The Rail system was quite extensive (Link)

If you had a farm, you had a horse to get around locally.

IF you did manufacturing, you lived in mill owned housing and shopped at mill owned stores.

Coastal Maine has remained the same, with people living closer to, and working at, the ports. Unloading ships and loading them onto rails in Portland/Brunswick/Rockland/Eastport

North of the rail system was mostly the rough rural it still remains today. Think north of Greenville/Mt. Katahdin.