600—Freezeout-Yollabolly association, 50 to 75 percent slopes
Map Unit Setting
General location:
Coast Range crest along Lake and Glenn County boundaries
MLRA:
5
Mapunit geomorphic setting:
Mountain
Elevation:
4995 to 7060 feet (1524 to 2152 meters)
Mean annual precipitation:
50 to 70 inches (1270 to 1778 millimeters)
Mean annual air temperature:
43 to 48 degrees F. (6 to 9 degrees C.)
Frost-free period:
90 to 130 days
Freezeout very gravelly sandy
loam—50 percent
Yollabolly very gravelly loam—35
percent
Minor components:
15 percent
Major Component Description
Freezeout very gravelly sandy loam
Component geomorphic setting:
Sideslopes of mountain
Parent material:
Residuum weathered from schist
Typical vegetation:
White fir and red fir
Component Properties and Qualities
Slope:
50 to 75 percent
Runoff:
High
Surface features:
None noted.
Percent area covered by surface
coarse fragments: None noted.
Depth to restrictive feature:
Bedrock (lithic)—20 to 40 inches
Slowest permeability class:
Moderately rapid
Salinity:
Not saline
Sodicity:
Not sodic
Available water capacity:
About 1.9 inches (Very low)
Component Hydrologic Properties
Present flooding:
None
Present ponding:
None
Current water table:
None noted.
Natural drainage class:
Well drained
Interpretive Groups
Land capability irrigated:
Not calculated
Land capability nonirrigated: 7e
Typical Profile
Oi—0 to 1 inches; slightly
decomposed plant material
A—1 to 6 inches; very
gravelly sandy loam
Bw1—6 to 17 inches; very
gravelly sandy loam
Bw2—17 to 26 inches; very
gravelly sandy loam
R—26 inches; unweathered
bedrock
Yollabolly very gravelly loam
Component geomorphic setting:
Upper sideslopes and ridgetops of mountain
Parent material: Residuum weathered
from schist
Typical vegetation: White fir and red
fir
Component Properties and Qualities
Slope:
50 to 75 percent
Runoff:
High
Surface features:
None noted.
Percent area covered by surface
coarse fragments: 10 to 40 fine angular
gravel
Depth to restrictive feature:
Bedrock (lithic)—10 to 20 inches
Slowest permeability class:
Moderate above the bedrock
Salinity:
Not saline
Sodicity:
Not sodic
Available water capacity:
About 1.2 inches (Very low)
Component Hydrologic Properties
Present flooding:
None
Present ponding:
None
Current water table:
None noted.
Natural drainage class:
Excessively drained
Interpretive Groups
Land capability irrigated:
Not calculated
Land capability nonirrigated: 7e
Typical Profile
A1—0 to 2 inches; very gravelly loam
A2—2 to 6 inches; very gravelly loam
C—6 to 17 inches; very gravelly loam
R—17 inches; unweathered bedrock
Estimated Minor Components
Rock outcrop
Composition:
0 to 9 percent
Slope: 50 to 75 percent
Component geomorphic setting: Mountain,
hill
Bamtush very gravelly loam and similar soils
Composition:
0 to 5 percent
Slope: 50 to 75 percent
Component geomorphic setting:
Sideslopes on mountain
Unnamed
Composition:
0 to 1 percent
Slope: 50 to 75 percent
Component geomorphic setting: Channel
Additional Component Properties
See "Chemical Properties of Soils" table and the "Physical Properties of Soils" table for component horizon data.
For additional component horizon data, see the "Soil Properties" section of this publication.
A typical soil description with range in characteristics is included, in alphabetical order in the "Classification of the Soils" section.
Use and Management
Major uses:
Wildlife habitat, watershed and timber production
For information about management, see
the "Use and Management" section of this
publication.