Texas Almanac, 1954-1955 Page: 136
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136 TEXAS ALMANAC-1954-1955
ELEVATION
ABOVE SEA LEVEL
E Above 4,000 ft.
3,000 to 4,000 ft.
2,000 to 3,000 ft.
1,000 to 2,000 ft.
500 to 1,000 ft.
0 to 500 ft.The Texas surface ranges from sea
level to more than 4,000 feet on pla-
teaus and reaches a maximum altitude
of 8,751 feet in Guadalupe Peak.
Physiographic Regions
And Subregions
The four great physiographic regions that
extend into Texas from east, north and west,
and their subregions in Texas, are given be-
low. They are classed primarily according to
their physical characteristics. In general, they
may also be considered geographic regions,
or natural regions, as these terms are fre-
quently used to describe the combination of
physical and human conditions existing with-
in a given area. The names of the subregions
giwn below are those that have come into
common usage among the people. In most
instances they refer to physiographic fea-
tures, e.g. "Blackland Prairies," but in some
instances the name is derived from character
of vegetation, e.g. "Post Oak Belt." See Map,
Page 134.
I. GULF COASTAL PLAINS
About 40 per cent of the Texas surface lies
on the Gulf Coastal Plain, which extends in
varying widths from Florida, across the
Southern States and southward along the
coast of MIexico to Central America.
In Texas the Gulf Coastal Plain is sharply
distinguished from the uplands by the line of
Balcones Fault. Beginning at the Rio Grande
near Del Rio, the Balcones Fault runs east
to a point just above San Antonio and then
turns northeast past Austin to western Wil-
liamson County. with definite surface mark-
ing, and continues on to the Red River inTexas Surface
Elevationsthe vicinity of Denison with less definite
character and sometimes as a series of paral-
lel faults. The south- and east-facing hills
that accompany the subterranean earth slip-
page from the Rio Grande to Williamson
County are known as the Balcones Escarp-
ment. (From the Spanish word. Balcones,
meaning balconies, because of the rounded
appearance of these hills as viewed from the
plain below.)
There are five subregions of the Gulf
Coastal Plain:
Coastal Prairies.-A belt about 70 miles
wide, from tidewater to about 200 feet ele-
v ti, n. and extending from Sabine to San
Antonio River. Grassy plain, traversed by
hardwood growths along rivers which cross
this belt. Heavy. black and g ay clay soils.
Products: Oil, gas. sulphur, cotton, grain
sorghums, rice, beef cattle. dairy products,
poultry, heavy industry manufactures. Econo-
my dominated by industry and commerce of
the big port cities.
Pine Belt.-Popularly known as the "Piney
Woods," it extends from the Louisiana line
westward about 100 miles, running from
Coastal Prairies on south to HUd l, iler. Roll-WHEN I ACAPULCO CAFE Speciaizinin Fine Mexi-
DALLAS - VISIT can Foods in or Atmos-
1501 McKINNEY AT FIELD-PHONE RA-0351 phere of Old Mexico.
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Texas Almanac, 1954-1955, book, 1953; Dallas, Texas. (https://texashistory.unt.edu/ark:/67531/metapth117168/m1/138/: accessed April 28, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting Texas State Historical Association.