Causes and risk factors of Barrett's esophagus As with most diseases and conditions, there are certain groups of people who are at a higher risk of developing Barrett's esophagus. GERD is a condition that is closely linked to Barrett's esophagus.
Potomac River â Map & Details. print this map. Located along the mid-Atlantic coast of the United States, and flowing into the Chesapeake Bay, the Potomac River flows through Washington DC, Virginia, Maryland, Pennsylvania and West Virginia.
It is coextensive with the District of Columbia (the city is often referred to as simply D.C.) and is located on the northern shore of the Potomac River at the riverâs navigation headâthat is, the transshipment point between waterway and land transport.