This is a video of abandoned trolleys stored on a remote property. There are trolleys from Boston, Pittsburgh, Philadelphia, Shaker Heights (Cleveland) and ex-CTA el cars (made from surplus PCC cars) in the colors of SEPTA's Norristown High Speed line. It would seem these trolleys became surplus during the 80s when newer light rail cars replaced the PCC cars. Most cars seem to have been stripped for copper and are not salvageable. A few cars in better condition are shown inside a maintenance building.
Some of the numbers match with late 1990s published reports of the Vintage Electric Streetcar Company of Windber PA. The current location is not given, but might be in North Carolina.
Another trolley graveyard exists near Buckeye, Ohio with more abandoned trolleys in open fields.
Why? These collections date from the early days of historic trolley lines and the owners of these trolleys probably hoped to sell these trolleys to the backers of new lines and make a profit. Or as a friend said, scrap dealers masquerading as preservationists. But PCC cars are really not old enough in most people's eyes to create an attraction with the drawing power anything like San Francisco's cable cars so their plan ultimately failed.