• The Chesapeake Bay is an estuary off of the Atlantic Ocean. It is the largest estuary in the United States. The estuary has a large watershed that crosses the boundaries of six different states and the District of Columbia. Download basic and detailed 1-page maps of the Chesapeake Bay and the watershed that drains into it.

  • Term Part of Speech Definition Encyclopedic Entry
    bay Noun

    body of water partially surrounded by land, usually with a wide mouth to a larger body of water.

    Encyclopedic Entry: bay
    Chesapeake Bay Noun

    large, shallow estuary of the Susquehanna and other rivers that flow through the U.S. states of Maryland, Virginia, West Virginia, Delaware, Pennsylvania, and New York and the capital of Washington, D.C., before emptying in the Atlantic Ocean.

    estuary Noun

    mouth of a river where the river's current meets the sea's tide.

    Encyclopedic Entry: estuary
    river Noun

    large stream of flowing fresh water.

    Encyclopedic Entry: river
    tributary Noun

    stream that feeds, or flows, into a larger stream.

    Encyclopedic Entry: tributary
    watershed Noun

    entire river system or an area drained by a river and its tributaries.

    Encyclopedic Entry: watershed