Ah yes, the old Yellowstone Trail. I’ve never really been on it, though. Came close to it in/near Chicago, however.
Welcome from Florida!
EDIT: I actually should note that I’ve been to Plymouth (and its rock). Guess that means that I hit it (the trail) twice.
EDIT: I’ve been on it in Upstate NY. Just not continuously (in particular, the portions in and around Albany, Buffalo, and Rochester).
EDIT: I apparently crossed paths with it in the Springfield MA area.