SPOILER/ I’m intrigued by the map

I’m not sure who the ones circled in blue are. But it stops at Dawn’s. I was thinking it was made right after Janet left, but maybe Mr. M rerouted it? I just don’t know if he had the time to do it after Dawn crossed over. What do you all think?

I’m not sure who the ones circled in blue are. But it stops at Dawn’s. I was thinking it was made right after Janet left, but maybe Mr. M rerouted it? I just don’t know if he had the time to do it after Dawn crossed over. What do you all think?