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The Gulf Coastal Plain
Region
• A geographic section or subregion is an
area that has similarities in vegetation,
wildlife, and other natural resources.
• There are 5 subregions that make up the
Coastal Plains.
5 Subregions:
• The Piney Woods (blue)
– Eastern most subregion
• The Gulf Coast Plain
(yellow)
– South and west of the
Piney Woods
• The Post Oak Belt
(purple)
– West of both Piney Woods
and Gulf Coast Plain
5 Subregions:
• The Blackland
Prairie (brown)
– Stretches west along
Post Oak Belt
• The South Texas
Plain (pink)
– West of the Gulf Coast
Plain
Piney Woods
• There are 4 Natural Forests that are found
the in Piney Woods:
– The Angelina
– Sabine
– Sam Houston
– Davy Crocket
Piney Woods
• Much of the Big Thicket area is a swamp.
• An important economic activity in the
Piney Woods is Lumbering. Rain in this
area helps support this industry.
Gulf Coast Plain
• Heavy stands of grasses grow in many parts of the Gulf Coast Plain.
• The single most important industry here is the production of petrochemicals. (chemicals made from oil and gas that are used in most industries.)
• Houston is the largest city in Texas and
the third largest seaport in the United
States. It is located in the Gulf Coast
Region.
• Tyler is known as the “Rose Capital of the
World”. It is located in the Post Oak Belt.
The South Texas Plain
• Lies west of the Gulf
Coast Plain.
• Extends south to the
Gulf of Mexico where
the land is low and
flat.
• In the northern and
western area, the
land gently rises and
becomes more hilly
• The climate in the
subregion is drier
than the Gulf Coast
Plain.
• Grasslands cover this
coastal section, but
dense brushlands
characterize this
subregion.
South Texas Plain
• The South Texas
Plain has one of the
richest farming areas
in the nation.
• Temperatures are
warm for most of the
year.
• The Valley has fertile
soils from sediment
washed down the Rio
Grande.
South Texas Plain
• Ranches are common
throughout the South
Texas Plain.
• The subregion is mostly
rural.
• San Antonio is the largest
city in the subregion.
• The South Texas region
is a major center for
international trade.
The Post Oak Belt
• The Post Oak Belt begins
just outside San Antonio
and stretches north the
Red River.
• It lies west of the Piney
Woods and the Gulf
Coast Plain.
• The Belt has a similar
climate to that of the
Piney Woods.
The Post Oak Belt
• Few part of the Post Oak
Belt are covered in trees
such as post oak,
blackjack oak, elm,
hickory, pecan and
walnut trees.
• Mesquite trees are
becoming more common.
• The area’s soil is sandier
and the land is mostly
flat.
The Post Oak Belt
• Cotton is a major crop as
well as sorghum, corn
and grain to feed
livestock.
• Livestock is a major
industry. Farmers raise
cattle and hogs.
• The regional economy
depends on natural
resources such as oil and
natural gas.
The Post Oak Belt
• Most people in the
Post Oak areas live in
rural communities.
• The largest cities in
the Post Oak Belt are
Bryan-College Station
Blackland Prairie
• The Blackland Prairie has more of the
state’s larger cities than any other
subregion, such as, Dallas, Garland,
Grand Prairie, Mesquite, Plano,
Richardson, Sherman, Temple, and Waco.
• Allen is a part of the Blackland Prairie as
well!
• Austin has many high technology firms
and is becoming an important computer
research center.
• Many people in the South Texas Plain
earn their living in agriculture and farming-
related industries.
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