In article ,
says...

The Los Angeles County Fairgrounds in Pomona is right next to Cable
Airport.

*chortle* If you're going to pick the fairgrounds, might as well pick
Bracket Field (POC) in La Verne. They share the same fence line. Well,
shared with at least the Dragstrip on the fairgrounds.

Final on 26R puts you 50-75 feet crossing perpendicularly over the
dragstrip. I've seen them stage as I fly over. I guess they wait until
nobody is on final before the run down the track. I'd hate to be on
final when one of the funny cars or top fuel cars blows up and throws
debris way up in the air.

Also under the final paths for 26L/R are the fairground parking lots.
During the week, you can see various Law enforcement types do high speed
training runs on a course painted in the parking lots.

--Carlos V.