The easiest accessable line on the mountain is found on the main ascent track, this line starts with some technical skiing with some drops up at the start of the run, the the face opens out and some fast skiing on the open bowl can be had, with a pitch of about 30 degrees it is some challenging skiing without having the exposure of cradle mountain. Towards the bottom there is a large cliff so be carfull to stop before hiting this.
Over on the left there is the centre chute, this chute holds a large amount of snow and i have saw lots of avalanche debree towards the bottom of it. There are several technical sections when the snow is bit thiner, with several drops. The bottom section opens out to some fast flowing skiing.
I have also scoped several lines between the two main butresses, and they look possible from the air, however there are several small drops and these would only really be possible in good snow, the section would also be prone to avalanche as there are several large cornices at the top of the section.
Really the whole of Mount Ossa is skiable, including the north and east facing slopes in good snow, however because of the open terrain it seems to be prone to slide especially after some sunny days.
Access to Mount Ossa can be via the 14km arm river track or via the overland track itself. Pelion hut is about 4 hours from the top, and there is good snow caving in a sheltered gully on the top also.