SOIL PROFILE DESCRIPTIONS (con.) 

 Unit 14. — Typic Cryochrept (fine loamy mixed) 



Parent Material: Granite, gneiss, and schistose 

 rock 



Slope: 47 percent, north aspect 

 Drainage: Well drained 

 Elevation: 7,900 ft. 



Landform: Colluvial slope 

 Erosion: None apparent 

 Vegetation: Subalpine fir, snowberry, 

 lupine, western coneflower 



Horizon 



Depth 

 (inches) 



Description 



01 

 02 

 Al 



A2 



B21t 



B22t 



B3 



R 



2-1/2 Partially decomposed needles and twigs. 



1/2-0 Black, well decomposed needles and twigs,. 



0-2 Brown (lOYR 4/3) very fine sandy loam, dark brown (lOYR 3/3) 



moist; moderate medium subangular blocky breaking to moderate fine 

 granular structure; slightly hard, friable; plentiful medium and few 

 fine roots; slightly acid (pH 6.5); clear wavy boundary. 



2-8 Light brown (7. SYR 6/4) gravelly sandy loam, dark brown to brown 



(7. SYR 4/2) moist; weak medium subangular blocky breaking to 

 moderate very fine granular structure; slightly hard, friable; plentiful 

 coarse and medium and few fine roots; 20 percent gravel; strongly acid 

 (pH S.5); clear wavy boundary. 



8-17 Brown (7. SYR 4.4/2) gravelly heavy sandy loam, dark brown (7. SYR 



3/2) moist crushed; weak medium subangular blocky breaking to 

 moderate fine subangular blocky structure; slightly hard, friable, 

 slightly sticky; few thin clay films on ped faces and in pores; few fine 

 and plentiful coarse and medium roots; 30 percent gravel; medium 

 acid (pH 6.0); gradual irregular boundary. 



17-27 Brown (7. SYR S/2) cobbly sandy clay loam marginal to clay loam, 



brown (7. SYR 4.6/2) moist crushed; weak fine subangular blocky 

 breaking to weak fine granular structure; slightly hard, friable, slightly 

 sticky; slightly plastic; few thin clay films on ped faces and in pores; 

 few coarse and plentiful medium roots; 2S percent cobble; medium 

 acid (pH 5.8); clear irregular boundary. 



27-33 Brown (7. SYR 4.4/2) cobbly sandy clay loam marginal to clay loam, 



dark brown (7. SYR 3/2) moist crushed; weak medium subangular 

 blocky structure, slightly hard, friable, slightly sticky; colloid stains on 

 mineral grains; few medium roots; 30 percent cobble; slightly acid 

 (pH 6.5); abrupt wavy boundary. 



33-40+ Brown (7. SYR 5/4); highly weathered schistose rock; high in mica 

 (dominantly biotite). 



32 



