2.3 miles at 5% grade, a private road that is only rented to car racers (uphill) and long boarders (down hill), so it doesn't get beat up with public traffic. In fact it was completely rebuilt in '98-'99. Smooth and fast ! I've way more car than tires so this winter I'll be saving my nickles and dimes for racin' rubber. Am also adding more down force wings and things. I really want to break the 2 minute barrier on this hill with this car !