I was thinking like, the new professor, or should it just be oak again?, talks to you about the increased disturbance in the natural order and the increase of all of the Legendary sightings and asks you to look into it for him.
Ok.... i will join your team i have a good knoledge of gold since i played a remake...
Ok first close up the real rt 29 on all directions.
2- Use the same tile in New bark and dig out a path.
3-Start the map and name it RT 29.
4- The fun part, add the events (people, signposts, etc)
5- insert the map.
6-Make the connection ( since its south in new bark, north and left and north is new ark town
and.... add wild pokemon