Profile Number:  76    Series: FRISSELL                      

Location: NW1/4,SW1/4,SEC.6(16S,5E),8M NNE SW COR.RS 1, H.J. ANDREWS E.F.

Classification: TYPIC DYSTROCHREPTS, LO-SKEL, MIXED, MESIC                  
         Slope: 60 %
        Aspect: SW 
     Elevation: 1607 ft.
      Landform: SMOOTH SLOPE                  
      Drainage: WELL DRAINED                  
   Parent Mat.: RED TUFFS AND BRECCIAS                                                          
    Vegetation: PSME/HODI ASSOCIATION                                       
   Description: BROWN- REF. STAND 1, PIT 1, IBP INT. REP. 128 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 - 6 in.       Matrix of dark brown (7.5YR3/2)  and mottles 
                    of dark reddish brown (5YR3/3) when moist 
                    very gravelly loam; moderate, fine to medium 
                    granular structure; soft when dry, very 
                    friable when moist, slightly sticky and 
                    slightly plastic when wet; 55% gravel; clear 
                    and wavy boundary.

A3  6 - 17 in.      Dark reddish brown (5YR3/4) when moist very 
                    gravelly loam; weak, very fine to fine 
                    subangular blocky structure; soft when dry, 
                    very friable when moist, slightly sticky and 
                    slightly plastic when wet; 55% gravel; clear 
                    and smooth boundary.

B1  17 - 29 in.     Reddish brown (5YR4/5) when moist very 
                    gravelly loam; weak, very fine subangular 
                    blocky structure; soft when dry, very friable 
                    when moist, slightly sticky and slightly 
                    plastic when wet; 55% gravel, few pumice 
                    grains; clear and smooth boundary.

B2,3  29 - 52 in.   Reddish brown (5YR4/5) when moist very 
                    gravelly loam; weak, very fine subangular 
                    blocky structure; soft when dry, very friable 
                    when moist, slightly sticky and slightly 
                    plastic when wet; 55% gravel, few pumice 
                    grains; clear and smooth boundary.

C  52 - 61 in.      Reddish brown (5YR4/5) when moist very 
                    gravelly loam; massive structure; soft when 
                    dry, very friable when moist, slightly sticky 
                    and slightly plastic when wet; 60% gravel, 
                    few pumice grains; gradual and smooth 
                    boundary.

2R  61 - 72+ in.     Highly fractured red breccia 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 - 6     0.9   49.3  34.1  16.6                                             
  A3     6 - 17                                                                       
  B1    17 - 29                                                                       
  B2,3  29 - 52    0.9   58.1  33.5   8.4                                             
  C     52 - 61    0.9   51.6  39.7   8.7                                             
  2R    61 - 72+                                                                      
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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     6.8     6.8   0.21    9.0   23.5   0.3    9.1  1.2             
  A3     6 - 17    5.9     3.6   0.09    6.0   18.0   0.2    6.6  1.0             
  B1    17 - 29    5.8     1.5   0.07    5.7   16.2   0.1    4.5  0.9             
  B2,3  29 - 52    5.8     1.2   1.05    6.9   15.4   0.1    6.0  1.0             
  C     52 - 61    5.8     0.8   0.04    3.1   18.9   0.1    9.4  2.1             
  2R    61 - 72+                                                                  
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