Marsh  -  An area of soft, wet, low-lying land, characterized by grassy vegetation and often forming a transition zone between water and land.

Swamp - forested wetlands. Like marshes, they are often found near rivers
or lakes and have mineral soil that drains very slowly.

Coast - The part of the land adjoining or near the ocean

Mountain  - A natural elevation of the earth's surface having considerable mass, generally steep sides, and a height greater than that of a hill.

Atlantic Ocean - The Atlantic Ocean is the second largest ocean and partially borders Georgia

Piedmont - the plateau between the coastal plain and the Appalachian Mountains

Alligator – an animal that lives in the Georgia swamp

Macon – a city that is in the Georgia piedmont area

Pine tree – a tree that grows in all of Georgia

Some definitions taken from http://www.dictionary.com.