The meridian? I assume you must mean some line of latitude, and after some searching, it looks like the 45th runs through Maine so it's my best guess.. I don't

The meridian? I assume you must mean some line of latitude, and after some searching, it looks like the 45th runs through Maine so it's my best guess.. I don't really remember there being a colloquial name for the 45th parallel though I remember seeing the sign every family roadtrip through OR to CA.