It is right on hwy 5 across from the Casey's. You can't miss it. My toy hauler is sitting there by a huge semi trailer that says Vocon on it. I will try and find a address.
105 Highway 5
Carlisle, IA 50047-9318
That is the Casey's across the road if you want to use an address for GPS. Track is on North side of highway and East at Casey's. If your on highway 5 you can't miss it. There is another camper set up here already.