In reply to Ginger McGrath: Did exactly this day plan 8 years ago and came down the North Ridge. We moved together up to the snow patch (which wasn't there )at the base of the crux on the cassin and pitched it afterwards.
The rap down the north ridge had rings the size of ship anchors and a couple a little awkward to find. During the bottom half, we down climbed solo about 400-500m worth until the place on the ridge where it isn't immediately clear where to go - go R (facing down). This is two raps above the col at the base of the ridge.
We left the bivi at the foot of the north ridge at about 5.30 and were back in the valley by about 21:00 celebrating. Long day but one of the best.
Ben