Natural Resources
Conservation Service
ecological site group 018XESG04
Deep Rocky
Accessed: 08/29/2026
Ecological site group description
Key Characteristics
- Uplands
- <75% bedrock outcrop
- Surface SAR <8 and subsurface EC <8 and surface EC <4
- Slope <35% or <40% surface rock
- Depth >55 cm
- Rock >30% surface or >30% subsurface
Provisional. A provisional ecological site description has undergone quality control and quality assurance review. It contains a working state and transition model and enough information to identify the ecological site.
Physiography
This ESG is located on hillslopes and canyons.
Vegetation dynamics
The modal ecological site for this ESG is F018XA201CA Deep Thermic Hillslopes.
Major Land Resource Area
MLRA 018X
Sierra Nevada Foothills
Subclasses
- F018XA201CA–Deep Thermic Hillslopes
- F018XA202CA–Deep Mesic Mountain Slopes & Summits
- F018XE201CA–Granitic Hills and Mountains
- F018XI200CA–Low Elevation Foothills
- F018XI201CA–Moderately Deep Thermic Foothills
- F018XI202CA–Deep Thermic Steep Hillslopes
- F018XI205CA–Thermic Granitic Foothills
- F018XI207CA–Deep Volcanic Plateaus and Hills
- R018XA103CA–Shallow Thermic Volcanic Ridges
- R018XC107CA–Thermic Hills And Mountains south-facing
- R018XE101CA–Very Deep Calcareous Alluvium
- R018XE104CA–Thermic Granitic Hills
- R018XI102CA–Thermic Ultramafic Foothills Extremely High Magnesium Content (Ca:Mg Ratio Less Than 0.5)
- R018XI105CA–Mesic Steep Convex Slopes bordering thermic
- R018XI125CA–Very Steep Skeletal Hillslopes
- R018XX101CA–Mid Gradient Riparian Complex, 4Th Order Stream
Correlated Map Unit Components
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Stage
Provisional
Contributors
Curtis Talbot
Travis Nauman
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