There is a stone wall, play equipment, large rocks, etc. that block what used to be a trail. It would not be useable by a fire brigade.

It isn't really a trail anymore. There are stone walls, play equipment, and rocks where the trail used to be. I would not consider this to be a trail.

There isn't really a trail, property owners have put up stone wall, play equipment, and moved rocks. I would not call this a trail.