There's a track exactly like that half an hour from my house. Our club used to race there twice a year. I rode it once. It's a bunch of man made bumps in a flat field. The sand is 18" deep. It's welll watered, and groomed, and a rutted disaster after the first few races. I'm embarrassed to say that they hold a Canadian national there. Such is the sad state of modern motocross that people accept tracks like that.