Anyone know about this drag strip in the Carlisle area ?

I made a wrong turn coming back to my campground on Saturday. Google maps had me take some back country roads including some real goat paths LOL Came across this drag strip literally in the middle of no where. I didn't stop the first time by, but I couldn't get it out of my head till I drove back to see it and take pictures. When we first got there there were two guys racing motorcycles down the track , but no other people were there. I just found it on line it's called South Mountain Raceway.

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