I have attempted Grizzly twice via the North Couloir. I was turned back both times. A couple warnings. You need an ice axe and crampons for this snow climb. You need them both. Not having them both could result in death. Secondly, do not go around Grizzly Lake on the right side (west). This is twice, if not three times, as time consuming as the East side and the snowy couloirs are treacherous unless you use your essential ice axe and crampons. Third, the weather develops out of sight of the lake, so plan on the weather changing quickly and not seeing it until it is too late. Be careful, this is a fun but dangerous peak.