Right now at 17 but have a feeling I'll come up w/a few more as I reach back into my memory banks. Actually, just thought of another (Mystery Lake in Luverne, Al) so make that 18. Very limited in states skied: AL, GA (make that 19, Lake Tanisia in Dallas, GA), FL, AZ. Probably will end up in the 21-45 catagory when all is said and done but it will be in the low 20s.