Savannah is located in the Coastal Plain physiographic province
of
Georgia. The Coastal Plain is a wedge of poorly consolidated
sand,
clay, and limestone that thickens in a coastward direction from
the
midpoint of the State (the Fall Line). The sediments of the
Coastal
Plain were deposited by ancient seas and river deltas that
periodically dominated the landmass over the last 120 million
years.
At Savannah, this sedimentary wedge is approximately 4,000 feet
(or
1200 meters) thick, and is an important economic resource for the
region. Aside from the various minerals that are quarried in
local
surface mines, the Coastal Plain strata contain valuable
freshwater
resources. In addition, the Savannah River has deeply incised
into
the soft strata, which has resulted in Savannah being a major
deepwater maritime shipping center.
Go back to the Savannah area water resources page, or to the Information for Visitors to Atlanta and Surrounding Area page.
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