Category
page 1Chesapeake Bay watershed
Chesapeake Bay
estuary in the U.S. states of Maryland, Delaware, District of Columbia, and Virginia
Chesapeake and Ohio Canal
canal in Washington, D.C. and Maryland, United States

Tidal Basin
reservoir in Washington, D.C.

Otsego Lake
lake in Otsego County, New York, USA
Washington Channel
channel in Washington, D.C., United States
Chesapeake and Delaware Canal
canal in Delaware, United States of America
Patowmack Canal
canal in Fairfax County, Virginia, United States of America
Washington City Canal
historical canal in Washington, D.C., United States