Major Land Resource Area 038X
Mogollon Transition South
Accessed: 11/21/2024
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Key Characteristics
- 38.AZ1 – Lower Mogollon Transition
- Not Flooded (upland position, receives only precipitation)
- Slopes less than 15%
- Soils non calcareous in upper 10 inches
- Soils moderately deep to deep (30 to 60 inches)
- Soils with an argillic horizon
- Soils with a clayey surface (vertic)
- Soils not skeletal (< 35% coarse fragments)
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i
Key Characteristics
- 38.AZ1 – Lower Mogollon Transition
- Not Flooded (upland position, receives only precipitation)
- Slopes less than 15%
- Soils non calcareous in upper 10 inches
- Soils moderately deep to deep (30 to 60 inches)
- Soils with an argillic horizon
- Soils with a surface (not vertic)
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i
Key Characteristics
- 38.AZ1 – Lower Mogollon Transition
- Not Flooded (upland position, receives only precipitation)
- Slopes greater than 15%
- Soils shallow (less than 20 inches deep)
- Soils non calcareous in upper 10 inches
- Soils over granite, gneiss, rhyolite (acid igneous)
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i
Key Characteristics
- 38.AZ1 – Lower Mogollon Transition
- Not Flooded (upland position, receives only precipitation)
- Slopes greater than 15%
- Soils shallow (less than 20 inches deep)
- Soils calcareous throughout
- Soils over limestone, marl and related rocks
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i
Key Characteristics
- 38.AZ1 – Lower Mogollon Transition
- Not Flooded (upland position, receives only precipitation)
- Slopes less than 15%
- Soils calcareous throughout
- Soils shallow (less than 20 inches deep)
- Soils with a lime cemented hardpan
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i
Key Characteristics
- 38.AZ1 – Lower Mogollon Transition
- Not Flooded (upland position, receives only precipitation)
- Slopes greater than 15%
- Soils moderately deep and deep (30 to 60 inches)
- Soils non calcareous in the upper 10 inches
- Soils clayey
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i
Key Characteristics
- 38.AZ1 – Lower Mogollon Transition
- Not Flooded (upland position, receives only precipitation)
- Slopes less than 15%
- Soils non calcareous in upper 10 inches
- Soils moderately deep to deep (30 to 60 inches)
- Soils with an argillic horizon
- Soils with sandy loam surface less than 4 in., Soils with a loam surface
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i
Key Characteristics
- 38.AZ1 – Lower Mogollon Transition
- Not Flooded (upland position, receives only precipitation)
- Slopes greater than 15%
- Soils shallow (less than 20 inches deep)
- Soils non calcareous in upper 10 inches
- Soils over schist bedrock
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i
Key Characteristics
- 38.AZ1 – Lower Mogollon Transition
- Not Flooded (upland position, receives only precipitation)
- Slopes less than 15%
- Soils non calcareous in upper 10 inches
- Soils shallow (less than 20 inches deep)
- Soils underlain by basalt, andesite and related rocks, Soils clay loam to clay
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i
Key Characteristics
- 38.AZ1 – Lower Mogollon Transition
- Not Flooded (upland position, receives only precipitation)
- Slopes greater than 15%
- Soils shallow (less than 20 inches deep)
- Soils non calcareous in upper 10 inches
- Soils over hard basalt, andesite, tuff (basic igneous)
- Soils clayey (smectitic)
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i
Key Characteristics
- 38.AZ1 – Lower Mogollon Transition
- Not Flooded (upland position, receives only precipitation)
- Slopes greater than 15%
- Soils shallow (less than 20 inches deep)
- Soils calcareous throughout
- Soils over layered basalt, sandstone & volcanic ash
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i
Key Characteristics
- 38.AZ1 – Lower Mogollon Transition
- Not Flooded (upland position, receives only precipitation)
- Slopes greater than 15%
- Soils moderately deep and deep (30 to 60 inches)
- Soils calcareous throughout. Soils dark colored in the surface 5 inches (10YR,3/2)
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i
Key Characteristics
- 38.AZ1 – Lower Mogollon Transition
- Not Flooded (upland position, receives only precipitation)
- Slopes greater than 15%
- Soils shallow (less than 20 inches deep)
- Soils non calcareous in upper 10 inches
- Soils over weathered volcanic and metamorphic bedrock
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i
Key Characteristics
- 38.AZ1 – Lower Mogollon Transition
- Not Flooded (upland position, receives only precipitation)
- Slopes greater than 15%
- Soils shallow (less than 20 inches deep)
- Soils calcareous throughout
- Soils over diabase and related rocks
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Key Characteristics
- 38.AZ2 – Middle Mogollon Transition
- Not Flooded (upland position, receives only precipitation)
- Slopes less than 15%
- Soils non calcareous in upper 10 inches
- Soils moderately deep to deep (30 to 60 inches)
- Soils with an argillic horizon
- Soils with a clayey surface (vertic)
- Soils not skeletal (< 35% coarse frags)
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i
Key Characteristics
- 38.AZ2 – Middle Mogollon Transition
- Not Flooded (upland position, receives only precipitation)
- Slopes less than 15%
- Soils non calcareous in upper 10 inches
- Soils moderately deep to deep (30 to 60 inches)
- Soils with an argillic horizon
- Soils with clay loam surface (not vertic)
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i
Key Characteristics
- 38.AZ2 – Middle Mogollon Transition
- Not Flooded (upland position, receives only precipitation)
- Slopes greater than 15%
- Soils shallow (less than 20 inches deep)
- Soils non calcareous in upper 10 inches
- Soils over granite, schist, gneiss, rhyolite (acid igneous)
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i
Key Characteristics
- 38.AZ2 – Middle Mogollon Transition
- Not Flooded (upland position, receives only precipitation)
- Slopes less than 15%
- Soils non calcareous in upper 10 inches
- Soils moderately deep to deep (30 to 60 inches)
- Soils with an argillic horizon
- Soils with sandy loam surface less than 4 in.
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-
i
Key Characteristics
- 38.AZ2 – Middle Mogollon Transition
- Not Flooded (upland position, receives only precipitation)
- Slopes greater than 15%
- Soils shallow (less than 20 inches deep)
- Soils non calcareous in upper 10 inches
- Soils over basalt, andesite, welded tuff (basic igneous)
- Soils clayey (smectitic)
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i
Key Characteristics
- 38.AZ2 – Middle Mogollon Transition
- Flooded (bottom position, flooded from the valley-side or over-bank)
- Soils without a high water table (3-15 ft)
- Soils sandy loam to clay loam
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i
Key Characteristics
- 38.AZ2 – Middle Mogollon Transition
- Not Flooded (upland position, receives only precipitation)
- Slopes greater than 15%
- Soils shallow (less than 20 inches deep)
- Soils calcareous throughout
- Soils over diabase and related rocks
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Zoom in to display soil survey map units for an area of interest, and zoom out to display MLRAs. Select a map unit polygon to view ecological sites correlated to that map unit. View a brief description of an ecological site by clicking on its name in the map popup. Soil survey correlations may not be accurate, and ecological site classification of a location should always be verified in the field. Each selection may require the transfer of several hundred KB of data.
Ecological site keys
MLRA 38
I.
38.AZ1 – Lower Mogollon Transition
A.
Flooded (bottom position, flooded from the valley-side or over-bank)
1
Soils with a perennial high water-table (3-15 ft.)
i.
Soils sandy, gravelly, cobbly and with redox
features - Sandy Bottom, POFR2, FRVE2
ii.
Soils loamy to clayey with redox features - Meadow
2
Soils without a high water table (3-15 ft)
i.
Soils sandy - Sandy Bottom
ii.
Soils sandy loam to clay loam - Loamy Bottom
iii.
Soils clayey (vertic) - Clayey Bottom
B.
Not Flooded (upland position, receives only precipitation)
1
Slopes less than 15%
i.
Soils calcareous throughout
a.
Soils shallow (less than 20 inches deep)
2)
Soils underlain by limy schist, diorite or diabase –
Shallow Upland, limy
b.
Soils moderately deep to deep (30 to 60 inches), Soils with an argillic horizon - Loamy Upland, limy
ii.
Soils non calcareous in upper 10 inches
a.
Soils shallow (less than 20 inches deep)
1)
Soils underlain by granite, schist and rhyolite –
Granitic Upland
2)
Soils underlain by basalt, andesite and related rocks, Soils clay loam to clay
... R038XA115AZ – Volcanic Upland 12-16" p.z.
b.
Soils moderately deep to deep (30 to 60 inches)
1)
Soils without an argillic horizon, Soils loamy fine sand to sandy loam – Sandy Loam, Deep
2)
Soils with an argillic horizon
a)
Soils with sandy loam surface 4 in. or thicker – Sandy Loam Upland
b)
Soils with sandy loam surface less than 4 in., Soils with a loam surface
... R038XA109AZ – Loamy Upland 12-16 p.z.
d)
Soils with a clayey surface (vertic)
(2)
Soils skeletal (> 35% coarse fragments) – Clayey Upland, Stony
2
Slopes greater than 15%
i.
Soils very shallow (less than 10 inches deep), Soils over welded volcanic tuff and ash
... R038XA136AZ – Tuff Hills 12-16" p.z.
ii.
Soils shallow (less than 20 inches deep)
a.
Soils calcareous throughout
3)
Soils over sandstone and related rocks - Sandstone Hills
4)
Soils over layered basalt, sandstone & volcanic ash
... R038XA118AZ – Basalt / Sandstone Hills 12-16" p.z.
b.
Soils non calcareous in upper 10 inches
3)
Soils over weathered volcanic and metamorphic bedrock
... R038XA133AZ – Volcanic/Metamorphic Hills 12-16" p.z.
4)
Soils over hard basalt, andesite, tuff (basic igneous)
a)
Soils loamy - Volcanic Hills
5)
Soils over quartzite parent material - Quartzite Hills
iii.
Soils moderately deep and deep (30 to 60 inches)
a.
Soils calcareous throughout. Soils dark colored in the surface 5 inches (10YR,3/2)
... R038XA126AZ – Limy Slopes 12-16" p.z.
b.
Soils non calcareous in the upper 10 inches
1)
Soils sandy loam to clay loam - Loamy Slopes
II.
38.AZ2 – Middle Mogollon Transition
A.
Flooded (bottom position, flooded from the valley-side or over-bank)
1
Soils with a perennial high water-table (3-15 ft.)
i.
Soils sandy, gravelly, cobbly and with redox features –
Sandy Bottom, Subirrigated, PLWR2, POFR2
ii.
Soils loamy to clayey with redox features - Meadow
2
Soils without a high water table (3-15 ft)
i.
Soils sandy - Sandy Bottom, QUERC
B.
Not Flooded (upland position, receives only precipitation)
1
Slopes less than 15%
i.
Soils calcareous throughout
a.
Soils shallow (less than 20 inches deep)
1)
Soils with a lime cemented hardpan - Limy Upland
2)
Soils underlain by limy schist,
diorite or diabase - Shallow Upland, Limy
b.
Soils moderately deep to deep (30 to 60 inches). Soils with an argillic horizon - Loamy Upland, Limy
ii.
Soils non calcareous in upper 10 inches
a.
Soils shallow (less than 20 inches deep)
1)
Soils underlain by granite, schist and rhyolite –
Granitic Upland
2)
Soils underlain by basalt, andesite and related rocks. Soils clay loam to clay –Clayey Upland, Shallow
b.
Soils moderately deep to deep (30 to 60 inches)
1)
Soils without an argillic horizon. Soils loamy fine sand to sandy loam - Sandy loam, Deep
2)
Soils with an argillic horizon
a)
Soils with sandy loam surface 4 in. or thicker – Sandy Loam Upland
c)
Soils with a loam surface - R038XB209AZ - Loamy Upland
e)
Soils with a clayey surface (vertic)
(2)
Soils skeletal (> 35% coarse frags) – Clayey Upland, Stony
2
Slopes greater than 15%
i.
Soils shallow (less than 20 inches deep)
a.
Soils calcareous throughout
1)
Soils over limestone, marl and related rocks – Limestone Hills
3)
Soils over sandstone and related rocks - Sandstone Hills
b.
Soils non calcareous in upper 10 inches
1)
Soils over granite, schist, gneiss, rhyolite (acid igneous)
... R038XB204AZ – Granitic Hills 16-20" p.z.
2)
Soils over basalt, andesite, welded tuff (basic igneous)
a)
Soils loamy - Volcanic Hills
3)
Soils over quartzite parent material – Quartzite Hills
ii.
Soils moderately deep and deep (30 to 60 inches)
a.
Soils calcareous throughout. Soils dark colored in the surface 5 inches (10YR,3/2) - Limy Slopes
b.
Soils non calcareous in the upper 10 inches
1)
Soils sandy loam to clay loam - Loamy Slopes
2)
Soils clayey - Clayey Slopes
III.
38.AZ3 – Upper Mogollon Transition
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