Profile Number:  80    Series: BLUE RIVER                    

Location: NW1/4,SE1/4,SEC.7(15S,6E)15M ENE THERM.RS 4, H.J. ANDREWS E.F.

Classification: TYPIC HAPLUMBREPTS, LO-SKEL, MIXED, FRIGID                  
         Slope: 50 %
        Aspect: W  
     Elevation: 4264 ft.
      Landform: SMOOTH PEDIMENT BACKSLOPE     
      Drainage: WELL DRAINED                  
   Parent Mat.: ALLUVIUM-COLLUVIUM AND/OR GLACIAL TILL (ANDESITE)                               
    Vegetation: ABAM/TIUN ASSOCIATION                                       
   Description: BROWN- REF. STAND 4, 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 - 10 in.      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, shot; clear and wavy boundary.

A3  10 - 18 in.     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,gravel and shot; abrupt and 
                    wavy boundary.

2B1  18 - 26 in.    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, stones and 
                    gravel, common pumice grains; gradual and 
                    wavy boundary.

2B2  26 - 35 in.    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, stones and gravel, 
                    common  pumice, few charcoal; gradual and 
                    wavy boundary.

2B3  35 - 45 in.    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.    Brown (7.5YR4/4) when moist very 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

-----------------------------------------------------------------------------------------
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   36.7  56.7   6.6                                             
  A3    10 - 18                                                                       
  2B1   18 - 26                                                                       
  2B2   26 - 35    0.8   30.2  63.0   6.8                                             
  2B3   35 - 45                                                                       
  2C    45 - 49+   0.8   27.9  65.4   6.7                                             
-----------------------------------------------------------------------------------------

Chemical Profile Data

-----------------------------------------------------------------------------------------
Horizon  Depth     Ph     O.M. Total N    P     CEC    K     Ca    Mg    Na    Base Sat.   
          (in)            (%)    (%)    (ppm)  --------------  meq/100g ----------------- 
-----------------------------------------------------------------------------------------
  A1     0 - 10    5.4     9.1   0.27    6.9   30.2   0.2    0.2  0.1             
  A3    10 - 18    5.6     6.8   0.24    4.5   34.6   0.2    0.1  0.0             
  2B1   18 - 26    5.8     3.9   0.14    2.1   27.8   0.1    0.0  0.0             
  2B2   26 - 35    5.5     2.3   0.11    1.5   34.6   0.1    0.0  0.1             
  2B3   35 - 45    5.5     1.9   0.09    0.9   32.4   0.2    0.4  0.6             
  2C    45 - 49+   5.6     2.2   0.10    0.6   37.5   0.2    0.2  1.1             
-----------------------------------------------------------------------------------------