Major Land Resource Area 012X
Lost River Valleys and Mountains
Accessed: 10/07/2024
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Ecological site list
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils not affected by salts.
- Site is below 7500 ft. elevation in a semi-arid environment.
- Soils are influenced by limestone.
- Slopes can be greater than 30%.
- Site is below 13” PZ.
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils not affected by salts.
- Site is below 7500 ft. elevation in a semi-arid environment.
- Soils are influenced by limestone.
- Slopes always less than 30% slope.
- Soils are shallow to hardpan or deep. Gravels can exceed 60% volume below 12" thus exert a shallow soil influence
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils are affected by salts (saline).
- Site occurs in <8" PZ on slopes less than 5%. Elevation ranges from 4700-5800 ft. Soils are deep and well drained. Textures are loams to very gravelly loams.
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils not affected by salts.
- Site is below 7500 ft. elevation in a semi-arid environment.
- Soils not influenced by limestone.
- Site usually within 8-12" PZ.
- Soils are deep to very deep.
- Soil surface is gravelly.
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils not affected by salts.
- Site is below 7500 ft. elevation in a semi-arid environment.
- Soils not influenced by limestone.
- Site usually within 8-12" PZ.
- Soils are shallow to moderately deep.
- Site occupies the windswept portion of the ridgetop or mountain slope.
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils not affected by salts.
- Site is below 7500 ft. elevation in a semi-arid environment.
- Soils are influenced by limestone.
- Slopes always less than 30% slope.
- Soils are shallow.
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils not affected by salts.
- Site is below 7500 ft. elevation in a semi-arid environment.
- Soils not influenced by limestone.
- Site in the 12-16” PZ.
- Soils are gravelly.
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils are affected by salts (saline).
- Site occurs in 7-9" PZ on slopes from 0-30%. Elevation ranges from 4800-7000 ft. Soils are deep and well drained. Textures are gravelly loams to extremely gravelly loams.
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i
Key Characteristics
- Site occurs on uplands
- Slopes greater than 30% on northerly aspects.
- Soils are generally moderately deep. Site occurs in 12-16" PZ at 5300-9000 ft. elevation.
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i
Key Characteristics
- Site occurs on bottomlands (slopes less than 8%). Water table is seasonal.
- Site occurs at 4700-6800 ft elevation on 1-15% slopes. Soils are deep and well drained. Textures are loam and gravelly loam.
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils not affected by salts.
- Site is below 7500 ft. elevation in a semi-arid environment.
- Soils not influenced by limestone.
- Site in the 12-16” PZ.
- Soils are loamy.
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils not affected by salts.
- Site is below 7500 ft. elevation in a semi-arid environment.
- Soils not influenced by limestone.
- Site at or below 8” PZ.
- Slopes usually 0-3%.
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils not affected by salts.
- Site is below 7500 ft. elevation in a semi-arid environment.
- Soils are influenced by limestone.
- Slopes can be greater than 30%.
- Site is in 12-20” PZ.
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i
Key Characteristics
- Site occurs on uplands
- Slopes greater than 30% on southerly aspects.
- Site occurs in 8-12" PZ at 4500-7000 ft. elevation. Soils are gravelly and extremely gravelly loams over fractured bedrock. Soils range from shallow to deep.
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils are affected by salts (saline).
- Site occurs in 8-11" PZ on slopes less than 10%. Elevation ranges from 5000-6500 ft. Soils are deep and well drained. Textures are loams to extremely gravelly loams.
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils not affected by salts.
- Site is below 7500 ft. elevation in a semi-arid environment.
- Soils not influenced by limestone.
- Site at or below 8” PZ.
- Slopes range from 10-75%.
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils not affected by salts.
- Soils have clayey subsoils.
- Site occurs in 13-16" PZ with slopes from 5-30%. Elevation ranges from 6500-8500 ft. Depth to clay horizon is 3-10”.
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils not affected by salts.
- Site is below 7500 ft. elevation in a semi-arid environment.
- Soils not influenced by limestone.
- Site in the 16-22” PZ.
- Soils are deep loams to gravelly loams.
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils not affected by salts.
- Site is below 7500 ft. elevation in a semi-arid environment.
- Soils not influenced by limestone.
- Site usually within 8-12" PZ.
- Soils are shallow to moderately deep.
- Site occurs on rocky and stony bedrock outcrops.
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i
Key Characteristics
- Site occurs on bottomlands (slopes less than 8%). Water table present for most of the growing season.
- Water at or near the surface at beginning of the growing season and greater than 40" at the end of the growing season.
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils not affected by salts.
- Site is above 7500 ft. in a subalpine environment.
- Soils are moderately deep to deep.
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils not affected by salts.
- Site is above 7500 ft. in a subalpine environment.
- Soils are shallow.
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils not affected by salts.
- Site is below 7500 ft. elevation in a semi-arid environment.
- Soils not influenced by limestone.
- Site usually within 8-12" PZ.
- Soils are shallow to moderately deep.
- Shallow to heavy clay layer.
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i
Key Characteristics
- Site occurs on uplands
- Slopes greater than 30% on southerly aspects.
- Site occurs in 12-16" PZ at 5000-7500 ft. elevation. Soils have very cobbly clay loam or clay surfaces. Depth to bedrock or claypan is usually 16-30".
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils not affected by salts.
- Site is below 7500 ft. elevation in a semi-arid environment.
- Soils not influenced by limestone.
- Site usually within 8-12" PZ.
- Soils are deep to very deep.
- Site occurs on alluvial fans and terraces.
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils not affected by salts.
- Site is below 7500 ft. elevation in a semi-arid environment.
- Soils are influenced by limestone.
- Slopes always less than 30% slope.
- Soils are moderately deep to deep.
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils not affected by salts.
- Soils have clayey subsoils.
- Site occurs in 12-16" PZ with slopes less than 30%. Elevation ranges from 4800-6500 ft. Depth to duripan or bedrock is 20-40”.
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils not affected by salts.
- Soils have clayey subsoils.
- Site occurs in 7-10" PZ with slopes from 1-10%. Elevation ranges from 4000-6000 ft. Depth to claypan is 8-14”.
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils not affected by salts.
- Site is below 7500 ft. elevation in a semi-arid environment.
- Soils not influenced by limestone.
- Site in the 16-22” PZ.
- Soils are loamy and acidic.
-
i
Key Characteristics
- Site occurs on bottomlands (slopes less than 8%). Water table present for most of the growing season.
- Water at or near the surface at beginning of growing season and down to 20-40" at the end of the growing season.
-
i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils not affected by salts.
- Site is below 7500 ft. elevation in a semi-arid environment.
- Soils not influenced by limestone.
- Site usually within 8-12" PZ.
- Soils are deep to very deep.
- High coarse fragments throughout soil profile. Colder temperature.
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i
Key Characteristics
- Site occurs on uplands
- Slopes generally less than 30% on all aspects.
- Soils not affected by salts.
- Site is below 7500 ft. elevation in a semi-arid environment.
- Soils not influenced by limestone.
- Site usually within 8-12" PZ.
- Soils are shallow to moderately deep.
- High coarse fragments throughout soil profile.
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i
Key Characteristics
- Site occurs on bottomlands (slopes less than 8%). Water table present for most of the growing season.
- Permanent water table at 12" or less. Site occurs on linear to concave areas on floodplains.
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i
Key Characteristics
- Site occurs on bottomlands (slopes less than 8%). Water table present for most of the growing season.
- Water at or near the surface at beginning of growing season and down to 10-20" at the end of the growing season.
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i
Key Characteristics
- Site occurs on bottomlands (slopes less than 8%). Water table present for most of the growing season.
- Water standing at or above the surface into late summer.
-
i
Key Characteristics
- Site occurs on uplands
- Slopes greater than 30% on northerly aspects.
- Soils are deep and loamy. Site occurs in 12-16" PZ at 6500-9000 ft.
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