Profile Number:  81    Series: FRISSELL                      

Location: SE1/4,NW1/4,SEC.34(15S,5E), H.J. ANDREWS E.F.

Classification: TYPIC DYSTROCHREPTS, LO-SKEL, MIXED, MESIC                  
         Slope: 15 %
        Aspect: W  
     Elevation: 2952 ft.
      Landform: PEDIMENT BACKSLOPE            
      Drainage: WELL DRAINED                  
   Parent Mat.: ANDESITIC ALLUVIUM-COLLUVIUM OVER SILTY MATERIAL                                
    Vegetation: TSHE-ABAM/RHMA/BENE ASSOCIATION                             
   Description: BROWN- REF. STAND 5, PIT 2, IBP INT. REP. 128 7-72           

   (Physical and chemical data listed below profile description)

O11  4 - 3.5 in.     Twigs, needles, cones, etc. (L).

O12  3.5 - 0 in.     Partly decomposed needles, twigs, etc. (F).

A1  0 - 6 in.       Dark brown (7.5YR3/2) when moist gravelly 
                    silt loam; weak, very fine granular 
                    structure; very friable when moist, nonsticky 
                    and slightly plastic when wet; 25% gravel, 
                    few pumice gravel and charcoal chips; clear 
                    and wavy boundary.

B1  6 - 15 in.      Brown (7.5YR4/4) when moist gravelly silt 
                    loam; weak, very fine to fine granular 
                    structure; friable when moist, slightly 
                    sticky and slightly plastic when wet; 35% 
                    gravel and cobbles, few pumice grains; 
                    gradual and wavy boundary.

B21  15 - 19 in.    Brown (7.5YR4/4) when moist gravelly silt 
                    loam; weak, very fine subangular blocky 
                    structure; friable when moist, slightly 
                    sticky and plastic when wet; 40% gravel and 
                    cobbles, few pumice grains; gradual and wavy 
                    boundary.

B22  19 - 28 in.    Brown (7.5YR4/4) when moist very gravelly 
                    silt loam; weak, very fine to fine  
                    structure; friable when moist, slightly 
                    sticky and plastic when wet; 50% gravel, few 
                    pumice grains; gradual and wavy boundary.

2B3  28 - 36 in.    Brown (7.5YR4/4) when moist gravelly silt 
                    loam; weak, very fine subangular blocky 
                    structure; friable when moist, slightly 
                    sticky and slightly plastic when wet; 35% 
                    gravel, few pumice gravel and charcoal chips; 
                    clear and smooth boundary.

2C  36 - 45+ in.    Brown (7.5YR4/4) when moist gravelly silt 
                    loam; massive structure; very friable when 
                    moist, slightly sticky and slightly plastic 
                    when wet; 35% gravel, common pumice gravel, 
                    few charcoal.


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 - 6     0.6   37.8  48.1  14.1                                             
  B1     6 - 15                                                                       
  B21   15 - 19    0.8   24.6  49.7  25.7                                             
  B22   19 - 28                                                                       
  2B3   28 - 36                                                                       
  2C    36 - 45+   0.8   40.1  49.3  10.6                                             
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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 - 6     5.1     7.7   0.16   23.1   26.0   0.4    1.3  0.8             
  B1     6 - 15    5.2     2.9   0.11   16.9   24.5   0.4    1.4  0.7             
  B21   15 - 19    5.3     2.2   0.10   18.3   26.3   0.5    4.0  1.4             
  B22   19 - 28    5.1     2.2   0.08    6.3   26.4   0.5    3.8  1.6             
  2B3   28 - 36    5.4     1.2   0.05    1.9   26.6   0.3    3.0  1.8             
  2C    36 - 45+   5.6     1.2   0.04    1.8   30.4   0.3    1.6  2.1             
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