UKH

Next to the route Wall & Ramp, there is a stepped ice fall to the left of P1. No guidebook I own, nor the wider Internet, seems to have it down as a route. I climbed it last year as the right hand pitch (wall & ramp) was busy. However, I've no idea what it was! I suspect grade IV but unsure. Either way, a lovely little pitch up steep ice. 

Pictures attached for reference!

Does anyone have any idea on the route? 

I've not done the red line you have drawn on photo 1 but have climbed the icey line to the right of it (yellow line) From memory it looks rather like your other photo with the slabby wall to the right of the climber.

Yes did this many years a go, can’t remember when but my mate Paul lead this it was brilliant