There is a track very close to Cairo-
FastracMX
Also, Millsaps Training Facility is based in Cairo. You might want to sign up for a riding camp-
Millsaps
There is a track northwest of Cairo, not too far-
Coyote Run MX
We watch races at Fastrac occasionally. They just lost a Court of Appeals case in which some neighbors (all built close to the track years after the track opened) are attempting to close Fastrac permanently. They're already been ticked twice for excessive noise, so who's to say what the outcome will be.
If you really do stay in Cairo, I live about 15 miles away. I don't ride mx tracks, but ride in a 500,000 acre National Forest just outside of Tallahassee, Fla.- very close by. If you're interested give me a shout and I'd be glad to take you down there to ride. Lots of jeep trails, single track, and a large sand pit to ride in. You won't have any trouble keeping up, and it's a beautiful place to ride.