30c - locate and evaluate the importance of key physical features on the development of Georgia including Fall Line,Okefenokee Swamp, Appalachian Mountains,Chattahoochee and Savannah Rivers, and barrier islands.
GEORGIA PHYSICAL features
the fall line
A Fall Line is the break between between an upland region of relatively hard crystalline basement rock and a coastal plain of softer sedimentary rock. A Fall Line is typically prominent when crossed by a river, for there will often be rapids or waterfalls. Many times a fall line will recede upstream as the river cuts out the uphill dense material, often forming C shaped waterfalls. The rapid change in elevation of the water, and the resulting energy release, makes the fall line a good location for water mills, grist mills, and sawmills.
Okefenokee Swamp
The Okefenokee Swamp is a peat-filled wetland straddling the Georgia–Florida border in the United States. The Okefenokee Swamp peat-filled wetland straddling the Georgia–Florida border in the United States. The Okefenokee is the largest blackwater swamp in North America. The term Okefenokee in Native American is "land of trembling earth".
Appalachian Mountains
The Appalachians first formed roughly 480 million years ago during the Ordovician Period and once reached elevations similar to those of the Alps and the Rocky Mountains before they were eroded. The rocks of the Appalachian Plateau are sedimentary rocks of similar age and type to those found in the to the southeast.
Chattahoochee and Savannah Rivers
Savannah is the oldest city in the U.S. state of Georgia and the county seat of Chatham County. The name "Savannah" comes from a group of Shawnee who migrated to the Piedmont region in the 1680s. Established in 1733, the city of Savannah became the British colonial capital of the Province of Georgia and later the first state capital of Georgia. It is Georgia's fifth-largest city and third-largest metropolitan area.
barrier islands
Popularly known as the Golden Isles, the barrier islands are composed of dune and beach ridge sands formed by the interaction of wind, waves, currents, sand supply, and a slowly rising or stable sea level. The availability of sand largely determines whether the shoreline will erode or build. The barrier islands protect the mainland from the brunt of major storms and hurricanes.