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.
North Branch Potomac River. The North Branch between Cumberland, Maryland, and Ridgeley, West Virginia, in 2007. The source of the North Branch Potomac River is at the Fairfax Stone located at the junction of Grant, Tucker and Preston counties in West Virginia.