I had thought that it might be harder, but you got it! No official name as far as I know, but the Copelands (WOW authors) refer to it as "The Glacier" on their guided hiking website. A lot of their "secret" places are fairly easy to figure out if you know the area a bit, and put in some time on Google Earth.
We did a loop from Haymaker Bench- up the north side which looks steep when seen head on from the approach, but isn't really:
Across the top:
and down the S side:
Circling back underneath via the pictographs:
A very nice little hike! Is that giving away too much? I don't think so as info on the panel itself can be found in a couple of on-line sources.