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Physiographic Regions

Within the U.S., geographers have identified over 30
natural regions.
 These regions, called physiographic provinces are
based on similarities in land formations, elevation,
location, and use of the land…among other things.
Coastal Plain
 Largest region in Georgia
 During prehistoric times, this region
was covered by ocean
 As the water moved inland, it
created hills and other landforms
 The seashells and other aquatic life
sank to the seafloor, creating soft
rock called limestone
Coastal Plain (cont.)
 Over time, rivers and
streams deposited rocks
and clay that eroded
from the mountains.
 As a result, thousands of
feet of sediment -settled
deposits - covered the
ocean floor
 Ocean retreated leaving
limestone, clay and
sediment deposits
 This region is known
as…
The Coastal Plain!
It extends from
along the
Atlantic and
Gulf Coasts
from
Massachusetts
to Mexico
 The interior boundary
of the coastal plain is
marked by the Fall
Line.
 This line is actually a
zone - the prehistoric
shoreline
 The land north of it is
higher in elevation,
causing rivers and
streams to pick up
speed as they move
south
 Home to Okefenokee
Swamp - largest
swamp in North
America.
THE COASTAL PLAIN
Relative
Location
Physical
Features
Land Use
Elevation
-60 % of GA
-Atlantic &
Gulf Coasts
from Mass to
Mexico
-200 miles
inland
-flat, low
lying gentle
slope
-Okefenokee
Swamp
-barrier
islands
agriculture,
pasture,
pine trees
1 - 500 feet
above sea
level
The Piedmont
-Georgia’s 2nd
largest province
-French word for
“foot of the
mountains”
-500 - 1700 feet
above sea level
 Rolling hills with
many valleys
 Hills can be tall
and mistaken for
mountains
 Hardwood and pine
trees found here
 Land will support
crops like cotton,
soybeans and
wheat
- While the Coastal Plain has
Limestone, the Piedmont has
bedrock (granite,gneiss,
marble,etc)…which is very hard.
- Bedrock is easy to be seen when
the soil is washed away.
Piedmont has many streams and rivers
Because of bedrock, they have shallow
beds
Exposed rocks create frequent rapids,
making navigation impossible for large
boats
Piedmont
Relative
Location
Physical
Features
Land Use
Elevation
-2nd
largest
-So. Of
Blue ridge
--30 % of
GA
Hills
Valleys
Streams
and rivers
Hardwood
and pines
Cotton
soybeans
wheat
Granite
Marble
500-1700
feet above
sea level
Blue Ridge
Georgia’s most beautiful
physiographic province
The Blue Ridge
Mountains…the
highest in the
Appalachian
Highlands
The Blue Ridge
region stretches
from Georgia to
Pennsylvania
Georgia’s Highest
Mountain
Brasstown Bald is 4,784 feet
above sea level
Springer Mtn (3782 ft) is the
beginning of the Appalachian
Trail
The App. Trail is
2158 miles long.
Blue Ridge
The height of the mountains cools
the warm air currents coming from
the Gulf of Mexico. This produces
rain throughout the year!
Less than 1% of Georgia’s farm
land
Apples, corn, and timber
Blue Ridge
Relative
Location
NE
Georgia to
So. Penn.
Physical
Features
Many
rivers,
high mts,
valleys
Land Use
Elevation
Apple
4784’
Brasstown
Corn
Bald
Hardwood
1% of GA
farmland
Ridge and Valley Region
-In Georgia, located west of Blue
Ridge
-Stretches 1,200 miles from NY to
Alabama
-Long parallel ridges over looking
valleys
From the ground, the ridges look
like mountains…
…But the highest point is only 700-1600 feet from
the base
Tell me about this region…
The Ridge and Valley province is
located between the Blue Ridge,
Piedmont, and Plateau regions.
Consists of softer sedimentary
rocks like sandstone (ridges) and
limestone and shale (valleys)
Ridges covered in forest, Valleys
used for pastures and farming
Farming in forests???
Well, the valleys actually are not
covered in forest, making it
moderately suited for farming!
- Average growing season of 210220 days
- Variety of crops can be grown
(corn,soy beans, wheat, cotton)
Ridge and Valley
Relative
Location
Physical
Features
1200
Ridges
miles from and
NY to
valleys
Alabama
Soft rock
Land Use
Elevation
farming
700-1600
Appalachian Plateau
This is the smallest of the
physiographic regions in Georgia.
Located in the far northwestern
corner of Georgia.
Has the only source of coal in
Georgia.
Known as TAG Corner
Appalachian Plateau
Relative
Location
Physical
Features
Land Use Elevation
Northwest
corner of
Georgia
-TAG
Corner
Caves,
canyons,
rock
formations
hardwood Up to
forests
2000 feet
and
pastures