An old, mad hobo whom Sal sees outside of Pittsburgh on his way back east in Part One. The Ghost shows Sal that one can wander around and find wilderness anywhere in America, that the freedom of the road has more to do with a state of mind or being than with getting to any particular destination, like the west coast.
The Ghost of the Susquehanna Character Timeline in On the Road
The timeline below shows where the character The Ghost of the Susquehanna appears in On the Road. The colored dots and icons indicate which themes are associated with that appearance.