[pdxstreetcar]

i think it was in 1967 that the USPS stopped using rail for first class mail, this is why it is located next to union station in the first place. i believe several other major cities still have major post offices like the one in portland next to the train station... philly, boston, nyc to name a few


just as a side note about the connection between rail and mail, this end of mail service by rail in 1967 is also considered to be the final straw for long distance rail, since the steady stream of money for mail service is what kept a lot of trains running.