Atlantic seaboard watershed
# Atlantic seaboard watershed

The Atlantic seaboard watershed is a watershed of the Atlantic Ocean in eastern North America along the Atlantic Canada (Maritimes) coast south of the Gulf of Saint Lawrence Watershed, and the East Coast of the United States north of the Kissimmee River watershed of Lake Okeechobee basin in the central Florida Peninsula.

The continental area east of the Appalachian Mountains and highlands to the north and south is demarcated on the south by drainage to the Lake Okeechobee basin (which drains both westward to the Gulf and eastward to ocean), the Eastern Continental Divide (ECD) to the west, and the Saint Lawrence divide to the north. US physiographic regions of this watershed are the Atlantic Plain and the Appalachian Mountains & Highlands.

## Sub-watersheds adjacent to the Saint Lawrence divide

* Chedabucto Bay: 2,148 square miles (5,560 $km^2)$
* Gulf of Maine: 69,115 square miles (179,010 $km^2)$
* Long Island Sound: 16,246 square miles (42,080 $km^2)$
* Lower New York Bay: >14,000 square miles (36,000 $km^2)$

## Other notable sub-watersheds

    Rehoboth Bay
    Indian River Bay
    Assawoman Bay
    Isle of Wight Bay
    Sinepuxent Bay
    Chincoteague Bay

## Sub-watersheds adjacent to the Eastern Continental Divide

* Albemarle Sound: >14,380 square miles (37,200 $km^2)$
* Winyah Bay: >7,221 square miles (18,700 $km^2)$
* Santee River: >4,531 square miles (11,740 $km^2)$
* Savannah River: 9,850 square miles (25,500 $km^2)$
* St. Johns River: 8,840 square miles (22,900 $km^2)$
* Biscayne Bay: >2,800 square miles (7,300 $km^2)$
* Kissimmee River: 3,000 square miles (7,800 $km^2)$
