Each map tile has its boundary marked by a green polyline and labeled “Tile boundary – Do Not Move or Delete” which serves to alert the mapper to not map out of boundary.
If you do happen to map out of boundary, the Masmap Tile Post-processor (MTPP) will detect this and give and Out-of-Bound (OOB) Error.
To view the coordinates of the Map Bounds, go to File Menu > Map Properties > Bounds tab.
