Thanks to all who replied. I think I've got it now! According to my latest calculations, the Katoomba Scenic Railway is 122%. There's a nice picture, taken when the forest wasn't there, at http://www.mountains.net.au/plaza/rail/scenic.htm Anyone know how many "world's steepest railways" there are in the USA at present? :-) David Martin Blue Mountains Railway Pages http://www.mountains.net.au/plaza/rail/