Natural Resources
Conservation Service
ecological site group ESG048A36
Aridic Shallow or Rocky
Accessed: 08/28/2026
Ecological site group description
Key Characteristics
- Uplands
- <75% bedrock outcrop
- Gypsum <5% surface, gypsum <10% subsurface, surface SAR <8, subsurface EC <8, and surface EC <4.
- EC<1.5 surface or <2 subsurface
- Slope, rock, or depth meeting one of the four criteria above, but with an Aridic soil moisture regime - 71 soil components
Provisional. An approved ecological site description has undergone quality control and quality assurance review. It contains a working state and transition model, enough information to identify the ecological site, and full documentation for all ecosystem states contained in the state and transition model.
Physiography
This ESG is located on hills.
Climate
This ESG is characterized by the aridic temperature regime.
Soil features
This ESG is characterized by >30% rock, or depth
Vegetation dynamics
The modal ecological site for this ESG is F048AY925CO - Ponderosa Pine Forest.
Major Land Resource Area
MLRA 048A
Southern Rocky Mountains
Subclasses
- F048AY448CO–Mountain Pinyon
- F048AY908CO–Mixed Conifer
- F048AY925CO–Ponderosa Pine Forest
- R048AY004NM–Mountain Loam
- R048AY229CO–Rocky Loam
- R048AY238CO–Brushy Loam
- R048AY242CO–Dry Mountain Shale
- R048AY244CO–Mountain Shale
- R048AY247CO–Deep Clay Loam
- R048AY287CO–Stony Foothills
- R048AY303CO–Loamy Slopes
- R048AY306UT–Upland Loam (Wyoming Big Sagebrush)
Correlated Map Unit Components
21981121, 21981878, 21981879, 21981911, 21981629, 21840754, 21840753, 21841245, 21841244, 21840569, 21840570, 21841251, 21841250, 21841001, 21840759, 21840760, 21840815, 21054062, 21054063, 21070417, 21070457, 21070459, 21287137, 21285330, 21285329, 21285306, 21285332, 21284352, 21284353, 21284373, 21284329, 21256474, 21256428, 21276674, 21131259, 21251343, 21251565, 21251539, 21251442, 21245472, 21244941, 21243241, 21243244, 21243245, 21243256, 21243334, 21269765, 21242920, 21242939, 21242923, 21242985, 21243010, 21243031, 21243073, 21243077, 21978796, 21978413, 21979423, 21979424, 21979081, 21979836, 21980051, 21980052, 21981857, 21981957, 21980861, 21980859, 21980870, 21981126, 21981127, 21981123
Stage
Approved
Contributors
Travis Nauman
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