An edge of boundary line

A line marking the limits of area

Areas of the Earth with similar issues

Low-lying coastal lands drained by tidal streams

Twice daily rise and fall of the ocean that is caused by the gravitational pull of the moon and sun

The natural border between the Coastal Plain(Tidewater) and the Piedmont regions, where waterfalls prevent further travel on the river

A place where something begins

The part of the river that meets the sea, where fresh river water and ocean saltwater mix

areas that are raised up

An area of elevated land that is flat on top

People who share common customs, origin, history, government or language

Objects or tools that tell about people from the past

The remains or imprint of something that once lived, such as a plant or an animal

The study of past cultures using items left behind by past peoples

Having great power or influence

A group of people who are connected to one another by a leader, an idea, or way of life

The wearing away of land or soil by the movement of water, ice or wind

A large Indian town

The first permanent English settlement in America