well i am a member of the battle creek moto club, and we put on 2 HS's a year most of the time im still getting back into the competition of things and last year was my first time being around a HS. from what i know about our they are AMA D14 events. they have 2 main class's one being a 2 hour, and another being a 3hour. our combines a woods section i think it was around 6 miles last year, a section of our vintage track(not much of anything you can call a jump on it and decently wide) and part of our motocross track about 1.5 to 2 miles. i havent raced it yet i was a course marshell this past year on my bike and i rode from the time the first event started to sweep on the very last class, so i was pretty pooped that day. ill try to find out when our first one is for ya. i know its pretty soon and this month. good luck i know our course is a riot to ride. :)