slightly plastic when wet; 30% gravel, few 
                    shot; clear and smooth boundary.

B1  7 - 14 in.      Very dark brown (10YR2/2) when moist gravelly 
                    silt loam; weak, very fine subangular blocky 
                    structure; very friable when moist, slightly 
                    sticky and slightly plastic when wet; 25% 
                    gravel, few shot; clear and smooth boundary.

B2  14 - 21 in.     Very dark brown (10YR2/2) when moist gravelly 
                    loam; weak, fine subangular blocky structure; 
                    very friable when moist, slightly sticky and 
                    slightly plastic when wet; 20% gravel, few 
                    shot; gradual and smooth boundary.

C1  21 - 28 in.     Dark  brown (10YR3/3) when moist gravelly 
                    loam; massive structure; very friable when 
                    moist, slightly sticky and slightly plastic 
                    when wet; 30% gravel, few shot; clear and 
                    wavy boundary.

2C2  28 - 41+ in.   Matrix of gray (10YR5/1)  and mottles of 
                    brown (7.5YR4/2) when moist saprolitic 
                    andesite bedrock.


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 - 7     0.9   34.0  57.8   8.2                                             
  B1     7 - 14                                                                       
  B2    14 - 21    1.0   38.8  55.2   6.0                                             
  C1    21 - 28    1.0   37.9  55.8   6.4                                             
  2C2   28 - 41+                                                                      
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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 - 7     5.4     7.4   0.23   17.7   21.0   0.5    5.4  1.1             
  B1     7 - 14    5.7     4.2   0.17    6.9   19.8   0.4    3.0  0.7             
  B2    14 - 21    5.6     1.8   0.12    3.8   22.8   0.4    4.0  0.6             
  C1    21 - 28    5.7     1.9   0.10    1.9   20.4   0.3    3.4  0.9             
  2C2   28 - 41+                                                                  
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