Nebraska Northeastern is a lot different because traffic actually existed on the line.
Here, south of Curtiss there is no business and no track, so you have to wonder what UP's intentions are. They already connect to Ferromex at Nogales. Naco is just barely visible on the map, you have to look really closely to see it. Could it be that Ferromex's line between Nogales and Agua Prieta is in poor shape, so interchanging at Naco would be a faster option in the future for both UP and FXE?