V 5.10b, although opinions on the technical grade vary.
[1] https://www.mountainproject.com/route/105874557/direct-north-buttress-dnb
5 successful ascents recorded.
| Climber | Style | Ascent Date | Suggested Grade | |
|---|---|---|---|---|
| Yvon Chouinard | Lead | ground up | Jun 1962 | ||
| First ascent. With some points of aid. | ||||
| Steve Roper | Alternate Leads | ground up | Jun 1962 | ||
| First ascent. | ||||
| Frank Sacherer | Lead | ground up | 1965 | ||
| First free ascent. | ||||
| Eric Beck | Alternate Leads | ground up | 1965 | ||
| First free ascent. | ||||
| Charlie Fowler | Solo | 1977 | ||