This is a thread for maps of unbuilt railroads, starting with: https://archives.lib.state.ma.us/handle/2452/50593
This is a thread for maps of unbuilt railroads, starting with: https://archives.lib.state.ma.us/handle/2452/50593
...also I mentioned this on the open thread: https://archives.lib.state.ma.us/handle/2452/50715
Here is a plan for a New York City to North Station railroad line. Details on this are at https://en.wikipedia.org/wiki/New_York_and_Boston_Rapid_Transit_Company
It's the red line that cuts through Brookline, runs about a block from the Grand Junction in Cambridge, then cuts across the east side of East Cambridge: