Soil Survey of Dallas County, Texas Page: 7
This book is part of the collection entitled: Texas Soil Surveys and was provided to The Portal to Texas History by the UNT Libraries Government Documents Department.
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DALLAS COUNTY, TEXAS
Gowen
Axtell
Wilson
,,...Ancient alluvium
y alluvium
..Chalky limestoneFigure 2.-Typical pattern of soils and parent material in the Wilson-Rader-Axtell map unit.
face layer is dark gray clay about 37 inches thick. To a
depth of 56 inches, the soil is grayish brown clay. To a
depth of 78 inches, it is clay mottled in shades of gray
and yellow.
The minor soils in this unit are the gently sloping to
strongly sloping Altoga, Lewisville, Sunev, and Vertel
soils on uplands, the nearly level and gently sloping
Houston Black soils on ridges and in low areas in val-
leys, and the nearly level Ovan and Trinity soils on flood
plains.
The soils in this unit are used as pasture and range-
land and for urban uses. These soils have medium po-
tential for King Ranch bluestem and common bermuda-
grass. They support mid and tall rangeland grasses.
Droughtiness and the clayey texture are the main limita-
tions to use as cropland.The very high shrink-swell potential, low strength, un-
stable slopes, erosion hazard, clayey texture, and corro-
sivity of the soils are the main limitations to urban uses.
The clayey texture, very slow permeability, slope, and
erosion hazard are the main limitations to recreation
uses.
7. Sillawa-Silstid-Bastsll
Deep, nearly leve/ to sloping, loamy and sandy soils; on
stream terraces
This map unit consists mainly of deep, slightly acid to
medium acid, well drained soils that have slopes of 0 to
8 percent. This unit makes up about 4 percent of the
county.
Silawa soils make up about 40 percent of this unit,
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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/m1/17/?rotate=0: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.