I think "dispute" might have been a poor choice of words. When Loudoun was established, (cut off from Fairfax Co) in 1757, the eastern boundary was Difficult Run. This put families who had always lived in Fairfax, and were used to doing business under Fairfax County jurisdiction, under the auspices of Loudoun. After 40 years (who knows what went on) it was decided to move the eastern boundary to Sugarland Run, thereby "returning" a strip of land to Fairfax Co. See Charles Poland, From Frontier to Suburbia, p. 15. There must have been action in both courts for this to happen. If you really want to know, read the court records. Ms. Marty Hiatt, CGRS "Document what you find, listen to what you are told, and especially, love and respect your work." John Morris CGRS is a service mark of the Board for Certification of Genealogists, used under license after periodic evaluations by the Board.