Another Vacation Question

Smith grants an easement to DOT 1950. Roads get built Smith keeps a presence in the area until the 1980's when his son and family moves. Before the 1980s Smith grants a parcel to Johnson northerly of the ROW to the new ROW which is monumented with large DOT concrete and brass monuments. Then Grants a parcel to Jones southerly of the ROW, in each case calling out the ROW. 

DOT tires of owning the easement and grants it to the locals. In 2010 the local commission decides to reduce the width of the ROW and vacates. Now who owns the triangle? Is it Jones or the Smith heirs who are still around. 

I don't have much of a dog in this since I'm not doing a survey for any of the landowners, but it's near the survey I'm doing and gets me interested.