In reply to Michael Gordon:
> And it's a fair question. If the ridge had been done then this would surely be an escape onto an existing route rather than a complete route in itself. I'm guessing it hasn't though since no mention has been made of an earlier ascent of the ridge.
Looks like the upper NW ridge was done on the 3rd ascent in 1977, also from the Gillam Glacier, but with the ridge gained quite high up from the north spur:
http://publications.americanalpineclub.org/articles/12197711600/Northwest-R...
I only did a half-arsed search but couldn't immediately see anything done on the NW ridge since '77. Several more recent ascents of the west face, presumably over the other side of the ridge in these photos.
Post edited at 09:16