I have recently decided that I would begin investigating the remains of old street railways. Unfortunately there isn't too much left. Not nearly as much as the remains of steam railroads. Street railway lines quite often ran along the edges of existing roads, hence the name. Aftern abandonment of the street railways, these roads were widened the street railway right of way was destroyed. There were places where the street railway lines ran out in the middle of the woods on their own right of ways, not near any roads. It is these private right of ways that I will be on the lookout for.
Trolley line right of ways are also different from steam railroads in
that they do not have the grade limitations of steam railroads. Steam railroads
don't like to climb hills. Streetcar lines however, can deal with much
steeper hills than their steam counterparts.
In addition to the private right of ways that remain in places, there
are also buildings from the trolley days that remain as well. Examples
are car barns and generating plants.