Description
Heads at Fairfax Stone in West Virginia just south of the West Virginia-Maryland state boundary on Backbone Mountain, trends northeast to join South Barnch Potomac River to form Potomac River.
Allegany County · Maryland
Heads at Fairfax Stone in West Virginia just south of the West Virginia-Maryland state boundary on Backbone Mountain, trends northeast to join South Barnch Potomac River to form Potomac River.