What you need to do is file a lawsuit against the person who holds the easement that has not beeen used for years under the theory that it has been abandoned as well for a quiet title declaration as to your property. I suggest that you consult with a real estate attorney about the matter you are writing about since filing of such a lawsuit, getting it served and the actual pleading is somewhat complicated. The filing of the lawsuit would be in the county and state where the real property at issue is located.