As recently as ten years ago, I raced a two different airports. Banning, ca, about 100 mi east of L.A., the other in Rialto, between pomona and San berdoo. First ever of my laps in my Cortina at Banning, but only one race date, before somebody found an excuse to shut it down.
Raced several times at Rialto, won a race there, but we had to stop too, when planes would take off or land, cause the live runway crossed our shut down.
There was a period in socal when we were desperate to race anywhere, there was only one track running on a weekly basis, and it was about 60-100 mi from the L.A. basin. Long closed now, like ten others I raced at.
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