This is really two locations in one, but since they were immediately adjacent to each other, I'd just combine them.
The Cement Plant was the subject of a newspaper article just before I visited. The reporter came to this place, decided it was an eyesore and hangout for drug abusers, and other undesirables, and called for its destruction.
Shortly afterwards, the city was able to locate the current owner and pressure them to demolish the structure.
Someone was, indeed, living there, and the place smelled utterly rancid.
The race track is now part of a walking trail that runs across part of the city. Tires can still be seen half-buried in the ground marking the periphery of the track. A coworker has early memories of this place and seems to recall that they would sometimes toss vehicles off the large rock formation behind the track to entertain the spectators.