The general rule is that an easement may not be relocated without the consent of the owners of both the dominant and servient tenements. In Sibbel v. Fitch, 182 Md. 323, where it was contended that a road to a family graveyard had been relocated and used for thirteen years with the tacit acquiescence and consent of the defendants, we said (pp. 328, 329):
"When a right of way reserved in general terms has been definitely located and the owner of the dominant tenement has acquired vested right in the way as located, the general rule is that the location of the way can be changed only by agreement of the owners of the dominant and servient tenements.