Natural Resources
Conservation Service
Ecological site R025XY025OR
ASHY PLATEAU 11-13 PZ
Last updated: 4/25/2024
Accessed: 11/23/2024
General information
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.
MLRA notes
Major Land Resource Area (MLRA): 025X–Owyhee High Plateau
MLRA 25 lies within the Intermontane Plateaus physiographic province. The southern half is in the Great Basin Section of the Basin and Range Province. This part of the MLRA is characterized by isolated, uplifted fault-block mountain ranges separated by narrow, aggraded desert plains. This geologically older terrain has been dissected by numerous streams draining to the Humboldt River. The northern half of the area lies within the Columbia Plateaus geologic province. This part of the MLRA forms the southern boundary of the extensive Columbia Plateau basalt flows. Deep, narrow canyons drain to the Snake River which incise the broad volcanic plain. The Humboldt River, route of a major western pioneer trail, crosses the southern half of this area. Reaches of the Owyhee River in this area have been designated as National Wild and Scenic Rivers.
Associated sites
R025XY017OR |
SHALLOW GRAVELLY CLAYPAN 11-13 PZ Shallow Gravelly Loam 11-13" PZ |
---|---|
R025XY020OR |
SOUTH SLOPES 11-13 PZ South Slopes 11-13" PZ |
R025XY026OR |
CLAYPAN SOUTH SLOPES 13-16 PZ Shallow South Slopes 11-13" PZ |
R025XY030OR |
DROUGHTY NORTH SLOPES 11-13 PZ Droughty North Slopes 11-13" PZ |
R025XY032OR |
NORTH SLOPES 11-13 PZ North Slopes 11-13" PZ |
R025XY038OR |
CLAYPAN NORTH SLOPES 11-13 PZ Shallow North Slopes 11-13" PZ |
Similar sites
R025XY010OR |
LOAMY 8-11 PZ Loamy 8-11" PZ (lower precipitation) |
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Table 1. Dominant plant species
Tree |
Not specified |
---|---|
Shrub |
(1) Artemisia tridentata subsp. trifida |
Herbaceous |
(1) Festuca idahoensis |
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