Soil Survey of Dallas County, Texas Page: 8
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SOIL SURVEY
Figure 3.-Typical pattern of soils and parent material in the Ferris-Heiden map unit.
Silstid soils 28 percent, and Bastsil soils 11 percent (fig.
4). Minor soils make up about 21 percent.
Silawa soils are on ridges and side slopes on uplands.
They are gently sloping to sloping. Typically, the surface
layer is brown to grayish brown fine sandy loam about 6
inches thick. To a depth of 26 inches, the soil is sandy
clay loam that is reddish brown in the upper 6 inches
and yellowish red below that. To a depth of 43 inches, it
is reddish yellow fine sandy loam. To a depth of 80
inches, it is reddish yellow loamy fine sand.
Silstid soils are on uplands. They are nearly level to
gently sloping. Typically, the surface layer is loamy fine
sand about 27 inches thick. It is brown in the upper 10
inches and light yellowish brown below that. To a depthof 65 inches, the soil is yellowish brown sandy clay loam
that has brown and red mottles. To a depth of 80 inches,
it is reddish yellow loamy fine sand that has brown and
gray mottles.
Bastsil soils are on high terraces. They are nearly level
to gently sloping. Typically, the surface layer is brown
fine sandy loam about 8 inches thick. To a depth of 34
inches, the soil is sandy clay loam that is yellowish red in
the upper 4 inches and red below that. To a depth of 68
inches, it is mottled red and gray sandy clay loam.
The minor soils in this map unit are Arents in small
areas where soil has been removed in excavating for
sand and gravel; Altoga, Lewisville, and Sunev soils in
sloping areas near streams; the nearly level Axtell and
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General Soil Map, Dallas County, Texas (Map)
Map displays soil types along with creeks, towns, schools, churches, power transmission lines, oil and gas pipelines, roads, and railroads. Includes legend and symbols. Scale 1:253,400
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Coffee, Daniel R. Soil Survey of Dallas County, Texas, book, 1980; Washington D.C.. (https://texashistory.unt.edu/ark:/67531/metapth130211/m1/18/?rotate=90: accessed July 15, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.