Bell Telephone's Prototype TDX Microwave Relay Stations (1947) Between New York City And Boston, MA (In Red)

New York City → Jackie Jones Mountain → Birch Hill → Spindle Hill → John Tom Hill → Bald Hill → Asnebumskit Mountain → Bear Hill → Boston



http://long-lines.net

http://www.coldwarcomms.org/Maps/attmap6_insets.gif

https://en.wikipedia.org/wiki/Microwave_transmission