You seem to have done your paperwork as to the easement that runs over your land.  The legal terms for the matter is a road easement.  There are certain easements that are express and written in to deeds of property. But there are other types of easements known as implied or prescriptive easements.  An implied easement or prescriptive easement may arise when a use of property continues for a certain period of time. The example you give here - a neighbor has been crossing the corner of a property for years- the neighbor may have acquired a prescriptive easement to continue to cross the property in the same manner.  Seek legal help in your area.  Good luck.